./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro --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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- 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-8393723 [2022-11-18 19:46:54,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:46:54,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:46:54,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:46:54,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:46:54,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:46:54,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:46:54,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:46:54,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:46:54,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:46:54,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:46:54,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:46:54,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:46:54,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:46:54,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:46:54,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:46:54,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:46:54,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:46:54,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:46:54,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:46:54,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:46:54,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:46:54,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:46:54,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:46:54,433 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:46:54,433 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:46:54,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:46:54,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:46:54,436 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:46:54,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:46:54,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:46:54,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:46:54,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:46:54,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:46:54,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:46:54,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:46:54,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:46:54,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:46:54,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:46:54,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:46:54,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:46:54,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 19:46:54,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:46:54,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:46:54,480 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:46:54,480 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:46:54,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:46:54,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:46:54,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:46:54,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:46:54,482 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:46:54,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:46:54,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:46:54,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:46:54,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:46:54,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:46:54,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:46:54,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:46:54,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:46:54,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:46:54,485 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:46:54,485 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:46:54,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:46:54,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:46:54,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:46:54,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:46:54,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:46:54,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:46:54,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:46:54,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:46:54,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:46:54,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:46:54,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:46:54,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:46:54,489 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:46:54,489 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:46:54,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:46:54,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2022-11-18 19:46:54,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:46:54,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:46:54,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:46:54,837 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:46:54,838 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:46:54,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-18 19:46:54,920 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/data/fb26fb08a/94d11ba8d98c4a6980e10c733584863d/FLAG797634bcb [2022-11-18 19:46:55,509 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:46:55,513 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2022-11-18 19:46:55,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/data/fb26fb08a/94d11ba8d98c4a6980e10c733584863d/FLAG797634bcb [2022-11-18 19:46:55,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/data/fb26fb08a/94d11ba8d98c4a6980e10c733584863d [2022-11-18 19:46:55,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:46:55,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:46:55,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:46:55,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:46:55,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:46:55,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:46:55" (1/1) ... [2022-11-18 19:46:55,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ede9e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:55, skipping insertion in model container [2022-11-18 19:46:55,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:46:55" (1/1) ... [2022-11-18 19:46:55,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:46:55,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:46:56,150 WARN L234 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_b07c28a8-85b9-4874-acfc-401b6878840f/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-18 19:46:56,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:46:56,252 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:46:56,268 WARN L234 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_b07c28a8-85b9-4874-acfc-401b6878840f/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2022-11-18 19:46:56,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:46:56,311 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:46:56,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56 WrapperNode [2022-11-18 19:46:56,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:46:56,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:46:56,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:46:56,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:46:56,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,372 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 164 [2022-11-18 19:46:56,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:46:56,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:46:56,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:46:56,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:46:56,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:46:56,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:46:56,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:46:56,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:46:56,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (1/1) ... [2022-11-18 19:46:56,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:46:56,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:56,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:46:56,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:46:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:46:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:46:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-18 19:46:56,490 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-18 19:46:56,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:46:56,491 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 19:46:56,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 19:46:56,571 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:46:56,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:46:57,124 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:46:57,132 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:46:57,133 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:46:57,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:57 BoogieIcfgContainer [2022-11-18 19:46:57,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:46:57,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:46:57,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:46:57,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:46:57,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:46:55" (1/3) ... [2022-11-18 19:46:57,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1330d1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:57, skipping insertion in model container [2022-11-18 19:46:57,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:46:56" (2/3) ... [2022-11-18 19:46:57,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1330d1cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:46:57, skipping insertion in model container [2022-11-18 19:46:57,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:57" (3/3) ... [2022-11-18 19:46:57,146 