./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- 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 03:26:02,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:26:02,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:26:02,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:26:02,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:26:02,525 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:26:02,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:26:02,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:26:02,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:26:02,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:26:02,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:26:02,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:26:02,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:26:02,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:26:02,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:26:02,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:26:02,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:26:02,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:26:02,545 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:26:02,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:26:02,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:26:02,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:26:02,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:26:02,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:26:02,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:26:02,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:26:02,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:26:02,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:26:02,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:26:02,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:26:02,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:26:02,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:26:02,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:26:02,561 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:26:02,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:26:02,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:26:02,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:26:02,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:26:02,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:26:02,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:26:02,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:26:02,567 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:26:02,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:26:02,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:26:02,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:26:02,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:26:02,590 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:26:02,591 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:26:02,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:26:02,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:26:02,592 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:26:02,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:26:02,592 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:26:02,593 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:26:02,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:26:02,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:26:02,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:26:02,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:26:02,594 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:26:02,594 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:26:02,594 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:26:02,594 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:26:02,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:26:02,595 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:26:02,595 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:26:02,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:26:02,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:26:02,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:26:02,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:26:02,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:26:02,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:26:02,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:26:02,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:26:02,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:26:02,597 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:26:02,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:26:02,598 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:26:02,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:26:02,598 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2022-11-23 03:26:02,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:26:02,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:26:02,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:26:02,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:26:02,868 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:26:02,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-23 03:26:05,914 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:26:06,220 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:26:06,227 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-23 03:26:06,238 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data/49ad94126/746a1f1aacc54c69902e5ee27dfbde87/FLAG32dd4fcc3 [2022-11-23 03:26:06,259 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data/49ad94126/746a1f1aacc54c69902e5ee27dfbde87 [2022-11-23 03:26:06,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:26:06,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:26:06,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:26:06,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:26:06,274 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:26:06,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fbb9bdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06, skipping insertion in model container [2022-11-23 03:26:06,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:26:06,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:26:06,520 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_6e3c59a6-8392-409b-9342-3d88655e945b/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-23 03:26:06,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:26:06,602 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:26:06,613 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_6e3c59a6-8392-409b-9342-3d88655e945b/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-23 03:26:06,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:26:06,675 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:26:06,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06 WrapperNode [2022-11-23 03:26:06,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:26:06,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:26:06,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:26:06,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:26:06,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,738 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2022-11-23 03:26:06,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:26:06,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:26:06,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:26:06,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:26:06,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:26:06,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:26:06,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:26:06,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:26:06,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (1/1) ... [2022-11-23 03:26:06,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:26:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:06,815 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:26:06,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:26:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:26:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:26:06,903 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-23 03:26:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-23 03:26:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:26:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:26:06,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 03:26:06,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 03:26:07,002 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:26:07,005 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:26:07,617 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:26:07,629 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:26:07,629 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:26:07,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:07 BoogieIcfgContainer [2022-11-23 03:26:07,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:26:07,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:26:07,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:26:07,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:26:07,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:26:06" (1/3) ... [2022-11-23 03:26:07,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346b1d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:07, skipping insertion in model container [2022-11-23 03:26:07,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:26:06" (2/3) ... [2022-11-23 03:26:07,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@346b1d51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:26:07, skipping insertion in model container [2022-11-23 03:26:07,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:07" (3/3) ... [2022-11-23 03:26:07,650 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2022-11-23 03:26:07,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:26:07,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-23 03:26:07,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:26:07,776 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=PETRI_NET, 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;@5ba95768, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:26:07,776 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-23 03:26:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 102 states have internal predecessors, (140), 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 03:26:07,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:26:07,790 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:07,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:07,791 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:07,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:07,797 INFO L85 PathProgramCache]: Analyzing trace with hash 186900082, now seen corresponding path program 1 times [2022-11-23 03:26:07,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:07,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962096337] [2022-11-23 03:26:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:07,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:08,076 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 03:26:08,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:08,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962096337] [2022-11-23 03:26:08,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962096337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:08,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:08,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:26:08,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766138556] [2022-11-23 03:26:08,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:08,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:26:08,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:08,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:26:08,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:26:08,162 INFO L87 Difference]: Start difference. First operand has 109 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 102 states have internal predecessors, (140), 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) Second operand has 4 states, 3 states have (on average 2.6666666666666665) 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 03:26:08,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:08,364 INFO L93 Difference]: Finished difference Result 263 states and 382 transitions. [2022-11-23 03:26:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:26:08,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 03:26:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:08,379 INFO L225 Difference]: With dead ends: 263 [2022-11-23 03:26:08,379 INFO L226 Difference]: Without dead ends: 135 [2022-11-23 03:26:08,383 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 03:26:08,396 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 83 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:08,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 379 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:08,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-23 03:26:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2022-11-23 03:26:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.5339805825242718) internal successors, (158), 118 states have internal predecessors, (158), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2022-11-23 03:26:08,461 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 9 [2022-11-23 03:26:08,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:08,461 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2022-11-23 03:26:08,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) 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 03:26:08,462 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2022-11-23 03:26:08,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 03:26:08,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:08,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:08,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:26:08,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:08,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash 207635630, now seen corresponding path program 1 times [2022-11-23 03:26:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:08,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764981372] [2022-11-23 03:26:08,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:08,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:08,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:08,663 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 03:26:08,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:08,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764981372] [2022-11-23 03:26:08,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764981372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:08,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:08,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:08,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017552184] [2022-11-23 03:26:08,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:08,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:08,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:08,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:08,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:08,691 INFO L87 Difference]: Start difference. First operand 125 states and 166 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, (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 03:26:08,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:08,922 INFO L93 Difference]: Finished difference Result 275 states and 366 transitions. [2022-11-23 03:26:08,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:08,941 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, (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 14 [2022-11-23 03:26:08,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:08,944 INFO L225 Difference]: With dead ends: 275 [2022-11-23 03:26:08,944 INFO L226 Difference]: Without dead ends: 153 [2022-11-23 03:26:08,945 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 03:26:08,947 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 133 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:08,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 367 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:08,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-11-23 03:26:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 134. [2022-11-23 03:26:08,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 127 states have internal predecessors, (170), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:08,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 178 transitions. [2022-11-23 03:26:08,969 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 178 transitions. Word has length 14 [2022-11-23 03:26:08,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:08,970 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 178 transitions. [2022-11-23 03:26:08,970 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, (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 03:26:08,971 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 178 transitions. [2022-11-23 03:26:08,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-23 03:26:08,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:08,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:08,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:26:08,973 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:08,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:08,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2141737346, now seen corresponding path program 1 times [2022-11-23 03:26:08,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:08,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591990430] [2022-11-23 03:26:08,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:08,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:09,070 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 03:26:09,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:09,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591990430] [2022-11-23 03:26:09,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591990430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:09,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:09,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:09,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20623402] [2022-11-23 03:26:09,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:09,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:09,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:09,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:09,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:09,075 INFO L87 Difference]: Start difference. First operand 134 states and 178 transitions. Second operand has 5 states, 4 states have (on average 3.5) 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 03:26:09,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:09,189 INFO L93 Difference]: Finished difference Result 161 states and 207 transitions. [2022-11-23 03:26:09,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:09,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) 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 03:26:09,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:09,192 INFO L225 Difference]: With dead ends: 161 [2022-11-23 03:26:09,193 INFO L226 Difference]: Without dead ends: 159 [2022-11-23 03:26:09,193 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 03:26:09,195 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 112 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:09,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 379 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:09,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-23 03:26:09,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 134. [2022-11-23 03:26:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.5) internal successors, (168), 127 states have internal predecessors, (168), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:09,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 176 transitions. [2022-11-23 03:26:09,215 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 176 transitions. Word has length 15 [2022-11-23 03:26:09,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:09,215 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 176 transitions. [2022-11-23 03:26:09,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) 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 03:26:09,216 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 176 transitions. [2022-11-23 03:26:09,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:26:09,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:09,217 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:09,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:26:09,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:09,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash -966415747, now seen corresponding path program 1 times [2022-11-23 03:26:09,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:09,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134221875] [2022-11-23 03:26:09,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:09,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 03:26:09,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:09,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134221875] [2022-11-23 03:26:09,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134221875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:09,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:09,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:26:09,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504750607] [2022-11-23 03:26:09,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:09,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:26:09,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:09,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:26:09,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:26:09,272 INFO L87 Difference]: Start difference. First operand 134 states and 176 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 03:26:09,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:09,307 INFO L93 Difference]: Finished difference Result 142 states and 186 transitions. [2022-11-23 03:26:09,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:26:09,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 16 [2022-11-23 03:26:09,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:09,310 INFO L225 Difference]: With dead ends: 142 [2022-11-23 03:26:09,310 INFO L226 Difference]: Without dead ends: 141 [2022-11-23 03:26:09,311 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 03:26:09,313 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 4 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:09,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 200 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:26:09,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-11-23 03:26:09,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2022-11-23 03:26:09,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 110 states have (on average 1.490909090909091) internal successors, (164), 124 states have internal predecessors, (164), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 172 transitions. [2022-11-23 03:26:09,331 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 172 transitions. Word has length 16 [2022-11-23 03:26:09,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:09,332 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 172 transitions. [2022-11-23 03:26:09,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 03:26:09,332 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 172 transitions. [2022-11-23 03:26:09,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 03:26:09,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:09,334 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:09,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:26:09,335 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:09,336 INFO L85 PathProgramCache]: Analyzing trace with hash 108044843, now seen corresponding path program 1 times [2022-11-23 03:26:09,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:09,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306682654] [2022-11-23 03:26:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:09,448 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 03:26:09,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:09,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306682654] [2022-11-23 03:26:09,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306682654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:09,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415122714] [2022-11-23 03:26:09,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:09,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:09,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:09,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:09,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:26:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:09,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:26:09,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:09,659 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 03:26:09,659 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:26:09,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415122714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:09,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:26:09,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-23 03:26:09,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210631641] [2022-11-23 03:26:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:09,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:26:09,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:09,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:26:09,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:26:09,661 INFO L87 Difference]: Start difference. First operand 131 states and 172 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 03:26:09,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:09,740 INFO L93 Difference]: Finished difference Result 160 states and 213 transitions. [2022-11-23 03:26:09,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:26:09,741 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2022-11-23 03:26:09,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:09,746 INFO L225 Difference]: With dead ends: 160 [2022-11-23 03:26:09,746 INFO L226 Difference]: Without dead ends: 159 [2022-11-23 03:26:09,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 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 03:26:09,757 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 17 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:09,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 317 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:09,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-11-23 03:26:09,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2022-11-23 03:26:09,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 112 states have (on average 1.4910714285714286) internal successors, (167), 126 states have internal predecessors, (167), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 175 transitions. [2022-11-23 03:26:09,795 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 175 transitions. Word has length 17 [2022-11-23 03:26:09,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:09,795 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 175 transitions. [2022-11-23 03:26:09,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 03:26:09,796 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 175 transitions. [2022-11-23 03:26:09,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-23 03:26:09,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:09,797 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:09,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:10,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:10,003 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:10,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:10,004 INFO L85 PathProgramCache]: Analyzing trace with hash -406903932, now seen corresponding path program 1 times [2022-11-23 03:26:10,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:10,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195312842] [2022-11-23 03:26:10,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:10,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 03:26:10,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:10,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195312842] [2022-11-23 03:26:10,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195312842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:10,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:10,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:26:10,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307006444] [2022-11-23 03:26:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:10,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:26:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:10,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:26:10,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:26:10,101 INFO L87 Difference]: Start difference. First operand 133 states and 175 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 03:26:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:10,178 INFO L93 Difference]: Finished difference Result 166 states and 221 transitions. [2022-11-23 03:26:10,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:26:10,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 19 [2022-11-23 03:26:10,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:10,184 INFO L225 Difference]: With dead ends: 166 [2022-11-23 03:26:10,185 INFO L226 Difference]: Without dead ends: 164 [2022-11-23 03:26:10,193 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 03:26:10,194 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 19 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:10,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 301 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:10,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-23 03:26:10,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 135. [2022-11-23 03:26:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 128 states have internal predecessors, (169), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:10,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 177 transitions. [2022-11-23 03:26:10,212 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 177 transitions. Word has length 19 [2022-11-23 03:26:10,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:10,212 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 177 transitions. [2022-11-23 03:26:10,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 03:26:10,212 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions. [2022-11-23 03:26:10,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 03:26:10,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:10,220 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:10,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:26:10,223 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:10,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 906124417, now seen corresponding path program 1 times [2022-11-23 03:26:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:10,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916106271] [2022-11-23 03:26:10,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:10,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:10,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,368 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:26:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:10,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916106271] [2022-11-23 03:26:10,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916106271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:10,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:10,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:10,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830764600] [2022-11-23 