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2022-11-18 19:46:57,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:46:57,167 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-18 19:46:57,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:46:57,247 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;@2da87e43, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:46:57,247 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 19:46:57,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 76 states have (on average 1.7236842105263157) internal successors, (131), 93 states have internal predecessors, (131), 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) [2022-11-18 19:46:57,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:46:57,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:57,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:57,262 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:57,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash 854887011, now seen corresponding path program 1 times [2022-11-18 19:46:57,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:57,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125403485] [2022-11-18 19:46:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:57,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:57,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:57,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:57,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125403485] [2022-11-18 19:46:57,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125403485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:57,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:57,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:46:57,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162180836] [2022-11-18 19:46:57,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:57,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:46:57,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:57,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:46:57,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:46:57,544 INFO L87 Difference]: Start difference. First operand has 100 states, 76 states have (on average 1.7236842105263157) internal successors, (131), 93 states have internal predecessors, (131), 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, 2 states have (on average 4.0) 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) [2022-11-18 19:46:57,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:57,603 INFO L93 Difference]: Finished difference Result 195 states and 283 transitions. [2022-11-18 19:46:57,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:46:57,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) 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 [2022-11-18 19:46:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:57,620 INFO L225 Difference]: With dead ends: 195 [2022-11-18 19:46:57,621 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 19:46:57,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:46:57,630 INFO L413 NwaCegarLoop]: 132 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, 132 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 [2022-11-18 19:46:57,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:46:57,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 19:46:57,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-18 19:46:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 56 states have (on average 1.5714285714285714) internal successors, (88), 69 states have internal predecessors, (88), 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) [2022-11-18 19:46:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2022-11-18 19:46:57,694 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 9 [2022-11-18 19:46:57,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:57,694 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2022-11-18 19:46:57,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) 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) [2022-11-18 19:46:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2022-11-18 19:46:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:46:57,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:57,697 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:57,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:46:57,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:57,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash 853945673, now seen corresponding path program 1 times [2022-11-18 19:46:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:57,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191805311] [2022-11-18 19:46:57,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:57,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:57,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:57,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191805311] [2022-11-18 19:46:57,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191805311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:57,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:57,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:57,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978115097] [2022-11-18 19:46:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:57,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:57,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:57,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:57,865 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. 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) [2022-11-18 19:46:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:58,014 INFO L93 Difference]: Finished difference Result 195 states and 261 transitions. [2022-11-18 19:46:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:58,015 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 [2022-11-18 19:46:58,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:58,018 INFO L225 Difference]: With dead ends: 195 [2022-11-18 19:46:58,018 INFO L226 Difference]: Without dead ends: 123 [2022-11-18 19:46:58,019 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 [2022-11-18 19:46:58,021 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 80 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 244 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 [2022-11-18 19:46:58,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 244 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-11-18 19:46:58,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 113. [2022-11-18 19:46:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 93 states have (on average 1.5591397849462365) internal successors, (145), 106 states have internal predecessors, (145), 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) [2022-11-18 19:46:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 153 transitions. [2022-11-18 19:46:58,043 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 153 transitions. Word has length 9 [2022-11-18 19:46:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:58,043 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 153 transitions. [2022-11-18 19:46:58,044 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) [2022-11-18 19:46:58,044 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 153 transitions. [2022-11-18 19:46:58,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:46:58,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:58,045 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:58,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:46:58,046 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:58,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash -836288744, now seen corresponding path program 1 times [2022-11-18 19:46:58,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:58,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944020262] [2022-11-18 19:46:58,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:58,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:58,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:58,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944020262] [2022-11-18 19:46:58,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944020262] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:58,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:58,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:58,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272002617] [2022-11-18 19:46:58,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:58,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:58,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:58,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:58,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:58,154 INFO L87 Difference]: Start difference. First operand 113 states and 153 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:58,270 INFO L93 Difference]: Finished difference Result 138 states and 180 transitions. [2022-11-18 19:46:58,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:46:58,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 19:46:58,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:58,275 INFO L225 Difference]: With dead ends: 138 [2022-11-18 19:46:58,276 INFO L226 Difference]: Without dead ends: 136 [2022-11-18 19:46:58,279 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 [2022-11-18 19:46:58,280 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 114 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:58,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 332 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:58,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-18 19:46:58,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 116. [2022-11-18 19:46:58,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 96 states have (on average 1.5520833333333333) internal successors, (149), 109 states have internal predecessors, (149), 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) [2022-11-18 19:46:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 157 transitions. [2022-11-18 19:46:58,302 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 157 transitions. Word has length 13 [2022-11-18 19:46:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:58,303 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 157 transitions. [2022-11-18 19:46:58,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 157 transitions. [2022-11-18 19:46:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:46:58,305 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:58,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:58,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:46:58,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:58,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:58,308 INFO L85 PathProgramCache]: Analyzing trace with hash -155147177, now seen corresponding path program 1 times [2022-11-18 19:46:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:58,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853620771] [2022-11-18 19:46:58,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:58,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:58,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:58,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:58,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853620771] [2022-11-18 19:46:58,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853620771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:58,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:58,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292727761] [2022-11-18 19:46:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:58,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:58,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:58,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:58,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:58,457 INFO L87 Difference]: Start difference. First operand 116 states and 157 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) [2022-11-18 19:46:58,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:58,565 INFO L93 Difference]: Finished difference Result 255 states and 345 transitions. [2022-11-18 19:46:58,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:46:58,566 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 [2022-11-18 19:46:58,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:58,567 INFO L225 Difference]: With dead ends: 255 [2022-11-18 19:46:58,568 INFO L226 Difference]: Without dead ends: 142 [2022-11-18 19:46:58,569 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 [2022-11-18 19:46:58,570 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 124 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:58,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 324 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:58,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-18 19:46:58,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 120. [2022-11-18 19:46:58,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.53) internal successors, (153), 113 states have internal predecessors, (153), 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) [2022-11-18 19:46:58,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 161 transitions. [2022-11-18 19:46:58,583 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 161 transitions. Word has length 14 [2022-11-18 19:46:58,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:58,584 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 161 transitions. [2022-11-18 19:46:58,584 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) [2022-11-18 19:46:58,584 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 161 transitions. [2022-11-18 19:46:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:46:58,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:58,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:58,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:46:58,586 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:58,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:58,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2133318793, now seen corresponding path program 1 times [2022-11-18 19:46:58,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:58,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024972464] [2022-11-18 19:46:58,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:58,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 19:46:58,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:58,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024972464] [2022-11-18 19:46:58,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024972464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:58,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:58,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:46:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494579591] [2022-11-18 19:46:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:58,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:46:58,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:58,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:46:58,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:46:58,619 INFO L87 Difference]: Start difference. First operand 120 states and 161 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (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) [2022-11-18 19:46:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:58,647 INFO L93 Difference]: Finished difference Result 128 states and 171 transitions. [2022-11-18 19:46:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:46:58,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (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 [2022-11-18 19:46:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:58,649 INFO L225 Difference]: With dead ends: 128 [2022-11-18 19:46:58,649 INFO L226 Difference]: Without dead ends: 127 [2022-11-18 19:46:58,649 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 [2022-11-18 19:46:58,650 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 5 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 178 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 [2022-11-18 19:46:58,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 178 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:46:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-18 19:46:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 118. [2022-11-18 19:46:58,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 99 states have (on average 1.5151515151515151) internal successors, (150), 111 states have internal predecessors, (150), 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) [2022-11-18 19:46:58,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 158 transitions. [2022-11-18 19:46:58,662 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 158 transitions. Word has length 15 [2022-11-18 19:46:58,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:58,662 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 158 transitions. [2022-11-18 19:46:58,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (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) [2022-11-18 19:46:58,663 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 158 transitions. [2022-11-18 19:46:58,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 19:46:58,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:58,664 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:58,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:46:58,664 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:58,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:58,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2133316543, now seen corresponding path program 1 times [2022-11-18 19:46:58,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:58,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686361688] [2022-11-18 19:46:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:58,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:58,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:58,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686361688] [2022-11-18 19:46:58,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686361688] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:46:58,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339389924] [2022-11-18 19:46:58,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:58,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:46:58,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:46:58,753 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:46:58,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 19:46:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:58,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 19:46:58,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:46:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:46:58,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:46:58,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339389924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:58,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:46:58,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-11-18 19:46:58,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835826901] [2022-11-18 19:46:58,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:58,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:58,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:58,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:58,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:46:58,880 INFO L87 Difference]: Start difference. First operand 118 states and 158 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:58,934 INFO L93 Difference]: Finished difference Result 147 states and 199 transitions. [2022-11-18 19:46:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 19:46:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:58,937 INFO L225 Difference]: With dead ends: 147 [2022-11-18 19:46:58,937 INFO L226 Difference]: Without dead ends: 146 [2022-11-18 19:46:58,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:46:58,938 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 18 