03:26:10,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:10,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:10,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:10,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:10,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:10,373 INFO L87 Difference]: Start difference. First operand 135 states and 177 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 03:26:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:10,490 INFO L93 Difference]: Finished difference Result 198 states and 263 transitions. [2022-11-23 03:26:10,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:10,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2022-11-23 03:26:10,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:10,496 INFO L225 Difference]: With dead ends: 198 [2022-11-23 03:26:10,496 INFO L226 Difference]: Without dead ends: 196 [2022-11-23 03:26:10,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 03:26:10,509 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 136 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:10,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 295 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-23 03:26:10,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 166. [2022-11-23 03:26:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 145 states have (on average 1.4758620689655173) internal successors, (214), 158 states have internal predecessors, (214), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 222 transitions. [2022-11-23 03:26:10,583 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 222 transitions. Word has length 24 [2022-11-23 03:26:10,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:10,584 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 222 transitions. [2022-11-23 03:26:10,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 03:26:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 222 transitions. [2022-11-23 03:26:10,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 03:26:10,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:10,587 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:10,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:26:10,587 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash 877497061, now seen corresponding path program 1 times [2022-11-23 03:26:10,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:10,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017519540] [2022-11-23 03:26:10,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:10,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:10,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 03:26:10,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:10,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017519540] [2022-11-23 03:26:10,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017519540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:10,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:10,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:10,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995696854] [2022-11-23 03:26:10,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:10,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:10,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:10,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:10,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:10,750 INFO L87 Difference]: Start difference. First operand 166 states and 222 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 03:26:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:10,850 INFO L93 Difference]: Finished difference Result 190 states and 251 transitions. [2022-11-23 03:26:10,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:10,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2022-11-23 03:26:10,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:10,852 INFO L225 Difference]: With dead ends: 190 [2022-11-23 03:26:10,852 INFO L226 Difference]: Without dead ends: 188 [2022-11-23 03:26:10,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 03:26:10,854 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:10,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 295 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:10,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-23 03:26:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 159. [2022-11-23 03:26:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 138 states have (on average 1.463768115942029) internal successors, (202), 151 states have internal predecessors, (202), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 210 transitions. [2022-11-23 03:26:10,872 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 210 transitions. Word has length 24 [2022-11-23 03:26:10,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:10,874 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 210 transitions. [2022-11-23 03:26:10,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 03:26:10,875 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 210 transitions. [2022-11-23 03:26:10,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 03:26:10,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:10,876 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:10,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:26:10,877 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:10,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:10,877 INFO L85 PathProgramCache]: Analyzing trace with hash -339740318, now seen corresponding path program 1 times [2022-11-23 03:26:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:10,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033063170] [2022-11-23 03:26:10,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:10,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:26:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 03:26:11,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:11,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033063170] [2022-11-23 03:26:11,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033063170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:11,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:11,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:11,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858463668] [2022-11-23 03:26:11,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:11,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:11,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:11,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:11,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:11,016 INFO L87 Difference]: Start difference. First operand 159 states and 210 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:26:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:11,115 INFO L93 Difference]: Finished difference Result 183 states and 242 transitions. [2022-11-23 03:26:11,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:11,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-23 03:26:11,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:11,117 INFO L225 Difference]: With dead ends: 183 [2022-11-23 03:26:11,118 INFO L226 Difference]: Without dead ends: 181 [2022-11-23 03:26:11,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 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 03:26:11,121 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 134 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:11,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 288 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-23 03:26:11,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 153. [2022-11-23 03:26:11,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 134 states have (on average 1.4402985074626866) internal successors, (193), 145 states have internal predecessors, (193), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 201 transitions. [2022-11-23 03:26:11,135 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 201 transitions. Word has length 31 [2022-11-23 03:26:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:11,136 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 201 transitions. [2022-11-23 03:26:11,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:26:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 201 transitions. [2022-11-23 03:26:11,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 03:26:11,140 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:11,140 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:11,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 03:26:11,140 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:11,141 INFO L85 PathProgramCache]: Analyzing trace with hash -368367674, now seen corresponding path program 1 times [2022-11-23 03:26:11,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:11,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580738307] [2022-11-23 03:26:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:26:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 03:26:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:11,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580738307] [2022-11-23 03:26:11,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580738307] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:11,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:11,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:11,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88674832] [2022-11-23 03:26:11,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:11,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:11,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:11,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:11,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:26:11,238 INFO L87 Difference]: Start difference. First operand 153 states and 201 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:26:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:11,341 INFO L93 Difference]: Finished difference Result 175 states and 230 transitions. [2022-11-23 03:26:11,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:11,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2022-11-23 03:26:11,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:11,343 INFO L225 Difference]: With dead ends: 175 [2022-11-23 03:26:11,343 INFO L226 Difference]: Without dead ends: 173 [2022-11-23 03:26:11,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 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 03:26:11,344 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 135 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:11,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 286 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:11,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-11-23 03:26:11,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 144. [2022-11-23 03:26:11,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.4251968503937007) internal successors, (181), 136 states have internal predecessors, (181), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 189 transitions. [2022-11-23 03:26:11,362 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 189 transitions. Word has length 31 [2022-11-23 03:26:11,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:11,363 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 189 transitions. [2022-11-23 03:26:11,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:26:11,364 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 189 transitions. [2022-11-23 03:26:11,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-23 03:26:11,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:11,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:11,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:26:11,367 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:11,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:11,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1493195762, now seen corresponding path program 1 times [2022-11-23 03:26:11,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:11,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650779485] [2022-11-23 03:26:11,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:26:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 03:26:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:26:11,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:11,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650779485] [2022-11-23 03:26:11,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650779485] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:11,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662559397] [2022-11-23 03:26:11,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:11,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:11,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:11,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:11,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:26:11,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:11,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 03:26:11,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:11,669 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 03:26:11,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:11,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662559397] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:11,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:26:11,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 8] total 14 [2022-11-23 03:26:11,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745798841] [2022-11-23 03:26:11,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:11,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:26:11,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:11,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:26:11,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:26:11,841 INFO L87 Difference]: Start difference. First operand 144 states and 189 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 03:26:11,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:11,940 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2022-11-23 03:26:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:11,941 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 35 [2022-11-23 03:26:11,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:11,943 INFO L225 Difference]: With dead ends: 232 [2022-11-23 03:26:11,943 INFO L226 Difference]: Without dead ends: 182 [2022-11-23 03:26:11,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:26:11,944 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 37 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:11,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 459 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:11,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-23 03:26:11,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 144. [2022-11-23 03:26:11,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.4094488188976377) internal successors, (179), 136 states have internal predecessors, (179), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:11,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2022-11-23 03:26:11,961 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 35 [2022-11-23 03:26:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:11,961 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2022-11-23 03:26:11,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 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 03:26:11,961 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2022-11-23 03:26:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-23 03:26:11,963 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:11,963 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-23 03:26:11,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:12,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:12,170 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:12,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:12,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1303876285, now seen corresponding path program 1 times [2022-11-23 03:26:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:12,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692101413] [2022-11-23 03:26:12,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:12,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:26:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 03:26:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:26:12,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:12,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692101413] [2022-11-23 03:26:12,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692101413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:12,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352690136] [2022-11-23 03:26:12,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:12,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:12,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:12,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:12,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:26:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:26:12,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:12,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:26:12,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:12,554 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-23 03:26:12,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352690136] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:12,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:26:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 6] total 10 [2022-11-23 03:26:12,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719069968] [2022-11-23 03:26:12,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:12,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:26:12,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:12,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:26:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:26:12,557 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:26:12,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:12,583 INFO L93 Difference]: Finished difference Result 186 states and 235 transitions. [2022-11-23 03:26:12,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:26:12,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2022-11-23 03:26:12,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:12,585 INFO L225 Difference]: With dead ends: 186 [2022-11-23 03:26:12,586 INFO L226 Difference]: Without dead ends: 145 [2022-11-23 03:26:12,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:26:12,587 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 51 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:12,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 186 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:26:12,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-23 03:26:12,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2022-11-23 03:26:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 136 states have internal predecessors, (178), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2022-11-23 03:26:12,598 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 39 [2022-11-23 03:26:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:12,598 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2022-11-23 03:26:12,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:26:12,599 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2022-11-23 03:26:12,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 03:26:12,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:12,600 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-23 03:26:12,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:12,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:12,806 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:12,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:12,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1765516932, now seen corresponding path program 1 times [2022-11-23 03:26:12,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:12,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049543705] [2022-11-23 03:26:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:12,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:26:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 03:26:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:12,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:12,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049543705] [2022-11-23 03:26:12,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049543705] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:12,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186952429] [2022-11-23 03:26:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:12,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:12,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:12,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:12,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:26:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:26:13,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:13,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:13,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:13,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186952429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:13,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:13,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2022-11-23 03:26:13,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063368842] [2022-11-23 03:26:13,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:13,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:26:13,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:13,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:26:13,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:26:13,137 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 03:26:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:13,228 INFO L93 Difference]: Finished difference Result 242 states and 301 transitions. [2022-11-23 03:26:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:26:13,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 40 [2022-11-23 03:26:13,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:13,230 INFO L225 Difference]: With dead ends: 242 [2022-11-23 03:26:13,230 INFO L226 Difference]: Without dead ends: 198 [2022-11-23 03:26:13,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:26:13,231 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 57 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:13,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 561 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:13,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-23 03:26:13,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 151. [2022-11-23 03:26:13,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 141 states have internal predecessors, (183), 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 03:26:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 194 transitions. [2022-11-23 03:26:13,246 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 194 transitions. Word has length 40 [2022-11-23 03:26:13,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:13,246 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 194 transitions. [2022-11-23 03:26:13,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 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 03:26:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 194 transitions. [2022-11-23 03:26:13,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 03:26:13,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:13,248 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2022-11-23 03:26:13,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:13,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:26:13,455 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:13,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:13,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1708258630, now seen corresponding path program 1 times [2022-11-23 03:26:13,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:13,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799910268] [2022-11-23 03:26:13,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:13,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:13,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-23 03:26:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-23 03:26:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-23 03:26:13,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:13,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799910268] [2022-11-23 03:26:13,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799910268] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:13,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795240260] [2022-11-23 03:26:13,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:13,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:13,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:13,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:26:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:13,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 03:26:13,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:13,804 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 03:26:13,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:13,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795240260] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:13,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:13,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2022-11-23 03:26:13,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662806078] [2022-11-23 03:26:13,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:13,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 03:26:13,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:13,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 03:26:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:26:13,990 INFO L87 Difference]: Start difference. First operand 151 states and 194 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 03:26:14,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:14,472 INFO L93 Difference]: Finished difference Result 413 states and 528 transitions. [2022-11-23 03:26:14,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 03:26:14,473 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 40 [2022-11-23 03:26:14,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:14,474 INFO L225 Difference]: With dead ends: 413 [2022-11-23 03:26:14,474 INFO L226 Difference]: Without dead ends: 227 [2022-11-23 03:26:14,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2022-11-23 03:26:14,476 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 97 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:14,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1183 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:26:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-23 03:26:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 143. [2022-11-23 03:26:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 125 states have (on average 1.36) internal successors, (170), 134 states have internal predecessors, (170), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:14,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 178 transitions. [2022-11-23 03:26:14,492 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 178 transitions. Word has length 40 [2022-11-23 03:26:14,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:14,492 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 178 transitions. [2022-11-23 03:26:14,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-23 03:26:14,492 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 178 transitions. [2022-11-23 03:26:14,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 03:26:14,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:14,493 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:14,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:14,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 03:26:14,700 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash 2065115993, now seen corresponding path program 1 times [2022-11-23 03:26:14,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:14,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697335413] [2022-11-23 03:26:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:14,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:14,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:14,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-23 03:26:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:14,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-23 03:26:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:14,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:14,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697335413] [2022-11-23 03:26:14,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697335413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:14,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577269792] [2022-11-23 03:26:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:14,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:14,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:14,854 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:14,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:26:14,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:14,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:26:14,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:15,006 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:26:15,006 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:26:15,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577269792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:15,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:26:15,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2022-11-23 03:26:15,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411277422] [2022-11-23 03:26:15,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:15,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:26:15,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:15,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:26:15,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:26:15,008 INFO L87 Difference]: Start difference. First operand 143 states and 178 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 03:26:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:15,159 INFO L93 Difference]: Finished difference Result 311 states and 388 transitions. [2022-11-23 03:26:15,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:26:15,160 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-11-23 03:26:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:15,161 INFO L225 Difference]: With dead ends: 311 [2022-11-23 03:26:15,162 INFO L226 Difference]: Without dead ends: 200 [2022-11-23 03:26:15,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:26:15,163 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 29 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:15,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 325 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-23 03:26:15,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 136. [2022-11-23 03:26:15,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.347457627118644) internal successors, (159), 127 states have internal predecessors, (159), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:15,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2022-11-23 03:26:15,178 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 56 [2022-11-23 03:26:15,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:15,179 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2022-11-23 03:26:15,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-23 03:26:15,179 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2022-11-23 03:26:15,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 03:26:15,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:15,180 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:15,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:15,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 03:26:15,398 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:15,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash -699283725, now seen corresponding path program 1 times [2022-11-23 03:26:15,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:15,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43207658] [2022-11-23 03:26:15,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:15,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:15,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:15,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-23 03:26:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-23 03:26:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:15,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:15,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43207658] [2022-11-23 03:26:15,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43207658] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:15,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688352659] [2022-11-23 03:26:15,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:15,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:15,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:15,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:15,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:26:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:15,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:26:15,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:15,740 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:26:15,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:15,919 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:15,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688352659] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:15,919 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:15,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-23 03:26:15,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972464538] [2022-11-23 03:26:15,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:15,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-23 03:26:15,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-23 03:26:15,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:26:15,922 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 03:26:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:16,243 INFO L93 Difference]: Finished difference Result 572 states and 721 transitions. [2022-11-23 03:26:16,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:26:16,244 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2022-11-23 03:26:16,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:16,246 INFO L225 Difference]: With dead ends: 572 [2022-11-23 03:26:16,246 INFO L226 Difference]: Without dead ends: 464 [2022-11-23 03:26:16,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2022-11-23 03:26:16,247 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 323 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:16,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 426 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:26:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-11-23 03:26:16,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 163. [2022-11-23 03:26:16,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 145 states have (on average 1.3310344827586207) internal successors, (193), 154 states have internal predecessors, (193), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:16,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 201 transitions. [2022-11-23 03:26:16,270 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 201 transitions. Word has length 57 [2022-11-23 03:26:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:16,270 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 201 transitions. [2022-11-23 03:26:16,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 03:26:16,271 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 201 transitions. [2022-11-23 03:26:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 03:26:16,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:16,272 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:16,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:16,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:26:16,477 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:16,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:16,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1499167963, now seen corresponding path program 1 times [2022-11-23 03:26:16,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:16,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053422516] [2022-11-23 03:26:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:16,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-23 03:26:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-23 03:26:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:16,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:16,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053422516] [2022-11-23 03:26:16,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053422516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:16,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211992934] [2022-11-23 03:26:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:16,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:16,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:16,658 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:16,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:26:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:16,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:26:16,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 03:26:16,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:17,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211992934] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:17,006 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:17,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-23 03:26:17,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663470723] [2022-11-23 03:26:17,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:17,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 03:26:17,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:17,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 03:26:17,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-23 03:26:17,009 INFO L87 Difference]: Start difference. First operand 163 states and 201 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:26:17,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:17,627 INFO L93 Difference]: Finished difference Result 403 states and 506 transitions. [2022-11-23 03:26:17,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:26:17,628 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2022-11-23 03:26:17,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:17,629 INFO L225 Difference]: With dead ends: 403 [2022-11-23 03:26:17,630 INFO L226 Difference]: Without dead ends: 281 [2022-11-23 03:26:17,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:26:17,631 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 186 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:17,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 513 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:26:17,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2022-11-23 03:26:17,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 156. [2022-11-23 03:26:17,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 138 states have (on average 1.2971014492753623) internal successors, (179), 147 states have internal predecessors, (179), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:26:17,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 187 transitions. [2022-11-23 03:26:17,651 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 187 transitions. Word has length 61 [2022-11-23 03:26:17,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:17,651 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 187 transitions. [2022-11-23 03:26:17,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:26:17,651 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 187 transitions. [2022-11-23 03:26:17,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-23 03:26:17,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:17,652 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:17,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:17,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:17,858 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:17,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:17,859 INFO L85 PathProgramCache]: Analyzing trace with hash 239667187, now seen corresponding path program 2 times [2022-11-23 03:26:17,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:17,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701336317] [2022-11-23 03:26:17,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:17,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:17,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:18,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-23 03:26:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:18,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-23 03:26:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:18,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:18,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701336317] [2022-11-23 03:26:18,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701336317] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:18,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498510835] [2022-11-23 03:26:18,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:26:18,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:18,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:18,170 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:18,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:26:18,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:26:18,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:26:18,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 03:26:18,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-23 03:26:18,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:26:18,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498510835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:18,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:26:18,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2022-11-23 03:26:18,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411184827] [2022-11-23 03:26:18,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:18,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:26:18,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:26:18,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:26:18,348 INFO L87 Difference]: Start difference. First operand 156 states and 187 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 03:26:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:18,496 INFO L93 Difference]: Finished difference Result 294 states and 349 transitions. [2022-11-23 03:26:18,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:26:18,496 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 77 [2022-11-23 03:26:18,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:18,498 INFO L225 Difference]: With dead ends: 294 [2022-11-23 03:26:18,498 INFO L226 Difference]: Without dead ends: 251 [2022-11-23 03:26:18,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2022-11-23 03:26:18,499 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 95 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:18,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 742 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:26:18,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2022-11-23 03:26:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 177. [2022-11-23 03:26:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2721518987341771) internal successors, (201), 167 states have internal predecessors, (201), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 03:26:18,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 210 transitions. [2022-11-23 03:26:18,520 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 210 transitions. Word has length 77 [2022-11-23 03:26:18,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:18,521 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 210 transitions. [2022-11-23 03:26:18,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 03:26:18,521 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 210 transitions. [2022-11-23 03:26:18,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-23 03:26:18,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:18,525 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:18,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:18,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:26:18,736 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:18,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2114891252, now seen corresponding path program 1 times [2022-11-23 03:26:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:18,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304147822] [2022-11-23 03:26:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:18,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:18,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:19,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-23 03:26:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-23 03:26:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:19,068 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:19,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:19,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304147822] [2022-11-23 03:26:19,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304147822] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:19,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247058635] [2022-11-23 03:26:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:19,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:19,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:19,070 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:19,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-23 03:26:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:19,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:26:19,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:26:19,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:19,720 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:19,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247058635] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:19,721 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:19,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-23 03:26:19,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691754972] [2022-11-23 03:26:19,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:19,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-23 03:26:19,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:19,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-23 03:26:19,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2022-11-23 03:26:19,724 INFO L87 Difference]: Start difference. First operand 177 states and 210 transitions. Second operand has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 03:26:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:20,512 INFO L93 Difference]: Finished difference Result 986 states and 1243 transitions. [2022-11-23 03:26:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-23 03:26:20,512 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-11-23 03:26:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:20,516 INFO L225 Difference]: With dead ends: 986 [2022-11-23 03:26:20,516 INFO L226 Difference]: Without dead ends: 857 [2022-11-23 03:26:20,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 03:26:20,518 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 618 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:20,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1047 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:26:20,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-11-23 03:26:20,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 224. [2022-11-23 03:26:20,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 205 states have (on average 1.2634146341463415) internal successors, (259), 214 states have internal predecessors, (259), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 03:26:20,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 268 transitions. [2022-11-23 03:26:20,556 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 268 transitions. Word has length 82 [2022-11-23 03:26:20,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:20,556 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 268 transitions. [2022-11-23 03:26:20,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 03:26:20,557 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 268 transitions. [2022-11-23 03:26:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 03:26:20,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:20,561 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:20,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:20,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:20,767 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:20,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:20,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1818476286, now seen corresponding path program 1 times [2022-11-23 03:26:20,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:20,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854264008] [2022-11-23 03:26:20,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:20,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:20,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:21,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-23 03:26:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-23 03:26:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:21,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:21,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854264008] [2022-11-23 03:26:21,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854264008] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:21,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520870248] [2022-11-23 03:26:21,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:21,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:21,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:21,154 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:21,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 03:26:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:21,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:26:21,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:21,528 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 32 proven. 75 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:26:21,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:21,944 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:21,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520870248] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:21,945 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:21,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-11-23 03:26:21,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258462830] [2022-11-23 03:26:21,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:21,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-23 03:26:21,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-23 03:26:21,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2022-11-23 03:26:21,948 INFO L87 Difference]: Start difference. First operand 224 states and 268 transitions. Second operand has 25 states, 25 states have (on average 6.32) internal successors, (158), 25 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:26:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:37,481 INFO L93 Difference]: Finished difference Result 589 states and 732 transitions. [2022-11-23 03:26:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 03:26:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.32) internal successors, (158), 25 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 86 [2022-11-23 03:26:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:37,484 INFO L225 Difference]: With dead ends: 589 [2022-11-23 03:26:37,485 INFO L226 Difference]: Without dead ends: 446 [2022-11-23 03:26:37,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=502, Invalid=902, Unknown=2, NotChecked=0, Total=1406 [2022-11-23 03:26:37,487 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 311 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:37,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 999 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:26:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-11-23 03:26:37,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 217. [2022-11-23 03:26:37,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.2171717171717171) internal successors, (241), 207 states have internal predecessors, (241), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 03:26:37,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 250 transitions. [2022-11-23 03:26:37,534 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 250 transitions. Word has length 86 [2022-11-23 03:26:37,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:37,535 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 250 transitions. [2022-11-23 03:26:37,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.32) internal successors, (158), 25 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:26:37,535 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 250 transitions. [2022-11-23 03:26:37,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-11-23 03:26:37,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:37,537 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:37,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:37,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:37,743 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:37,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1334776844, now seen corresponding path program 2 times [2022-11-23 03:26:37,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:37,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412177001] [2022-11-23 03:26:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:37,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:37,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:37,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:38,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-23 03:26:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:38,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-23 03:26:38,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:38,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:38,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412177001] [2022-11-23 03:26:38,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412177001] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:38,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526408177] [2022-11-23 03:26:38,425 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:26:38,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:38,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:38,429 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:38,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-23 03:26:38,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:26:38,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:26:38,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:26:38,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 03:26:38,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:39,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526408177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:39,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:39,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-23 03:26:39,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030853531] [2022-11-23 03:26:39,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:39,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-23 03:26:39,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:39,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-23 03:26:39,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2022-11-23 03:26:39,920 INFO L87 Difference]: Start difference. First operand 217 states and 250 transitions. Second operand has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 03:26:41,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:41,743 INFO L93 Difference]: Finished difference Result 1730 states and 2195 transitions. [2022-11-23 03:26:41,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-23 03:26:41,744 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 122 [2022-11-23 03:26:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:41,750 INFO L225 Difference]: With dead ends: 1730 [2022-11-23 03:26:41,750 INFO L226 Difference]: Without dead ends: 1601 [2022-11-23 03:26:41,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2022-11-23 03:26:41,753 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1467 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:41,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1135 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 03:26:41,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-11-23 03:26:41,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 304. [2022-11-23 03:26:41,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 285 states have (on average 1.2175438596491228) internal successors, (347), 294 states have internal predecessors, (347), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 03:26:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 356 transitions. [2022-11-23 03:26:41,807 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 356 transitions. Word has length 122 [2022-11-23 03:26:41,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:41,807 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 356 transitions. [2022-11-23 03:26:41,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 03:26:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 356 transitions. [2022-11-23 03:26:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-23 03:26:41,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:41,810 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:41,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:42,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-23 03:26:42,015 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:42,016 INFO L85 PathProgramCache]: Analyzing trace with hash 783253250, now seen corresponding path program 2 times [2022-11-23 03:26:42,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:42,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341318493] [2022-11-23 03:26:42,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:42,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:42,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:42,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-23 03:26:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:42,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-23 03:26:42,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 4 proven. 471 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:26:42,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:42,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341318493] [2022-11-23 03:26:42,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341318493] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:42,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056567676] [2022-11-23 03:26:42,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:26:42,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:42,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:42,916 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:42,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-23 03:26:43,096 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:26:43,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:26:43,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:26:43,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:43,248 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-11-23 03:26:43,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-11-23 03:26:43,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056567676] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:43,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:43,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 6] total 28 [2022-11-23 03:26:43,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605894953] [2022-11-23 03:26:43,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:43,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-23 03:26:43,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:43,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-23 03:26:43,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2022-11-23 03:26:43,607 INFO L87 Difference]: Start difference. First operand 304 states and 356 transitions. Second operand has 28 states, 28 states have (on average 4.964285714285714) internal successors, (139), 26 states have internal predecessors, (139), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-23 03:26:44,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:44,958 INFO L93 Difference]: Finished difference Result 698 states and 839 transitions. [2022-11-23 03:26:44,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 03:26:44,959 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.964285714285714) internal successors, (139), 26 states have internal predecessors, (139), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 126 [2022-11-23 03:26:44,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:44,965 INFO L225 Difference]: With dead ends: 698 [2022-11-23 03:26:44,965 INFO L226 Difference]: Without dead ends: 566 [2022-11-23 03:26:44,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=251, Invalid=1081, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 03:26:44,967 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 568 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:44,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 2421 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 03:26:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-11-23 03:26:45,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 313. [2022-11-23 03:26:45,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 292 states have (on average 1.2089041095890412) internal successors, (353), 300 states have internal predecessors, (353), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-23 03:26:45,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 366 transitions. [2022-11-23 03:26:45,019 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 366 transitions. Word has length 126 [2022-11-23 03:26:45,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:45,020 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 366 transitions. [2022-11-23 03:26:45,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.964285714285714) internal successors, (139), 26 states have internal predecessors, (139), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-23 03:26:45,020 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 366 transitions. [2022-11-23 03:26:45,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-23 03:26:45,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:45,022 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:45,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-11-23 03:26:45,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-11-23 03:26:45,228 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:45,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash -303496585, now seen corresponding path program 1 times [2022-11-23 03:26:45,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:45,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503507586] [2022-11-23 03:26:45,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:45,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:45,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:45,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:45,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-23 03:26:46,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:26:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 4 proven. 547 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 03:26:46,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:46,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503507586] [2022-11-23 03:26:46,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503507586] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:46,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952151994] [2022-11-23 03:26:46,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:46,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:46,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:46,137 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:46,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-23 03:26:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:46,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-23 03:26:46,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-11-23 03:26:46,750 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:47,636 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-11-23 03:26:47,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952151994] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:47,636 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:47,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10, 9] total 36 [2022-11-23 03:26:47,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843463955] [2022-11-23 03:26:47,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:47,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-11-23 03:26:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:47,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-11-23 03:26:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1151, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 03:26:47,639 INFO L87 Difference]: Start difference. First operand 313 states and 366 transitions. Second operand has 36 states, 36 states have (on average 4.638888888888889) internal successors, (167), 34 states have internal predecessors, (167), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-23 03:26:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:50,467 INFO L93 Difference]: Finished difference Result 876 states and 1049 transitions. [2022-11-23 03:26:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-11-23 03:26:50,468 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.638888888888889) internal successors, (167), 34 states have internal predecessors, (167), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 136 [2022-11-23 03:26:50,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:50,471 INFO L225 Difference]: With dead ends: 876 [2022-11-23 03:26:50,471 INFO L226 Difference]: Without dead ends: 735 [2022-11-23 03:26:50,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=437, Invalid=2755, Unknown=0, NotChecked=0, Total=3192 [2022-11-23 03:26:50,473 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 959 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 1939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:50,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 3272 Invalid, 1939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-23 03:26:50,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-23 03:26:50,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 329. [2022-11-23 03:26:50,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 306 states have (on average 1.2124183006535947) internal successors, (371), 314 states have internal predecessors, (371), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (11), 10 states have call predecessors, (11), 6 states have call successors, (11) [2022-11-23 03:26:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 388 transitions. [2022-11-23 03:26:50,528 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 388 transitions. Word has length 136 [2022-11-23 03:26:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:50,529 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 388 transitions. [2022-11-23 03:26:50,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.638888888888889) internal successors, (167), 34 states have internal predecessors, (167), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-23 03:26:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 388 transitions. [2022-11-23 03:26:50,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-23 03:26:50,531 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:50,531 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:50,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:50,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:50,738 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1862848251, now seen corresponding path program 1 times [2022-11-23 03:26:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092771833] [2022-11-23 03:26:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:50,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:50,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:51,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:26:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:26:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 4 proven. 622 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 03:26:51,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:51,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092771833] [2022-11-23 03:26:51,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092771833] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:51,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619455308] [2022-11-23 03:26:51,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:51,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:51,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:51,610 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:51,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-23 03:26:51,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:51,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 03:26:51,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:52,171 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2022-11-23 03:26:52,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:26:52,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619455308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:52,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:26:52,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2022-11-23 03:26:52,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715999657] [2022-11-23 03:26:52,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:52,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:26:52,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:26:52,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2022-11-23 03:26:52,174 INFO L87 Difference]: Start difference. First operand 329 states and 388 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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 03:26:52,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:52,819 INFO L93 Difference]: Finished difference Result 544 states and 643 transitions. [2022-11-23 03:26:52,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:26:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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 141 [2022-11-23 03:26:52,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:52,822 INFO L225 Difference]: With dead ends: 544 [2022-11-23 03:26:52,822 INFO L226 Difference]: Without dead ends: 501 [2022-11-23 03:26:52,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=123, Invalid=1137, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 03:26:52,823 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 212 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:52,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1416 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:26:52,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-23 03:26:52,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 362. [2022-11-23 03:26:52,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 338 states have (on average 1.2218934911242603) internal successors, (413), 344 states have internal predecessors, (413), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-23 03:26:52,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 433 transitions. [2022-11-23 03:26:52,895 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 433 transitions. Word has length 141 [2022-11-23 03:26:52,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:52,895 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 433 transitions. [2022-11-23 03:26:52,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 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 03:26:52,896 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 433 transitions. [2022-11-23 03:26:52,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 03:26:52,898 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:52,898 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:52,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:53,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:53,104 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:53,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:53,104 INFO L85 PathProgramCache]: Analyzing trace with hash -8442539, now seen corresponding path program 1 times [2022-11-23 03:26:53,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:53,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831416089] [2022-11-23 03:26:53,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:53,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:53,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:53,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:53,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:53,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:26:53,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:53,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:26:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:53,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:53,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831416089] [2022-11-23 03:26:53,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831416089] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:53,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298004216] [2022-11-23 03:26:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:53,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:53,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:53,982 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:54,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-23 03:26:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:54,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 03:26:54,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:54,845 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-23 03:26:54,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:26:54,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298004216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:54,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:26:54,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 28 [2022-11-23 03:26:54,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431934363] [2022-11-23 03:26:54,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:54,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:26:54,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:54,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:26:54,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2022-11-23 03:26:54,848 INFO L87 Difference]: Start difference. First operand 362 states and 433 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 03:26:55,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:55,174 INFO L93 Difference]: Finished difference Result 460 states and 543 transitions. [2022-11-23 03:26:55,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:26:55,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 142 [2022-11-23 03:26:55,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:55,177 INFO L225 Difference]: With dead ends: 460 [2022-11-23 03:26:55,177 INFO L226 Difference]: Without dead ends: 456 [2022-11-23 03:26:55,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=884, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:26:55,178 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 183 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:55,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 639 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:26:55,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-23 03:26:55,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 395. [2022-11-23 03:26:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 371 states have (on average 1.2237196765498652) internal successors, (454), 377 states have internal predecessors, (454), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-23 03:26:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 474 transitions. [2022-11-23 03:26:55,245 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 474 transitions. Word has length 142 [2022-11-23 03:26:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:55,245 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 474 transitions. [2022-11-23 03:26:55,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 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 03:26:55,246 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 474 transitions. [2022-11-23 03:26:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-23 03:26:55,248 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:55,248 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:55,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:55,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-23 03:26:55,454 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:55,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:55,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1414285669, now seen corresponding path program 1 times [2022-11-23 03:26:55,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:55,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288342794] [2022-11-23 03:26:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:55,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:55,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:55,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:26:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:55,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:26:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2022-11-23 03:26:55,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:55,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288342794] [2022-11-23 03:26:55,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288342794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:55,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:26:55,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:26:55,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725450070] [2022-11-23 03:26:55,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:55,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:26:55,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:55,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:26:55,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:26:55,590 INFO L87 Difference]: Start difference. First operand 395 states and 474 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 03:26:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:55,704 INFO L93 Difference]: Finished difference Result 657 states and 806 transitions. [2022-11-23 03:26:55,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:26:55,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 142 [2022-11-23 03:26:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:55,707 INFO L225 Difference]: With dead ends: 657 [2022-11-23 03:26:55,707 INFO L226 Difference]: Without dead ends: 439 [2022-11-23 03:26:55,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:26:55,709 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 4 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:55,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 283 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:26:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2022-11-23 03:26:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 415. [2022-11-23 03:26:55,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 391 states have (on average 1.2122762148337596) internal successors, (474), 397 states have internal predecessors, (474), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-23 03:26:55,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 494 transitions. [2022-11-23 03:26:55,774 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 494 transitions. Word has length 142 [2022-11-23 03:26:55,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:55,774 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 494 transitions. [2022-11-23 03:26:55,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 03:26:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 494 transitions. [2022-11-23 03:26:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-23 03:26:55,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:55,777 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:55,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-23 03:26:55,779 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:55,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:55,780 INFO L85 PathProgramCache]: Analyzing trace with hash -261718500, now seen corresponding path program 1 times [2022-11-23 03:26:55,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:55,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953975709] [2022-11-23 03:26:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:55,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:55,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:56,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:56,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:56,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:26:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-23 03:26:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:56,723 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 03:26:56,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:56,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953975709] [2022-11-23 03:26:56,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953975709] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:56,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118300917] [2022-11-23 03:26:56,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:56,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:56,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:56,726 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:56,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-23 03:26:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:57,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 03:26:57,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:57,436 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-23 03:26:57,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:26:57,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118300917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:26:57,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:26:57,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 28 [2022-11-23 03:26:57,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688030646] [2022-11-23 03:26:57,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:26:57,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:26:57,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:57,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:26:57,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2022-11-23 03:26:57,439 INFO L87 Difference]: Start difference. First operand 415 states and 494 transitions. Second operand has 10 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 03:26:57,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:26:57,783 INFO L93 Difference]: Finished difference Result 483 states and 567 transitions. [2022-11-23 03:26:57,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 03:26:57,784 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 143 [2022-11-23 03:26:57,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:26:57,786 INFO L225 Difference]: With dead ends: 483 [2022-11-23 03:26:57,786 INFO L226 Difference]: Without dead ends: 474 [2022-11-23 03:26:57,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=108, Invalid=884, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:26:57,788 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 166 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:26:57,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 674 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:26:57,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-23 03:26:57,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 415. [2022-11-23 03:26:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 391 states have (on average 1.2046035805626598) internal successors, (471), 397 states have internal predecessors, (471), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-23 03:26:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 491 transitions. [2022-11-23 03:26:57,860 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 491 transitions. Word has length 143 [2022-11-23 03:26:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:26:57,861 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 491 transitions. [2022-11-23 03:26:57,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 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 03:26:57,861 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 491 transitions. [2022-11-23 03:26:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-23 03:26:57,863 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:26:57,864 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:26:57,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-23 03:26:58,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-23 03:26:58,070 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:26:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:26:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash -280681651, now seen corresponding path program 1 times [2022-11-23 03:26:58,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:26:58,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103903108] [2022-11-23 03:26:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:58,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:26:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:26:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:58,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:26:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:26:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:58,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:26:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2022-11-23 03:26:58,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:26:58,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103903108] [2022-11-23 03:26:58,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103903108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:26:58,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913749037] [2022-11-23 03:26:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:26:58,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:26:58,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:26:58,463 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:26:58,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-23 03:26:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:26:58,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-23 03:26:58,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:26:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-23 03:26:58,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:26:58,960 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2022-11-23 03:26:58,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913749037] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:26:58,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:26:58,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2022-11-23 03:26:58,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334046569] [2022-11-23 03:26:58,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:26:58,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-23 03:26:58,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:26:58,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-23 03:26:58,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2022-11-23 03:26:58,962 INFO L87 Difference]: Start difference. First operand 415 states and 491 transitions. Second operand has 24 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 21 states have internal predecessors, (89), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-23 03:27:00,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:27:00,339 INFO L93 Difference]: Finished difference Result 1205 states and 1401 transitions. [2022-11-23 03:27:00,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-11-23 03:27:00,340 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 21 states have internal predecessors, (89), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) Word has length 143 [2022-11-23 03:27:00,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:27:00,344 INFO L225 Difference]: With dead ends: 1205 [2022-11-23 03:27:00,345 INFO L226 Difference]: Without dead ends: 1155 [2022-11-23 03:27:00,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=341, Invalid=2011, Unknown=0, NotChecked=0, Total=2352 [2022-11-23 03:27:00,347 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1391 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-23 03:27:00,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 3610 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-23 03:27:00,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-11-23 03:27:00,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 449. [2022-11-23 03:27:00,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 423 states have (on average 1.2056737588652482) internal successors, (510), 427 states have internal predecessors, (510), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 17 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 03:27:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 535 transitions. [2022-11-23 03:27:00,425 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 535 transitions. Word has length 143 [2022-11-23 03:27:00,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:27:00,425 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 535 transitions. [2022-11-23 03:27:00,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 21 states have internal predecessors, (89), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-23 03:27:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 535 transitions. [2022-11-23 03:27:00,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-23 03:27:00,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:27:00,427 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:27:00,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-23 03:27:00,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-23 03:27:00,633 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:27:00,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:27:00,634 INFO L85 PathProgramCache]: Analyzing trace with hash -280679729, now seen corresponding path program 1 times [2022-11-23 03:27:00,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:27:00,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103950325] [2022-11-23 03:27:00,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:00,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:27:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:27:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:00,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:27:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:01,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-23 03:27:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:01,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-23 03:27:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:01,519 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 4 proven. 616 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-23 03:27:01,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:27:01,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103950325] [2022-11-23 03:27:01,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103950325] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:27:01,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431663322] [2022-11-23 03:27:01,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:01,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:01,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:27:01,522 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:27:01,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-23 03:27:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:01,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 03:27:01,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:27:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-23 03:27:02,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:27:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-23 03:27:03,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431663322] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:27:03,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:27:03,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 10] total 39 [2022-11-23 03:27:03,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129131739] [2022-11-23 03:27:03,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:27:03,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-23 03:27:03,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:27:03,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-23 03:27:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1364, Unknown=0, NotChecked=0, Total=1482 [2022-11-23 03:27:03,361 INFO L87 Difference]: Start difference. First operand 449 states and 535 transitions. Second operand has 39 states, 39 states have (on average 5.0) internal successors, (195), 37 states have internal predecessors, (195), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-23 03:27:07,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:27:07,339 INFO L93 Difference]: Finished difference Result 1243 states and 1490 transitions. [2022-11-23 03:27:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-11-23 03:27:07,339 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.0) internal successors, (195), 37 states have internal predecessors, (195), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 143 [2022-11-23 03:27:07,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:27:07,343 INFO L225 Difference]: With dead ends: 1243 [2022-11-23 03:27:07,343 INFO L226 Difference]: Without dead ends: 966 [2022-11-23 03:27:07,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=549, Invalid=3873, Unknown=0, NotChecked=0, Total=4422 [2022-11-23 03:27:07,346 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1325 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 2412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:27:07,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1335 Valid, 3840 Invalid, 2412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-23 03:27:07,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2022-11-23 03:27:07,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 456. [2022-11-23 03:27:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 430 states have (on average 1.2069767441860466) internal successors, (519), 433 states have internal predecessors, (519), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 03:27:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 544 transitions. [2022-11-23 03:27:07,425 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 544 transitions. Word has length 143 [2022-11-23 03:27:07,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:27:07,426 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 544 transitions. [2022-11-23 03:27:07,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.0) internal successors, (195), 37 states have internal predecessors, (195), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2022-11-23 03:27:07,426 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 544 transitions. [2022-11-23 03:27:07,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-23 03:27:07,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:27:07,428 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:27:07,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-23 03:27:07,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-23 03:27:07,634 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:27:07,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:27:07,635 INFO L85 PathProgramCache]: Analyzing trace with hash 158634451, now seen corresponding path program 1 times [2022-11-23 03:27:07,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:27:07,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951492262] [2022-11-23 03:27:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:07,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:27:07,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:07,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 03:27:07,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:07,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 03:27:07,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:08,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-23 03:27:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:08,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-23 03:27:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:08,637 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 4 proven. 