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:58,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 282 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:46:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-18 19:46:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2022-11-18 19:46:58,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.504950495049505) internal successors, (152), 113 states have internal predecessors, (152), 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) [2022-11-18 19:46:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2022-11-18 19:46:58,951 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 15 [2022-11-18 19:46:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:58,952 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2022-11-18 19:46:58,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:46:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2022-11-18 19:46:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 19:46:58,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:58,954 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:58,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:46:59,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-18 19:46:59,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:59,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:59,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2139754939, now seen corresponding path program 1 times [2022-11-18 19:46:59,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:59,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583020415] [2022-11-18 19:46:59,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:59,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:59,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 19:46:59,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:59,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583020415] [2022-11-18 19:46:59,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583020415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:59,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:59,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:46:59,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045272826] [2022-11-18 19:46:59,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:59,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:46:59,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:59,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:46:59,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:46:59,210 INFO L87 Difference]: Start difference. First operand 120 states and 160 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) [2022-11-18 19:46:59,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:59,259 INFO L93 Difference]: Finished difference Result 151 states and 204 transitions. [2022-11-18 19:46:59,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 19:46:59,260 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 [2022-11-18 19:46:59,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:59,261 INFO L225 Difference]: With dead ends: 151 [2022-11-18 19:46:59,262 INFO L226 Difference]: Without dead ends: 149 [2022-11-18 19:46:59,262 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 [2022-11-18 19:46:59,263 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 22 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:59,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 189 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:46:59,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-18 19:46:59,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 121. [2022-11-18 19:46:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.4951456310679612) internal successors, (154), 114 states have internal predecessors, (154), 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) [2022-11-18 19:46:59,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 162 transitions. [2022-11-18 19:46:59,275 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 162 transitions. Word has length 19 [2022-11-18 19:46:59,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:59,275 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 162 transitions. [2022-11-18 19:46:59,275 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) [2022-11-18 19:46:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 162 transitions. [2022-11-18 19:46:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 19:46:59,277 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:59,277 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:59,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:46:59,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:59,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1340792949, now seen corresponding path program 1 times [2022-11-18 19:46:59,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:59,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504539118] [2022-11-18 19:46:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:59,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:46:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:46:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:59,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:59,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504539118] [2022-11-18 19:46:59,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504539118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:59,344 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:59,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:59,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106847745] [2022-11-18 19:46:59,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:59,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:59,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:59,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:59,346 INFO L87 Difference]: Start difference. First operand 121 states and 162 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, (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) [2022-11-18 19:46:59,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:59,431 INFO L93 Difference]: Finished difference Result 179 states and 243 transitions. [2022-11-18 19:46:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:46:59,432 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, (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 23 [2022-11-18 19:46:59,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:59,433 INFO L225 Difference]: With dead ends: 179 [2022-11-18 19:46:59,434 INFO L226 Difference]: Without dead ends: 177 [2022-11-18 19:46:59,434 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 [2022-11-18 19:46:59,435 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 130 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 259 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 [2022-11-18 19:46:59,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 259 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:59,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-11-18 19:46:59,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 148. [2022-11-18 19:46:59,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 129 states have (on average 1.503875968992248) internal successors, (194), 140 states have internal predecessors, (194), 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) [2022-11-18 19:46:59,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 202 transitions. [2022-11-18 19:46:59,445 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 202 transitions. Word has length 23 [2022-11-18 19:46:59,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:59,446 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 202 transitions. [2022-11-18 19:46:59,446 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, (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) [2022-11-18 19:46:59,446 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 202 transitions. [2022-11-18 19:46:59,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 19:46:59,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:59,447 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:46:59,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:46:59,448 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:59,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:59,448 INFO L85 PathProgramCache]: Analyzing trace with hash 875614707, now seen corresponding path program 1 times [2022-11-18 19:46:59,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:59,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591509380] [2022-11-18 19:46:59,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:59,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:46:59,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:46:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-18 19:46:59,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:59,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591509380] [2022-11-18 19:46:59,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591509380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:59,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:59,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:59,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921821486] [2022-11-18 19:46:59,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:59,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:59,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:59,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:59,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:59,521 INFO L87 Difference]: Start difference. First operand 148 states and 202 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, (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) [2022-11-18 19:46:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:59,637 INFO L93 Difference]: Finished difference Result 172 states and 231 transitions. [2022-11-18 19:46:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:46:59,638 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, (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 25 [2022-11-18 