702 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 03:27:08,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:27:08,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951492262] [2022-11-23 03:27:08,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951492262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:27:08,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613841219] [2022-11-23 03:27:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:27:08,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:27:08,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:27:08,639 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:27:08,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-23 03:27:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:27:08,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-23 03:27:08,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:27:09,550 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 38 proven. 680 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 03:27:09,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:27:10,981 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 4 proven. 702 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-23 03:27:10,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613841219] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:27:10,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:27:10,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 58 [2022-11-23 03:27:10,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584727506] [2022-11-23 03:27:10,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:27:10,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-23 03:27:10,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:27:10,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-23 03:27:10,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=761, Invalid=2545, Unknown=0, NotChecked=0, Total=3306 [2022-11-23 03:27:10,985 INFO L87 Difference]: Start difference. First operand 456 states and 544 transitions. Second operand has 58 states, 58 states have (on average 5.637931034482759) internal successors, (327), 58 states have internal predecessors, (327), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:27:25,414 WARN L233 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 62 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:27:38,439 WARN L233 SmtUtils]: Spent 8.57s on a formula simplification. DAG size of input: 58 DAG size of output: 28 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:27:49,834 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 47 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:28:01,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 03:28:03,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 03:28:05,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 03:28:07,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-23 03:28:28,669 WARN L233 SmtUtils]: Spent 8.50s on a formula simplification. DAG size of input: 70 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:29:02,799 WARN L233 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 53 DAG size of output: 17 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-23 03:30:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:11,504 INFO L93 Difference]: Finished difference Result 1387 states and 1729 transitions. [2022-11-23 03:30:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-11-23 03:30:11,507 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 5.637931034482759) internal successors, (327), 58 states have internal predecessors, (327), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 148 [2022-11-23 03:30:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:11,512 INFO L225 Difference]: With dead ends: 1387 [2022-11-23 03:30:11,512 INFO L226 Difference]: Without dead ends: 1081 [2022-11-23 03:30:11,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2252 ImplicationChecksByTransitivity, 169.9s TimeCoverageRelationStatistics Valid=2669, Invalid=6431, Unknown=20, NotChecked=0, Total=9120 [2022-11-23 03:30:11,516 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 1129 mSDsluCounter, 2980 mSDsCounter, 0 mSdLazyCounter, 3730 mSolverCounterSat, 427 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1129 SdHoareTripleChecker+Valid, 3132 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 3730 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:11,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1129 Valid, 3132 Invalid, 4160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 3730 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-11-23 03:30:11,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2022-11-23 03:30:11,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 484. [2022-11-23 03:30:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 458 states have (on average 1.1790393013100438) internal successors, (540), 461 states have internal predecessors, (540), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-23 03:30:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 565 transitions. [2022-11-23 03:30:11,615 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 565 transitions. Word has length 148 [2022-11-23 03:30:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:11,615 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 565 transitions. [2022-11-23 03:30:11,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.637931034482759) internal successors, (327), 58 states have internal predecessors, (327), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 03:30:11,616 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 565 transitions. [2022-11-23 03:30:11,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-23 03:30:11,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:11,618 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:11,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-23 03:30:11,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:30:11,824 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:11,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:11,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1909714657, now seen corresponding path program 2 times [2022-11-23 03:30:11,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:30:11,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799644210] [2022-11-23 03:30:11,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:11,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:30:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:30:11,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:30:11,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:30:11,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:30:11,998 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:30:11,999 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-23 03:30:12,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-23 03:30:12,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-23 03:30:12,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-23 03:30:12,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-23 03:30:12,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-23 03:30:12,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-23 03:30:12,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-23 03:30:12,002 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-23 03:30:12,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-23 03:30:12,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-23 03:30:12,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-23 03:30:12,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-23 03:30:12,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-23 03:30:12,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-23 03:30:12,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-23 03:30:12,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-23 03:30:12,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-23 03:30:12,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-23 03:30:12,008 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:12,012 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:30:12,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:30:12 BoogieIcfgContainer [2022-11-23 03:30:12,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:30:12,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:30:12,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:30:12,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:30:12,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:26:07" (3/4) ... [2022-11-23 03:30:12,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:30:12,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:30:12,104 INFO L158 Benchmark]: Toolchain (without parser) took 245837.28ms. Allocated memory was 157.3MB in the beginning and 287.3MB in the end (delta: 130.0MB). Free memory was 126.2MB in the beginning and 134.4MB in the end (delta: -8.2MB). Peak memory consumption was 122.6MB. Max. memory is 16.1GB. [2022-11-23 03:30:12,104 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 115.3MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:30:12,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 407.01ms. Allocated memory is still 157.3MB. Free memory was 126.2MB in the beginning and 112.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 03:30:12,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.35ms. Allocated memory is still 157.3MB. Free memory was 112.8MB in the beginning and 110.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:30:12,105 INFO L158 Benchmark]: Boogie Preprocessor took 35.77ms. Allocated memory is still 157.3MB. Free memory was 110.2MB in the beginning and 108.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:30:12,105 INFO L158 Benchmark]: RCFGBuilder took 859.37ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 86.3MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 03:30:12,106 INFO L158 Benchmark]: TraceAbstraction took 244459.60ms. Allocated memory was 157.3MB in the beginning and 287.3MB in the end (delta: 130.0MB). Free memory was 85.6MB in the beginning and 134.4MB in the end (delta: -48.8MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. [2022-11-23 03:30:12,106 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 287.3MB. Free memory is still 134.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:30:12,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 115.3MB. Free memory is still 68.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 407.01ms. Allocated memory is still 157.3MB. Free memory was 126.2MB in the beginning and 112.8MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.35ms. Allocated memory is still 157.3MB. Free memory was 112.8MB in the beginning and 110.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.77ms. Allocated memory is still 157.3MB. Free memory was 110.2MB in the beginning and 108.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 859.37ms. Allocated memory is still 157.3MB. Free memory was 108.6MB in the beginning and 86.3MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 244459.60ms. Allocated memory was 157.3MB in the beginning and 287.3MB in the end (delta: 130.0MB). Free memory was 85.6MB in the beginning and 134.4MB in the end (delta: -48.8MB). Peak memory consumption was 82.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 287.3MB. Free memory is still 134.4MB. 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: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76, overapproximation of bitwiseAnd at line 171. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=-127, eb=-128] [L238] CALL, EXPR base2flt(0, 0) VAL [unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [__retres4=0, e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L80] return (__retres4); VAL [\result=0, __retres4=0, e=0, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-127, eb=-128] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L29] COND FALSE !(! m) VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L35] COND TRUE m < 1U << 24U VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=0, m=1, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-1, m=2, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-2, m=4, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-3, m=8, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-4, m=16, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-5, m=32, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-6, m=64, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-7, m=128, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-8, m=256, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-9, m=512, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-10, m=1024, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-11, m=2048, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-12, m=4096, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-13, m=8192, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-14, m=16384, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-15, m=32768, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-16, m=65536, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-17, m=131072, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-18, m=262144, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-19, m=524288, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-20, m=1048576, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-21, m=2097152, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-22, m=4194304, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND TRUE m < 1U << 24U VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L37] COND TRUE 1 VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L39] COND FALSE !(e <= -128) VAL [e=-23, m=8388608, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [e=-24, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L47] COND FALSE !(m < 1U << 24U) VAL [e=-24, m=16777216, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L76] m = m & ~ (1U << 24U) VAL [e=-24, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L77] EXPR e + 128 VAL [e=-24, m=0, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [__retres4=1744830464, e=-24, m=0, res=1744830464, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L80] return (__retres4); VAL [\result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464, unknown-#in~e-unknown=0, unknown-#in~m-unknown=1] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, ea=-127, eb=-128, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=-127, m=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L29] COND FALSE !(! m) VAL [e=-127, m=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L35] COND FALSE !(m < 1U << 24U) VAL [e=-127, m=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L57] COND TRUE 1 VAL [e=-127, m=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L59] COND FALSE !(m >= 1U << 25U) VAL [e=-127, m=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L76] m = m & ~ (1U << 24U) VAL [e=-127, m=0, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L77] EXPR e + 128 VAL [e=-127, m=0, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [__retres4=16777216, e=-127, m=0, res=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L80] return (__retres4); VAL [\result=16777216, __retres4=16777216, e=-127, m=0, res=16777216, unknown-#in~e-unknown=-127, unknown-#in~m-unknown=4311744512] [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=16777216, ea=-127, eb=-128, ma=16777216, one=1744830464, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L29] COND FALSE !(! m) VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L35] COND FALSE !(m < 1U << 24U) VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L57] COND TRUE 1 VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L59] COND FALSE !(m >= 1U << 25U) VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L76] m = m & ~ (1U << 24U) VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L77] EXPR e + 128 VAL [e=-128, m=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [__retres4=16777217, e=-128, m=16777217, res=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L80] return (__retres4); VAL [\result=36028797035741185, __retres4=16777217, e=-128, m=16777217, res=16777217, unknown-#in~e-unknown=-128, unknown-#in~m-unknown=36028797035741185] [L241] RET, EXPR base2flt(mb, eb) VAL [a=16777216, base2flt(mb, eb)=36028797035741185, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, zero=0] [L241] b = base2flt(mb, eb) [L242] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; VAL [a=16777216, b=16777217, unknown-#in~a-unknown=16777216, unknown-#in~b-unknown=36028797035741185] [L158] COND TRUE a < b [L159] tmp = a [L160] a = b [L161] b = tmp VAL [a=16777217, b=16777216, tmp=16777216, unknown-#in~a-unknown=16777216, unknown-#in~b-unknown=36028797035741185] [L165] COND FALSE !(! b) VAL [a=16777217, b=16777216, tmp=16777216, unknown-#in~a-unknown=16777216, unknown-#in~b-unknown=36028797035741185] [L171] ma = a & ((1U << 24U) - 1U) VAL [a=16777217, b=16777216, ma=0, tmp=16777216, unknown-#in~a-unknown=16777216, unknown-#in~b-unknown=36028797035741185] [L172] (int )(a >> 24U) - 128 VAL [a=16777217, b=16777216, ma=0, tmp=16777216, unknown-#in~a-unknown=16777216, unknown-#in~b-unknown=36028797035741185] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: 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, 109 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 244.3s, OverallIterations: 31, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 213.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 10154 SdHoareTripleChecker+Valid, 21.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10118 mSDsluCounter, 29970 SdHoareTripleChecker+Invalid, 19.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26480 mSDsCounter, 1264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14540 IncrementalHoareTripleChecker+Invalid, 15807 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1264 mSolverCounterUnsat, 3490 mSDtfsCounter, 14540 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3791 GetRequests, 3114 SyntacticMatches, 3 SemanticMatches, 674 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5918 ImplicationChecksByTransitivity, 196.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=484occurred in iteration=30, InterpolantAutomatonStates: 489, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 30 MinimizatonAttempts, 5883 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 21.8s InterpolantComputationTime, 4176 NumberOfCodeBlocks, 4118 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 5187 ConstructedInterpolants, 0 QuantifiedInterpolants, 20675 SizeOfPredicates, 78 NumberOfNonLiveVariables, 4379 ConjunctsInSsa, 359 ConjunctsInUnsatCore, 64 InterpolantComputations, 18 PerfectInterpolantSequences, 9156/17048 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 03:30:12,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- 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 03:30:14,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:30:14,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:30:14,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:30:14,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:30:14,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:30:14,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:30:14,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:30:14,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:30:14,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:30:14,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:30:14,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:30:14,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:30:14,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:30:14,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:30:14,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:30:14,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:30:14,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:30:14,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:30:14,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:30:14,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:30:14,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:30:14,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:30:14,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:30:14,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:30:14,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:30:14,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:30:14,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:30:14,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:30:14,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:30:14,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:30:14,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:30:14,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:30:14,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:30:14,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:30:14,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:30:14,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:30:14,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:30:14,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:30:14,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:30:14,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:30:14,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2022-11-23 03:30:14,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:30:14,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:30:14,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:30:14,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:30:14,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:30:14,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:30:14,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:30:14,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:30:14,985 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:30:14,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:30:14,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:30:14,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:30:14,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:30:14,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:30:14,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:30:14,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:30:14,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:30:14,989 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:30:14,989 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:30:14,989 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:30:14,989 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:30:14,990 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:30:14,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:30:14,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:30:14,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:30:14,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:30:14,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:30:14,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:30:14,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:30:14,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:30:14,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:30:14,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:30:14,993 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:30:14,994 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:30:14,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:30:14,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:30:14,995 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:30:14,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:30:14,995 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:30:14,996 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2022-11-23 03:30:15,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:30:15,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:30:15,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:30:15,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:30:15,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:30:15,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-23 03:30:18,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:30:19,235 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:30:19,236 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2022-11-23 03:30:19,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data/567247300/9307a2eb329246dabbd1a17025529c0c/FLAG21467f3bf [2022-11-23 03:30:19,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/data/567247300/9307a2eb329246dabbd1a17025529c0c [2022-11-23 03:30:19,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:30:19,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:30:19,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:30:19,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:30:19,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:30:19,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ada0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19, skipping insertion in model container [2022-11-23 03:30:19,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:30:19,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:30:19,479 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_6e3c59a6-8392-409b-9342-3d88655e945b/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-23 03:30:19,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:30:19,583 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:30:19,606 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_6e3c59a6-8392-409b-9342-3d88655e945b/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2022-11-23 03:30:19,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:30:19,668 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:30:19,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19 WrapperNode [2022-11-23 03:30:19,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:30:19,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:30:19,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:30:19,671 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:30:19,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,751 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2022-11-23 03:30:19,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:30:19,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:30:19,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:30:19,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:30:19,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,810 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:30:19,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:30:19,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:30:19,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:30:19,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (1/1) ... [2022-11-23 03:30:19,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:30:19,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:30:19,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:30:19,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:30:19,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:30:19,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 03:30:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-23 03:30:19,915 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-23 03:30:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:30:19,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:30:19,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 03:30:19,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 03:30:20,031 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:30:20,034 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:30:20,521 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:30:20,527 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:30:20,531 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 03:30:20,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:20 BoogieIcfgContainer [2022-11-23 03:30:20,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:30:20,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:30:20,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:30:20,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:30:20,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:30:19" (1/3) ... [2022-11-23 03:30:20,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b512a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:20, skipping insertion in model container [2022-11-23 03:30:20,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:30:19" (2/3) ... [2022-11-23 03:30:20,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b512a48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:30:20, skipping insertion in model container [2022-11-23 03:30:20,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:30:20" (3/3) ... [2022-11-23 03:30:20,546 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2022-11-23 03:30:20,564 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:30:20,564 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-23 03:30:20,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:30:20,626 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=PETRI_NET, 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;@3e2d6033, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:30:20,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-11-23 03:30:20,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 79 states have internal predecessors, (101), 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 03:30:20,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:30:20,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:20,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:20,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:20,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1033814779, now seen corresponding path program 1 times [2022-11-23 03:30:20,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:20,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088261479] [2022-11-23 03:30:20,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:20,658 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 03:30:20,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:20,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:20,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:20,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 03:30:20,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:20,762 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 03:30:20,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:30:20,766 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:20,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088261479] [2022-11-23 03:30:20,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2088261479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:20,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:20,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:30:20,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433498719] [2022-11-23 