19:46:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:59,643 INFO L225 Difference]: With dead ends: 172 [2022-11-18 19:46:59,643 INFO L226 Difference]: Without dead ends: 170 [2022-11-18 19:46:59,643 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 [2022-11-18 19:46:59,646 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 117 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 263 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 [2022-11-18 19:46:59,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 263 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:59,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-18 19:46:59,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 144. [2022-11-18 19:46:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 125 states have (on average 1.488) internal successors, (186), 136 states have internal predecessors, (186), 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) [2022-11-18 19:46:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 194 transitions. [2022-11-18 19:46:59,660 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 194 transitions. Word has length 25 [2022-11-18 19:46:59,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:59,661 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 194 transitions. [2022-11-18 19:46:59,661 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, (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) [2022-11-18 19:46:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 194 transitions. [2022-11-18 19:46:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 19:46:59,664 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:59,664 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] [2022-11-18 19:46:59,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:46:59,665 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:59,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:59,665 INFO L85 PathProgramCache]: Analyzing trace with hash 983263787, now seen corresponding path program 1 times [2022-11-18 19:46:59,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:59,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214124171] [2022-11-18 19:46:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:59,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:59,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:46:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:46:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:46:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,782 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 19:46:59,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:59,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214124171] [2022-11-18 19:46:59,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214124171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:59,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:59,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:59,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74413752] [2022-11-18 19:46:59,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:59,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:59,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:59,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:59,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:59,785 INFO L87 Difference]: Start difference. First operand 144 states and 194 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, (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) [2022-11-18 19:46:59,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:46:59,901 INFO L93 Difference]: Finished difference Result 166 states and 224 transitions. [2022-11-18 19:46:59,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:46:59,902 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, (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 30 [2022-11-18 19:46:59,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:46:59,903 INFO L225 Difference]: With dead ends: 166 [2022-11-18 19:46:59,904 INFO L226 Difference]: Without dead ends: 164 [2022-11-18 19:46:59,904 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 [2022-11-18 19:46:59,904 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 128 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:46:59,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 252 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:46:59,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-18 19:46:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 137. [2022-11-18 19:46:59,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 120 states have (on average 1.4583333333333333) internal successors, (175), 129 states have internal predecessors, (175), 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) [2022-11-18 19:46:59,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 183 transitions. [2022-11-18 19:46:59,913 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 183 transitions. Word has length 30 [2022-11-18 19:46:59,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:46:59,914 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 183 transitions. [2022-11-18 19:46:59,914 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, (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) [2022-11-18 19:46:59,914 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 183 transitions. [2022-11-18 19:46:59,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 19:46:59,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:46:59,921 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, 1] [2022-11-18 19:46:59,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:46:59,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:46:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:46:59,921 INFO L85 PathProgramCache]: Analyzing trace with hash 911144083, now seen corresponding path program 1 times [2022-11-18 19:46:59,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:46:59,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161685368] [2022-11-18 19:46:59,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:46:59,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:46:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:46:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:46:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:46:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:46:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-18 19:46:59,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:46:59,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161685368] [2022-11-18 19:46:59,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161685368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:46:59,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:46:59,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:46:59,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219300467] [2022-11-18 19:46:59,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:46:59,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:46:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:46:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:46:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:46:59,987 INFO L87 Difference]: Start difference. First operand 137 states and 183 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-18 19:47:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:00,066 INFO L93 Difference]: Finished difference Result 159 states and 212 transitions. [2022-11-18 19:47:00,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:47:00,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 32 [2022-11-18 19:47:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:00,068 INFO L225 Difference]: With dead ends: 159 [2022-11-18 19:47:00,069 INFO L226 Difference]: Without dead ends: 157 [2022-11-18 19:47:00,069 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 [2022-11-18 19:47:00,070 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 115 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:00,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 254 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:00,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-18 19:47:00,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 131. [2022-11-18 19:47:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 116 states have (on average 1.4396551724137931) internal successors, (167), 123 states have internal predecessors, (167), 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) [2022-11-18 19:47:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 175 transitions. [2022-11-18 19:47:00,080 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 175 transitions. Word has length 32 [2022-11-18 19:47:00,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:00,081 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 175 transitions. [2022-11-18 19:47:00,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-11-18 19:47:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 175 transitions. [2022-11-18 19:47:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-18 19:47:00,082 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:00,082 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, 1, 1] [2022-11-18 19:47:00,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:47:00,082 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:00,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:00,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1473164974, now seen corresponding path program 1 times [2022-11-18 19:47:00,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:00,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007835369] [2022-11-18 19:47:00,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:00,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:00,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:00,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 19:47:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 19:47:00,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,172 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-18 19:47:00,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:00,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007835369] [2022-11-18 19:47:00,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007835369] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:00,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488729308] [2022-11-18 19:47:00,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:00,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:00,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:00,175 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:00,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 19:47:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:00,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 19:47:00,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:00,380 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-18 19:47:00,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:00,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488729308] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:00,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:00,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2022-11-18 19:47:00,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545500141] [2022-11-18 19:47:00,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:00,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 19:47:00,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:00,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 19:47:00,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:47:00,578 INFO L87 Difference]: Start difference. First operand 131 states and 175 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) [2022-11-18 19:47:01,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:01,145 INFO L93 Difference]: Finished difference Result 442 states and 574 transitions. [2022-11-18 19:47:01,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:47:01,146 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 37 [2022-11-18 19:47:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:01,151 INFO L225 Difference]: With dead ends: 442 [2022-11-18 19:47:01,152 INFO L226 Difference]: Without dead ends: 265 [2022-11-18 19:47:01,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2022-11-18 19:47:01,153 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 165 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:01,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 966 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:47:01,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-18 19:47:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 132. [2022-11-18 19:47:01,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.3879310344827587) internal successors, (161), 123 states have internal predecessors, (161), 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) [2022-11-18 19:47:01,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 169 transitions. [2022-11-18 19:47:01,171 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 169 transitions. Word has length 37 [2022-11-18 19:47:01,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:01,171 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 169 transitions. [2022-11-18 19:47:01,172 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) [2022-11-18 19:47:01,172 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 169 transitions. [2022-11-18 19:47:01,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-18 19:47:01,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:01,174 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:01,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:01,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:01,379 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:01,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:01,380 INFO L85 PathProgramCache]: Analyzing trace with hash 565784177, now seen corresponding path program 1 times [2022-11-18 19:47:01,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:01,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926973490] [2022-11-18 19:47:01,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:01,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:01,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:47:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,554 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:47:01,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:01,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926973490] [2022-11-18 19:47:01,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926973490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:01,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:01,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:47:01,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906376102] [2022-11-18 19:47:01,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:01,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:47:01,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:01,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:47:01,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:47:01,557 INFO L87 Difference]: Start difference. First operand 132 states and 169 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2022-11-18 19:47:01,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:01,709 INFO L93 Difference]: Finished difference Result 246 states and 295 transitions. [2022-11-18 19:47:01,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:47:01,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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 53 [2022-11-18 19:47:01,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:01,711 INFO L225 Difference]: With dead ends: 246 [2022-11-18 19:47:01,711 INFO L226 Difference]: Without dead ends: 198 [2022-11-18 19:47:01,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:47:01,712 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 98 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:01,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 537 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:01,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-18 19:47:01,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 132. [2022-11-18 19:47:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 123 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) [2022-11-18 19:47:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 167 transitions. [2022-11-18 19:47:01,725 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 167 transitions. Word has length 53 [2022-11-18 19:47:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:01,726 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 167 transitions. [2022-11-18 19:47:01,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2022-11-18 19:47:01,726 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 167 transitions. [2022-11-18 19:47:01,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-18 19:47:01,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:01,727 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, 1] [2022-11-18 19:47:01,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:47:01,727 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:01,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:01,728 INFO L85 PathProgramCache]: Analyzing trace with hash -88674334, now seen corresponding path program 2 times [2022-11-18 19:47:01,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:01,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998833867] [2022-11-18 19:47:01,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:01,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:47:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:01,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:01,872 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-18 19:47:01,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:01,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998833867] [2022-11-18 19:47:01,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998833867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:01,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:01,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 19:47:01,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588184902] [2022-11-18 19:47:01,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:01,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:47:01,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:01,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:47:01,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:47:01,877 INFO L87 Difference]: Start difference. First operand 132 states and 167 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2022-11-18 19:47:02,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:02,040 INFO L93 Difference]: Finished difference Result 242 states and 293 transitions. [2022-11-18 19:47:02,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:47:02,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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 57 [2022-11-18 19:47:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:02,042 INFO L225 Difference]: With dead ends: 242 [2022-11-18 19:47:02,042 INFO L226 Difference]: Without dead ends: 210 [2022-11-18 19:47:02,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:47:02,043 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 144 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:02,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 628 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:02,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-18 19:47:02,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 155. [2022-11-18 19:47:02,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 138 states have (on average 1.3623188405797102) internal successors, (188), 145 states have internal predecessors, (188), 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) [2022-11-18 19:47:02,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 197 transitions. [2022-11-18 19:47:02,056 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 197 transitions. Word