03:30:20,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:20,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 03:30:20,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:20,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 03:30:20,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 03:30:20,819 INFO L87 Difference]: Start difference. First operand has 86 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 79 states have internal predecessors, (101), 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) 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 03:30:20,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:20,857 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2022-11-23 03:30:20,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 03:30:20,867 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 03:30:20,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:20,872 INFO L225 Difference]: With dead ends: 159 [2022-11-23 03:30:20,873 INFO L226 Difference]: Without dead ends: 57 [2022-11-23 03:30:20,876 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 03:30:20,880 INFO L413 NwaCegarLoop]: 96 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, 96 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 03:30:20,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:30:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-23 03:30:20,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-23 03:30:20,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 51 states have internal predecessors, (59), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:20,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2022-11-23 03:30:20,918 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 9 [2022-11-23 03:30:20,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:20,919 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2022-11-23 03:30:20,919 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 03:30:20,920 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2022-11-23 03:30:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 03:30:20,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:20,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:20,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,134 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:21,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:21,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1034756045, now seen corresponding path program 1 times [2022-11-23 03:30:21,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:21,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732043532] [2022-11-23 03:30:21,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:21,136 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 03:30:21,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:21,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:21,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:30:21,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:21,257 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 03:30:21,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:30:21,258 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:21,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732043532] [2022-11-23 03:30:21,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732043532] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:21,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:21,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:30:21,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606911210] [2022-11-23 03:30:21,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:21,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:30:21,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:21,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:30:21,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:30:21,263 INFO L87 Difference]: Start difference. First operand 57 states and 67 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 03:30:21,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:21,354 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2022-11-23 03:30:21,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:30:21,355 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 03:30:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:21,369 INFO L225 Difference]: With dead ends: 119 [2022-11-23 03:30:21,369 INFO L226 Difference]: Without dead ends: 65 [2022-11-23 03:30:21,370 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 03:30:21,372 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 9 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:21,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 178 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:30:21,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-23 03:30:21,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2022-11-23 03:30:21,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.3125) internal successors, (63), 55 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2022-11-23 03:30:21,385 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 9 [2022-11-23 03:30:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:21,386 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2022-11-23 03:30:21,386 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 03:30:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2022-11-23 03:30:21,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:30:21,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:21,388 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:21,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,601 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:21,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:21,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1755996823, now seen corresponding path program 1 times [2022-11-23 03:30:21,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:21,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730121135] [2022-11-23 03:30:21,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:21,603 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 03:30:21,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:21,604 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:21,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:30:21,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:21,700 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 03:30:21,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:30:21,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:21,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730121135] [2022-11-23 03:30:21,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730121135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:21,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:21,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:30:21,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424658547] [2022-11-23 03:30:21,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:21,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:30:21,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:21,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:30:21,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:30:21,704 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 03:30:21,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:21,806 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2022-11-23 03:30:21,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:30:21,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 16 [2022-11-23 03:30:21,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:21,809 INFO L225 Difference]: With dead ends: 151 [2022-11-23 03:30:21,809 INFO L226 Difference]: Without dead ends: 99 [2022-11-23 03:30:21,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 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 03:30:21,811 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 55 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:21,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 169 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:30:21,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-23 03:30:21,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2022-11-23 03:30:21,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 84 states have internal predecessors, (102), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:21,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2022-11-23 03:30:21,831 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 16 [2022-11-23 03:30:21,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:21,832 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2022-11-23 03:30:21,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 03:30:21,833 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2022-11-23 03:30:21,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 03:30:21,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:21,834 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 03:30:21,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:22,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:22,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1427259253, now seen corresponding path program 1 times [2022-11-23 03:30:22,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:22,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [945379414] [2022-11-23 03:30:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:22,043 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 03:30:22,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:22,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:22,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:30:22,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:22,178 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 03:30:22,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:30:22,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:22,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [945379414] [2022-11-23 03:30:22,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [945379414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:22,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:22,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:30:22,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350377779] [2022-11-23 03:30:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:22,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:30:22,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:22,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:30:22,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:30:22,187 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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 03:30:22,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:22,375 INFO L93 Difference]: Finished difference Result 162 states and 189 transitions. [2022-11-23 03:30:22,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:30:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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 03:30:22,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:22,378 INFO L225 Difference]: With dead ends: 162 [2022-11-23 03:30:22,381 INFO L226 Difference]: Without dead ends: 91 [2022-11-23 03:30:22,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 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 03:30:22,388 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 38 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:22,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 238 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:30:22,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-23 03:30:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 81. [2022-11-23 03:30:22,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 73 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2022-11-23 03:30:22,420 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 21 [2022-11-23 03:30:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:22,421 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2022-11-23 03:30:22,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 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 03:30:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2022-11-23 03:30:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 03:30:22,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:22,424 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:22,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,637 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:22,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:22,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1427150149, now seen corresponding path program 1 times [2022-11-23 03:30:22,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:22,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035251707] [2022-11-23 03:30:22,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:22,639 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 03:30:22,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:22,640 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:22,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:30:22,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:22,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:22,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:23,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:23,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:23,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035251707] [2022-11-23 03:30:23,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035251707] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:23,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:23,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-23 03:30:23,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773799370] [2022-11-23 03:30:23,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:23,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:30:23,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:30:23,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:30:23,006 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:23,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:23,827 INFO L93 Difference]: Finished difference Result 173 states and 209 transitions. [2022-11-23 03:30:23,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:30:23,829 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 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 03:30:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:23,830 INFO L225 Difference]: With dead ends: 173 [2022-11-23 03:30:23,830 INFO L226 Difference]: Without dead ends: 118 [2022-11-23 03:30:23,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-11-23 03:30:23,832 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 190 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:23,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 271 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:30:23,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-23 03:30:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 82. [2022-11-23 03:30:23,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 68 states have (on average 1.25) internal successors, (85), 74 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:23,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2022-11-23 03:30:23,864 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 21 [2022-11-23 03:30:23,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:23,865 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2022-11-23 03:30:23,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:23,865 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2022-11-23 03:30:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 03:30:23,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:23,867 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:23,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:24,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:24,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:24,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash 268685593, now seen corresponding path program 1 times [2022-11-23 03:30:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:24,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [656739646] [2022-11-23 03:30:24,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:24,082 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 03:30:24,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:24,083 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:24,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:24,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:30:24,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:24,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:24,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:24,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [656739646] [2022-11-23 03:30:24,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [656739646] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:24,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:24,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-23 03:30:24,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698384150] [2022-11-23 03:30:24,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:24,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:30:24,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:24,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:30:24,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:30:24,330 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:24,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:24,775 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2022-11-23 03:30:24,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 03:30:24,777 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), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-23 03:30:24,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:24,779 INFO L225 Difference]: With dead ends: 176 [2022-11-23 03:30:24,780 INFO L226 Difference]: Without dead ends: 119 [2022-11-23 03:30:24,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-23 03:30:24,786 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 153 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:24,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 474 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:30:24,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-23 03:30:24,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 100. [2022-11-23 03:30:24,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 92 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:24,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2022-11-23 03:30:24,820 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 26 [2022-11-23 03:30:24,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:24,821 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2022-11-23 03:30:24,821 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), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:24,821 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2022-11-23 03:30:24,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-23 03:30:24,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:24,825 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 03:30:24,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:25,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:25,034 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:25,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:25,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1743264717, now seen corresponding path program 1 times [2022-11-23 03:30:25,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:25,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836721665] [2022-11-23 03:30:25,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:25,035 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 03:30:25,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:25,038 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:25,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:25,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:30:25,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:30:25,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:30:25,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:25,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836721665] [2022-11-23 03:30:25,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836721665] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:25,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:25,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-23 03:30:25,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111282429] [2022-11-23 03:30:25,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:25,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 03:30:25,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 03:30:25,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:30:25,570 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:30:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:26,260 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2022-11-23 03:30:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 03:30:26,261 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2022-11-23 03:30:26,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:26,262 INFO L225 Difference]: With dead ends: 243 [2022-11-23 03:30:26,263 INFO L226 Difference]: Without dead ends: 186 [2022-11-23 03:30:26,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:30:26,264 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 136 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:26,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 348 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:30:26,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-11-23 03:30:26,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 102. [2022-11-23 03:30:26,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 94 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:26,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2022-11-23 03:30:26,299 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 38 [2022-11-23 03:30:26,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:26,301 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2022-11-23 03:30:26,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:30:26,302 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2022-11-23 03:30:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-23 03:30:26,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:26,304 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:26,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:26,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:26,517 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:26,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:26,517 INFO L85 PathProgramCache]: Analyzing trace with hash 171656217, now seen corresponding path program 2 times [2022-11-23 03:30:26,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:26,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661742907] [2022-11-23 03:30:26,518 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:30:26,518 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 03:30:26,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:26,520 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:26,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (9)] Waiting until timeout for monitored process [2022-11-23 03:30:26,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:30:26,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:30:26,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-23 03:30:26,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:26,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:27,142 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:27,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:27,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661742907] [2022-11-23 03:30:27,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661742907] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:27,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:27,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2022-11-23 03:30:27,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414428259] [2022-11-23 03:30:27,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:27,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-23 03:30:27,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:27,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-23 03:30:27,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2022-11-23 03:30:27,146 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:28,180 INFO L93 Difference]: Finished difference Result 234 states and 272 transitions. [2022-11-23 03:30:28,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-23 03:30:28,181 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2022-11-23 03:30:28,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:28,183 INFO L225 Difference]: With dead ends: 234 [2022-11-23 03:30:28,184 INFO L226 Difference]: Without dead ends: 177 [2022-11-23 03:30:28,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=383, Invalid=949, Unknown=0, NotChecked=0, Total=1332 [2022-11-23 03:30:28,186 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 386 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:28,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 814 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:30:28,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-23 03:30:28,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 140. [2022-11-23 03:30:28,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 132 states have internal predecessors, (150), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:28,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2022-11-23 03:30:28,211 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 46 [2022-11-23 03:30:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:28,212 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2022-11-23 03:30:28,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.0) internal successors, (76), 17 states have internal predecessors, (76), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2022-11-23 03:30:28,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 03:30:28,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:28,214 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:28,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (9)] Forceful destruction successful, exit code 0 [2022-11-23 03:30:28,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:28,428 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:28,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:28,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1551167795, now seen corresponding path program 2 times [2022-11-23 03:30:28,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:28,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814457893] [2022-11-23 03:30:28,429 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:30:28,430 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 03:30:28,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:28,431 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:28,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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)] Waiting until timeout for monitored process [2022-11-23 03:30:28,474 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:30:28,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:30:28,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 03:30:28,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:28,500 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2022-11-23 03:30:28,500 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:30:28,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:28,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814457893] [2022-11-23 03:30:28,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814457893] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:30:28,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:30:28,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:30:28,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185167356] [2022-11-23 03:30:28,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:30:28,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:30:28,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:28,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:30:28,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:30:28,504 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 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 03:30:28,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:28,552 INFO L93 Difference]: Finished difference Result 146 states and 165 transitions. [2022-11-23 03:30:28,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:30:28,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 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 58 [2022-11-23 03:30:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:28,557 INFO L225 Difference]: With dead ends: 146 [2022-11-23 03:30:28,557 INFO L226 Difference]: Without dead ends: 145 [2022-11-23 03:30:28,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 03:30:28,560 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 2 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 122 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 03:30:28,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 122 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:30:28,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-23 03:30:28,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 139. [2022-11-23 03:30:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 126 states have (on average 1.1825396825396826) internal successors, (149), 131 states have internal predecessors, (149), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 157 transitions. [2022-11-23 03:30:28,587 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 157 transitions. Word has length 58 [2022-11-23 03:30:28,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:28,588 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 157 transitions. [2022-11-23 03:30:28,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 1 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 03:30:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 157 transitions. [2022-11-23 03:30:28,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 03:30:28,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:28,594 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:28,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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)] Forceful destruction successful, exit code 0 [2022-11-23 03:30:28,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:28,805 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:28,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1551100269, now seen corresponding path program 1 times [2022-11-23 03:30:28,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:28,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789747790] [2022-11-23 03:30:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:30:28,807 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 03:30:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:28,810 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:28,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:30:28,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:30:28,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:29,209 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:30:29,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:30:30,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:30,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789747790] [2022-11-23 03:30:30,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789747790] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:30,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:30,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2022-11-23 03:30:30,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065577056] [2022-11-23 03:30:30,113 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:30,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 03:30:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:30,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 03:30:30,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:30:30,115 INFO L87 Difference]: Start difference. First operand 139 states and 157 transitions. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:30:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:32,685 INFO L93 Difference]: Finished difference Result 384 states and 469 transitions. [2022-11-23 03:30:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-23 03:30:32,688 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2022-11-23 03:30:32,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:32,690 INFO L225 Difference]: With dead ends: 384 [2022-11-23 03:30:32,690 INFO L226 Difference]: Without dead ends: 328 [2022-11-23 03:30:32,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=343, Invalid=649, Unknown=0, NotChecked=0, Total=992 [2022-11-23 03:30:32,691 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 448 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:32,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 788 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 03:30:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-23 03:30:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 141. [2022-11-23 03:30:32,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 128 states have (on average 1.125) internal successors, (144), 133 states have internal predecessors, (144), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:32,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2022-11-23 03:30:32,733 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 58 [2022-11-23 03:30:32,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:32,733 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2022-11-23 03:30:32,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:30:32,734 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2022-11-23 03:30:32,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-23 03:30:32,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:32,736 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:32,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:32,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:32,959 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:32,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:32,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1547458023, now seen corresponding path program 3 times [2022-11-23 03:30:32,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:32,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1230151957] [2022-11-23 03:30:32,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:30:32,961 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 03:30:32,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:32,962 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:32,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:33,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-11-23 03:30:33,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:30:33,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 03:30:33,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:33,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:34,662 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 2 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:34,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:34,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1230151957] [2022-11-23 03:30:34,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1230151957] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:34,662 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:34,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 35 [2022-11-23 03:30:34,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034275936] [2022-11-23 03:30:34,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:34,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-23 03:30:34,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:34,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-23 03:30:34,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=886, Unknown=0, NotChecked=0, Total=1190 [2022-11-23 03:30:34,665 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:44,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:44,254 INFO L93 Difference]: Finished difference Result 487 states and 585 transitions. [2022-11-23 03:30:44,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-11-23 03:30:44,255 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-11-23 03:30:44,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:44,257 INFO L225 Difference]: With dead ends: 487 [2022-11-23 03:30:44,258 INFO L226 Difference]: Without dead ends: 431 [2022-11-23 03:30:44,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2296 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=2711, Invalid=7189, Unknown=0, NotChecked=0, Total=9900 [2022-11-23 03:30:44,263 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 936 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:44,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 2993 Invalid, 1782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-23 03:30:44,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-23 03:30:44,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 219. [2022-11-23 03:30:44,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 206 states have (on average 1.1553398058252426) internal successors, (238), 211 states have internal predecessors, (238), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 246 transitions. [2022-11-23 03:30:44,299 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 246 transitions. Word has length 86 [2022-11-23 03:30:44,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:44,299 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 246 transitions. [2022-11-23 03:30:44,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 4.457142857142857) internal successors, (156), 33 states have internal predecessors, (156), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:30:44,300 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 246 transitions. [2022-11-23 03:30:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-11-23 03:30:44,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:44,301 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:44,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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)] Ended with exit code 0 [2022-11-23 03:30:44,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:44,513 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:44,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1705737363, now seen corresponding path program 2 times [2022-11-23 03:30:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:44,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156611614] [2022-11-23 03:30:44,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:30:44,514 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 03:30:44,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:44,515 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:44,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:44,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:30:44,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:30:44,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:30:44,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:45,346 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:30:45,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:30:47,726 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 03:30:47,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:30:47,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156611614] [2022-11-23 03:30:47,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156611614] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:30:47,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:30:47,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2022-11-23 03:30:47,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231319815] [2022-11-23 03:30:47,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:30:47,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-23 03:30:47,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:30:47,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-23 03:30:47,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 03:30:47,730 INFO L87 Difference]: Start difference. First operand 219 states and 246 transitions. Second operand has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:30:58,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:30:58,077 INFO L93 Difference]: Finished difference Result 678 states and 837 transitions. [2022-11-23 03:30:58,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-11-23 03:30:58,081 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 98 [2022-11-23 03:30:58,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:30:58,085 INFO L225 Difference]: With dead ends: 678 [2022-11-23 03:30:58,085 INFO L226 Difference]: Without dead ends: 622 [2022-11-23 03:30:58,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=1327, Invalid=2705, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 03:30:58,087 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 1011 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 2417 SdHoareTripleChecker+Invalid, 2909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:30:58,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 2417 Invalid, 2909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-23 03:30:58,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2022-11-23 03:30:58,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 221. [2022-11-23 03:30:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 208 states have (on average 1.0817307692307692) internal successors, (225), 213 states have internal predecessors, (225), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:30:58,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 233 transitions. [2022-11-23 03:30:58,148 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 233 transitions. Word has length 98 [2022-11-23 03:30:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:30:58,148 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 233 transitions. [2022-11-23 03:30:58,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.0) internal successors, (170), 34 states have internal predecessors, (170), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-23 03:30:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 233 transitions. [2022-11-23 03:30:58,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-23 03:30:58,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:30:58,157 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:30:58,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:58,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:58,370 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:30:58,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:30:58,371 INFO L85 PathProgramCache]: Analyzing trace with hash 429521305, now seen corresponding path program 4 times [2022-11-23 03:30:58,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:30:58,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543574926] [2022-11-23 03:30:58,372 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-23 03:30:58,372 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 03:30:58,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:30:58,373 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:58,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:30:58,454 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-23 03:30:58,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:30:58,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 03:30:58,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:30:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:30:59,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:31:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1382 backedges. 2 proven. 1380 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:31:02,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:31:02,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543574926] [2022-11-23 03:31:02,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543574926] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:31:02,840 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:31:02,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 53 [2022-11-23 03:31:02,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036908721] [2022-11-23 03:31:02,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:31:02,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-23 03:31:02,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:31:02,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-23 03:31:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2022-11-23 03:31:02,843 INFO L87 Difference]: Start difference. First operand 221 states and 233 transitions. Second operand has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:31:57,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:57,874 INFO L93 Difference]: Finished difference Result 457 states and 523 transitions. [2022-11-23 03:31:57,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-11-23 03:31:57,876 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 136 [2022-11-23 03:31:57,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:57,879 INFO L225 Difference]: With dead ends: 457 [2022-11-23 03:31:57,879 INFO L226 Difference]: Without dead ends: 456 [2022-11-23 03:31:57,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2112 ImplicationChecksByTransitivity, 52.1s TimeCoverageRelationStatistics Valid=4535, Invalid=12235, Unknown=0, NotChecked=0, Total=16770 [2022-11-23 03:31:57,884 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 1116 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 3979 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 3979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:57,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 4140 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 3979 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-23 03:31:57,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-23 03:31:57,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 339. [2022-11-23 03:31:57,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 326 states have (on average 1.1901840490797546) internal successors, (388), 331 states have internal predecessors, (388), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:31:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 396 transitions. [2022-11-23 03:31:57,991 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 396 transitions. Word has length 136 [2022-11-23 03:31:57,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:57,991 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 396 transitions. [2022-11-23 03:31:57,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.886792452830188) internal successors, (259), 52 states have internal predecessors, (259), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:31:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 396 transitions. [2022-11-23 03:31:57,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-23 03:31:57,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:57,994 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:58,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:58,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:58,202 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:31:58,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:58,202 INFO L85 PathProgramCache]: Analyzing trace with hash -2109656538, now seen corresponding path program 1 times [2022-11-23 03:31:58,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:31:58,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195955657] [2022-11-23 03:31:58,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:58,203 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 03:31:58,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:31:58,204 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:58,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:58,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:31:58,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:31:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-23 03:31:58,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:31:58,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:31:58,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195955657] [2022-11-23 03:31:58,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195955657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:31:58,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:31:58,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:31:58,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146784798] [2022-11-23 03:31:58,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:31:58,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:31:58,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:31:58,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:31:58,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:31:58,380 INFO L87 Difference]: Start difference. First operand 339 states and 396 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 03:31:59,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:31:59,411 INFO L93 Difference]: Finished difference Result 351 states and 411 transitions. [2022-11-23 03:31:59,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:31:59,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 149 [2022-11-23 03:31:59,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:31:59,414 INFO L225 Difference]: With dead ends: 351 [2022-11-23 03:31:59,414 INFO L226 Difference]: Without dead ends: 350 [2022-11-23 03:31:59,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 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 03:31:59,415 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 52 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-23 03:31:59,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 130 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-23 03:31:59,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2022-11-23 03:31:59,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 341. [2022-11-23 03:31:59,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 328 states have (on average 1.1920731707317074) internal successors, (391), 333 states have internal predecessors, (391), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:31:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 399 transitions. [2022-11-23 03:31:59,547 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 399 transitions. Word has length 149 [2022-11-23 03:31:59,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:31:59,548 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 399 transitions. [2022-11-23 03:31:59,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 03:31:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 399 transitions. [2022-11-23 03:31:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-23 03:31:59,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:31:59,550 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 23, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:31:59,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:59,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:59,769 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:31:59,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:31:59,769 INFO L85 PathProgramCache]: Analyzing trace with hash -679741690, now seen corresponding path program 1 times [2022-11-23 03:31:59,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:31:59,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681577120] [2022-11-23 03:31:59,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:31:59,770 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 03:31:59,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:31:59,772 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:59,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:31:59,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:31:59,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-23 03:31:59,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:01,324 INFO L134 CoverageAnalysis]: Checked inductivity of 1513 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2022-11-23 03:32:01,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:01,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:01,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681577120] [2022-11-23 03:32:01,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681577120] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:01,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:01,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:32:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534538437] [2022-11-23 03:32:01,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:01,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:32:01,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:32:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:01,326 INFO L87 Difference]: Start difference. First operand 341 states and 399 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 03:32:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:05,633 INFO L93 Difference]: Finished difference Result 356 states and 418 transitions. [2022-11-23 03:32:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:32:05,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 152 [2022-11-23 03:32:05,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:05,635 INFO L225 Difference]: With dead ends: 356 [2022-11-23 03:32:05,636 INFO L226 Difference]: Without dead ends: 355 [2022-11-23 03:32:05,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:32:05,637 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 65 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:05,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 195 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 03:32:05,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-11-23 03:32:05,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 220. [2022-11-23 03:32:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 208 states have (on average 1.0721153846153846) internal successors, (223), 212 states have internal predecessors, (223), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:32:05,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 231 transitions. [2022-11-23 03:32:05,687 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 231 transitions. Word has length 152 [2022-11-23 03:32:05,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:05,688 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 231 transitions. [2022-11-23 03:32:05,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 03:32:05,688 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 231 transitions. [2022-11-23 03:32:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-23 03:32:05,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:05,690 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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, 1] [2022-11-23 03:32:05,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:05,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:05,903 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:05,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash 765853977, now seen corresponding path program 1 times [2022-11-23 03:32:05,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:05,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233319224] [2022-11-23 03:32:05,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:05,904 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 03:32:05,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:05,905 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:05,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (17)] Waiting until timeout for monitored process [2022-11-23 03:32:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:06,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:32:06,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:06,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2022-11-23 03:32:06,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:06,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:06,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233319224] [2022-11-23 03:32:06,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233319224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:06,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:06,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:32:06,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394913038] [2022-11-23 03:32:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:06,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:32:06,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:32:06,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:32:06,055 INFO L87 Difference]: Start difference. First operand 220 states and 231 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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 03:32:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:06,176 INFO L93 Difference]: Finished difference Result 253 states and 266 transitions. [2022-11-23 03:32:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:32:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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 161 [2022-11-23 03:32:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:06,179 INFO L225 Difference]: With dead ends: 253 [2022-11-23 03:32:06,179 INFO L226 Difference]: Without dead ends: 226 [2022-11-23 03:32:06,180 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 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 03:32:06,180 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 3 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:06,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 295 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:06,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-11-23 03:32:06,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 223. [2022-11-23 03:32:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 210 states have (on average 1.0714285714285714) internal successors, (225), 215 states have internal predecessors, (225), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 03:32:06,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 234 transitions. [2022-11-23 03:32:06,248 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 234 transitions. Word has length 161 [2022-11-23 03:32:06,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:06,248 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 234 transitions. [2022-11-23 03:32:06,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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 03:32:06,249 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 234 transitions. [2022-11-23 03:32:06,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-11-23 03:32:06,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:06,251 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:06,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (17)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:06,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:06,464 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:06,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:06,465 INFO L85 PathProgramCache]: Analyzing trace with hash 765465224, now seen corresponding path program 1 times [2022-11-23 03:32:06,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:06,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359125099] [2022-11-23 03:32:06,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:06,466 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 03:32:06,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:06,467 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:06,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (18)] Waiting until timeout for monitored process [2022-11-23 03:32:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:06,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 03:32:06,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2022-11-23 03:32:06,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:06,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2022-11-23 03:32:06,754 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:06,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359125099] [2022-11-23 03:32:06,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1359125099] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:06,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-23 03:32:06,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2022-11-23 03:32:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098055597] [2022-11-23 03:32:06,755 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:32:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:06,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:32:06,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:32:06,756 INFO L87 Difference]: Start difference. First operand 223 states and 234 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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 03:32:06,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:06,949 INFO L93 Difference]: Finished difference Result 255 states and 268 transitions. [2022-11-23 03:32:06,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:32:06,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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 165 [2022-11-23 03:32:06,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:06,951 INFO L225 Difference]: With dead ends: 255 [2022-11-23 03:32:06,951 INFO L226 Difference]: Without dead ends: 223 [2022-11-23 03:32:06,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:06,952 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 6 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:06,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 423 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-23 03:32:07,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 220. [2022-11-23 03:32:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 208 states have (on average 1.0625) internal successors, (221), 212 states have internal predecessors, (221), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:32:07,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 229 transitions. [2022-11-23 03:32:07,003 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 229 transitions. Word has length 165 [2022-11-23 03:32:07,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:07,004 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 229 transitions. [2022-11-23 03:32:07,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 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 03:32:07,004 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 229 transitions. [2022-11-23 03:32:07,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-23 03:32:07,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:07,007 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:07,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (18)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:07,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:07,221 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:07,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:07,221 INFO L85 PathProgramCache]: Analyzing trace with hash -644702791, now seen corresponding path program 2 times [2022-11-23 03:32:07,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:07,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613889876] [2022-11-23 03:32:07,222 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:32:07,222 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 03:32:07,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:07,224 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:07,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:07,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-23 03:32:07,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:32:07,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:07,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:07,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2022-11-23 03:32:07,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:07,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:07,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613889876] [2022-11-23 03:32:07,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613889876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:07,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:07,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:32:07,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836040783] [2022-11-23 03:32:07,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:07,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:07,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:07,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:07,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:32:07,366 INFO L87 Difference]: Start difference. First operand 220 states and 229 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:07,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:07,654 INFO L93 Difference]: Finished difference Result 220 states and 229 transitions. [2022-11-23 03:32:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:32:07,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 169 [2022-11-23 03:32:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:07,657 INFO L225 Difference]: With dead ends: 220 [2022-11-23 03:32:07,657 INFO L226 Difference]: Without dead ends: 218 [2022-11-23 03:32:07,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 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 03:32:07,658 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:07,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 151 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-23 03:32:07,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-11-23 03:32:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 208 states have (on average 1.0528846153846154) internal successors, (219), 210 states have internal predecessors, (219), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:32:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 227 transitions. [2022-11-23 03:32:07,718 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 227 transitions. Word has length 169 [2022-11-23 03:32:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:07,718 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 227 transitions. [2022-11-23 03:32:07,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 227 transitions. [2022-11-23 03:32:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-23 03:32:07,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:07,722 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:07,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:07,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:07,937 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash 753038131, now seen corresponding path program 1 times [2022-11-23 03:32:07,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:07,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452601382] [2022-11-23 03:32:07,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:07,938 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 03:32:07,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:07,939 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:07,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-23 03:32:08,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:08,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-11-23 03:32:08,154 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:08,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:08,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452601382] [2022-11-23 03:32:08,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452601382] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:08,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:08,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 03:32:08,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903913527] [2022-11-23 03:32:08,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:08,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 03:32:08,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:08,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 03:32:08,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 03:32:08,157 INFO L87 Difference]: Start difference. First operand 218 states and 227 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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 03:32:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:08,372 INFO L93 Difference]: Finished difference Result 293 states and 307 transitions. [2022-11-23 03:32:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 03:32:08,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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 172 [2022-11-23 03:32:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:08,374 INFO L225 Difference]: With dead ends: 293 [2022-11-23 03:32:08,374 INFO L226 Difference]: Without dead ends: 271 [2022-11-23 03:32:08,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 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 03:32:08,375 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 74 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:08,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 401 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-23 03:32:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 225. [2022-11-23 03:32:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 213 states have (on average 1.051643192488263) internal successors, (224), 215 states have internal predecessors, (224), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-23 03:32:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 237 transitions. [2022-11-23 03:32:08,431 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 237 transitions. Word has length 172 [2022-11-23 03:32:08,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:08,432 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 237 transitions. [2022-11-23 03:32:08,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 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 03:32:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 237 transitions. [2022-11-23 03:32:08,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-23 03:32:08,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:08,435 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:08,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:08,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:08,656 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:08,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:08,657 INFO L85 PathProgramCache]: Analyzing trace with hash 360011121, now seen corresponding path program 1 times [2022-11-23 03:32:08,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:08,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917951760] [2022-11-23 03:32:08,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:08,658 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 03:32:08,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:08,659 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:08,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (21)] Waiting until timeout for monitored process [2022-11-23 03:32:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:08,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 03:32:08,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:09,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-11-23 03:32:09,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:09,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:09,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917951760] [2022-11-23 03:32:09,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917951760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:09,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:09,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 03:32:09,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048625886] [2022-11-23 03:32:09,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:09,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 03:32:09,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:09,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 03:32:09,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-11-23 03:32:09,016 INFO L87 Difference]: Start difference. First operand 225 states and 237 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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 03:32:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:09,531 INFO L93 Difference]: Finished difference Result 271 states and 284 transitions. [2022-11-23 03:32:09,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 03:32:09,532 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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 172 [2022-11-23 03:32:09,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:09,533 INFO L225 Difference]: With dead ends: 271 [2022-11-23 03:32:09,533 INFO L226 Difference]: Without dead ends: 270 [2022-11-23 03:32:09,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:32:09,535 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 71 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:09,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 516 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 03:32:09,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-23 03:32:09,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 234. [2022-11-23 03:32:09,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 222 states have (on average 1.0495495495495495) internal successors, (233), 224 states have internal predecessors, (233), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-23 03:32:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 246 transitions. [2022-11-23 03:32:09,606 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 246 transitions. Word has length 172 [2022-11-23 03:32:09,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:09,607 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 246 transitions. [2022-11-23 03:32:09,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 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 03:32:09,607 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 246 transitions. [2022-11-23 03:32:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-23 03:32:09,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:09,610 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2022-11-23 03:32:09,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (21)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:09,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:09,823 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:09,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:09,824 INFO L85 PathProgramCache]: Analyzing trace with hash -770221667, now seen corresponding path program 1 times [2022-11-23 03:32:09,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:09,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097596232] [2022-11-23 03:32:09,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:09,825 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 03:32:09,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:09,825 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:09,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (22)] Waiting until timeout for monitored process [2022-11-23 03:32:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:09,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 03:32:09,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-23 03:32:10,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:10,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2022-11-23 03:32:10,207 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:10,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097596232] [2022-11-23 03:32:10,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097596232] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:10,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 03:32:10,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-11-23 03:32:10,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689213083] [2022-11-23 03:32:10,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:10,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:32:10,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:10,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:32:10,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 03:32:10,213 INFO L87 Difference]: Start difference. First operand 234 states and 246 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:10,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:10,584 INFO L93 Difference]: Finished difference Result 238 states and 249 transitions. [2022-11-23 03:32:10,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:10,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 174 [2022-11-23 03:32:10,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:10,587 INFO L225 Difference]: With dead ends: 238 [2022-11-23 03:32:10,587 INFO L226 Difference]: Without dead ends: 236 [2022-11-23 03:32:10,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:10,588 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:10,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 178 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:10,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-23 03:32:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 223. [2022-11-23 03:32:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.0422535211267605) internal successors, (222), 213 states have internal predecessors, (222), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-23 03:32:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 235 transitions. [2022-11-23 03:32:10,641 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 235 transitions. Word has length 174 [2022-11-23 03:32:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:10,642 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 235 transitions. [2022-11-23 03:32:10,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:10,642 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 235 transitions. [2022-11-23 03:32:10,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-23 03:32:10,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:10,644 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:10,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (22)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:10,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:10,857 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash 948465498, now seen corresponding path program 1 times [2022-11-23 03:32:10,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:10,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464720777] [2022-11-23 03:32:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:10,858 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 03:32:10,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:10,860 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:10,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (23)] Waiting until timeout for monitored process [2022-11-23 03:32:11,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:11,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-23 03:32:11,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2022-11-23 03:32:11,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:11,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:11,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464720777] [2022-11-23 03:32:11,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464720777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:11,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:11,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 03:32:11,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298981463] [2022-11-23 03:32:11,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:11,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 03:32:11,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:11,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 03:32:11,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-23 03:32:11,288 INFO L87 Difference]: Start difference. First operand 223 states and 235 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 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 03:32:12,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:12,062 INFO L93 Difference]: Finished difference Result 265 states and 278 transitions. [2022-11-23 03:32:12,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:32:12,066 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 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 178 [2022-11-23 03:32:12,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:12,068 INFO L225 Difference]: With dead ends: 265 [2022-11-23 03:32:12,068 INFO L226 Difference]: Without dead ends: 243 [2022-11-23 03:32:12,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2022-11-23 03:32:12,069 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 45 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:12,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 622 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:32:12,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-23 03:32:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 221. [2022-11-23 03:32:12,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 211 states have (on average 1.042654028436019) internal successors, (220), 212 states have internal predecessors, (220), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-23 03:32:12,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 232 transitions. [2022-11-23 03:32:12,147 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 232 transitions. Word has length 178 [2022-11-23 03:32:12,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:12,148 INFO L495 AbstractCegarLoop]: Abstraction has 221 states and 232 transitions. [2022-11-23 03:32:12,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 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 03:32:12,149 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 232 transitions. [2022-11-23 03:32:12,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-23 03:32:12,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:12,150 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:12,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (23)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:12,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:12,365 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:12,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 606708358, now seen corresponding path program 1 times [2022-11-23 03:32:12,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:12,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176666982] [2022-11-23 03:32:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:12,366 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 03:32:12,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:12,368 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:12,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (24)] Waiting until timeout for monitored process [2022-11-23 03:32:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:12,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-23 03:32:12,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-23 03:32:12,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:13,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:13,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176666982] [2022-11-23 03:32:13,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176666982] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:32:13,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [110337628] [2022-11-23 03:32:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:13,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 03:32:13,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/cvc4 [2022-11-23 03:32:13,071 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 03:32:13,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2022-11-23 03:32:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:13,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:32:13,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-23 03:32:13,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:32:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-11-23 03:32:13,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [110337628] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:32:13,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:32:13,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2022-11-23 03:32:13,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750266673] [2022-11-23 03:32:13,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:32:13,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:32:13,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:13,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:32:13,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-23 03:32:13,362 INFO L87 Difference]: Start difference. First operand 221 states and 232 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 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 03:32:13,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:13,540 INFO L93 Difference]: Finished difference Result 263 states and 275 transitions. [2022-11-23 03:32:13,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:32:13,541 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 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 180 [2022-11-23 03:32:13,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:13,543 INFO L225 Difference]: With dead ends: 263 [2022-11-23 03:32:13,543 INFO L226 Difference]: Without dead ends: 243 [2022-11-23 03:32:13,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 543 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:32:13,544 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 45 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:13,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 413 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:13,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2022-11-23 03:32:13,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 223. [2022-11-23 03:32:13,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.0422535211267605) internal successors, (222), 213 states have internal predecessors, (222), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-23 03:32:13,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 234 transitions. [2022-11-23 03:32:13,621 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 234 transitions. Word has length 180 [2022-11-23 03:32:13,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:13,621 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 234 transitions. [2022-11-23 03:32:13,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 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 03:32:13,622 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 234 transitions. [2022-11-23 03:32:13,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-23 03:32:13,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:13,624 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:13,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (24)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:13,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:14,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/cvc4 --incremental --print-success --lang smt [2022-11-23 03:32:14,037 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:14,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:14,037 INFO L85 PathProgramCache]: Analyzing trace with hash -414359996, now seen corresponding path program 1 times [2022-11-23 03:32:14,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:14,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362252839] [2022-11-23 03:32:14,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:14,038 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 03:32:14,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:14,039 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:14,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (26)] Waiting until timeout for monitored process [2022-11-23 03:32:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 03:32:14,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2022-11-23 03:32:14,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:14,247 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:14,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362252839] [2022-11-23 03:32:14,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362252839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:14,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:14,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:32:14,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106965085] [2022-11-23 03:32:14,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:14,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:14,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:14,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:14,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:32:14,249 INFO L87 Difference]: Start difference. First operand 223 states and 234 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:14,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:14,447 INFO L93 Difference]: Finished difference Result 227 states and 237 transitions. [2022-11-23 03:32:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:32:14,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 180 [2022-11-23 03:32:14,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:14,449 INFO L225 Difference]: With dead ends: 227 [2022-11-23 03:32:14,450 INFO L226 Difference]: Without dead ends: 223 [2022-11-23 03:32:14,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 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 03:32:14,451 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 16 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:14,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 96 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:32:14,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-23 03:32:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2022-11-23 03:32:14,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 213 states have (on average 1.0375586854460095) internal successors, (221), 213 states have internal predecessors, (221), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-23 03:32:14,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 233 transitions. [2022-11-23 03:32:14,506 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 233 transitions. Word has length 180 [2022-11-23 03:32:14,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:14,506 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 233 transitions. [2022-11-23 03:32:14,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:14,507 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 233 transitions. [2022-11-23 03:32:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-23 03:32:14,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:32:14,510 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:32:14,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (26)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:14,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:14,723 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-11-23 03:32:14,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:32:14,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1691487341, now seen corresponding path program 1 times [2022-11-23 03:32:14,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:32:14,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1875269341] [2022-11-23 03:32:14,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:32:14,724 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 03:32:14,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:32:14,725 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:14,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (27)] Waiting until timeout for monitored process [2022-11-23 03:32:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:32:14,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 03:32:14,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:32:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2022-11-23 03:32:14,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 03:32:14,918 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 03:32:14,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1875269341] [2022-11-23 03:32:14,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1875269341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:32:14,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:32:14,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:32:14,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815237615] [2022-11-23 03:32:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:32:14,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:32:14,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 03:32:14,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:32:14,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:32:14,920 INFO L87 Difference]: Start difference. First operand 223 states and 233 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:32:15,089 INFO L93 Difference]: Finished difference Result 223 states and 233 transitions. [2022-11-23 03:32:15,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 03:32:15,090 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2022-11-23 03:32:15,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:32:15,091 INFO L225 Difference]: With dead ends: 223 [2022-11-23 03:32:15,091 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 03:32:15,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 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 03:32:15,092 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:32:15,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 135 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:32:15,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 03:32:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 03:32:15,094 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 03:32:15,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:32:15,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2022-11-23 03:32:15,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:32:15,094 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:32:15,094 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 03:32:15,094 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:32:15,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 03:32:15,096 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2022-11-23 03:32:15,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2022-11-23 03:32:15,097 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2022-11-23 03:32:15,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2022-11-23 03:32:15,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2022-11-23 03:32:15,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2022-11-23 03:32:15,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2022-11-23 03:32:15,098 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2022-11-23 03:32:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2022-11-23 03:32:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2022-11-23 03:32:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2022-11-23 03:32:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2022-11-23 03:32:15,099 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2022-11-23 03:32:15,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2022-11-23 03:32:15,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2022-11-23 03:32:15,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2022-11-23 03:32:15,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2022-11-23 03:32:15,100 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2022-11-23 03:32:15,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 (27)] Forceful destruction successful, exit code 0 [2022-11-23 03:32:15,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e3c59a6-8392-409b-9342-3d88655e945b/bin/uautomizer-QkZJyEgLgS/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 03:32:15,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.