has length 57 [2022-11-18 19:47:02,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:02,057 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 197 transitions. [2022-11-18 19:47:02,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 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) [2022-11-18 19:47:02,057 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 197 transitions. [2022-11-18 19:47:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-18 19:47:02,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:02,058 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, 1] [2022-11-18 19:47:02,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:47:02,059 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:02,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:02,059 INFO L85 PathProgramCache]: Analyzing trace with hash -88672412, now seen corresponding path program 1 times [2022-11-18 19:47:02,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:02,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209643365] [2022-11-18 19:47:02,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:02,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:47:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:47:02,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:02,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209643365] [2022-11-18 19:47:02,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209643365] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:02,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883388327] [2022-11-18 19:47:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:02,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:02,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:02,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:02,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 19:47:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:02,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 19:47:02,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:02,456 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 19:47:02,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:02,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883388327] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:02,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:02,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2022-11-18 19:47:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984934263] [2022-11-18 19:47:02,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:02,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:47:02,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:02,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:47:02,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-18 19:47:02,458 INFO L87 Difference]: Start difference. First operand 155 states and 197 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 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) [2022-11-18 19:47:02,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:02,682 INFO L93 Difference]: Finished difference Result 282 states and 350 transitions. [2022-11-18 19:47:02,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:47:02,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 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 57 [2022-11-18 19:47:02,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:02,684 INFO L225 Difference]: With dead ends: 282 [2022-11-18 19:47:02,684 INFO L226 Difference]: Without dead ends: 236 [2022-11-18 19:47:02,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:47:02,685 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 151 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:02,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 517 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-18 19:47:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 175. [2022-11-18 19:47:02,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 156 states have (on average 1.3333333333333333) internal successors, (208), 163 states have internal predecessors, (208), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2022-11-18 19:47:02,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 221 transitions. [2022-11-18 19:47:02,711 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 221 transitions. Word has length 57 [2022-11-18 19:47:02,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:02,712 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 221 transitions. [2022-11-18 19:47:02,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 7 states have internal predecessors, (36), 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) [2022-11-18 19:47:02,712 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 221 transitions. [2022-11-18 19:47:02,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 19:47:02,713 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:02,713 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:02,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:02,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 19:47:02,920 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:02,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash 443518487, now seen corresponding path program 1 times [2022-11-18 19:47:02,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:02,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374453442] [2022-11-18 19:47:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:02,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:47:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,182 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-18 19:47:03,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:03,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374453442] [2022-11-18 19:47:03,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374453442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:03,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:47:03,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 19:47:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137168047] [2022-11-18 19:47:03,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:03,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 19:47:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:03,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 19:47:03,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:47:03,185 INFO L87 Difference]: Start difference. First operand 175 states and 221 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 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) [2022-11-18 19:47:03,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:03,535 INFO L93 Difference]: Finished difference Result 387 states and 458 transitions. [2022-11-18 19:47:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:47:03,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 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 61 [2022-11-18 19:47:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:03,538 INFO L225 Difference]: With dead ends: 387 [2022-11-18 19:47:03,538 INFO L226 Difference]: Without dead ends: 357 [2022-11-18 19:47:03,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-11-18 19:47:03,539 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 261 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:03,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 724 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:03,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-11-18 19:47:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 197. [2022-11-18 19:47:03,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 177 states have (on average 1.344632768361582) internal successors, (238), 184 states have internal predecessors, (238), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:03,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 253 transitions. [2022-11-18 19:47:03,564 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 253 transitions. Word has length 61 [2022-11-18 19:47:03,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:03,565 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 253 transitions. [2022-11-18 19:47:03,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 8 states have internal predecessors, (39), 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) [2022-11-18 19:47:03,565 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 253 transitions. [2022-11-18 19:47:03,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-18 19:47:03,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:03,566 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:03,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:47:03,567 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:03,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:03,567 INFO L85 PathProgramCache]: Analyzing trace with hash 443520409, now seen corresponding path program 1 times [2022-11-18 19:47:03,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:03,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647949050] [2022-11-18 19:47:03,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:03,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:03,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-18 19:47:03,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 19:47:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,774 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:03,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:03,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647949050] [2022-11-18 19:47:03,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647949050] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:03,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183080760] [2022-11-18 19:47:03,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:03,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:03,776 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:03,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 19:47:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:03,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 19:47:03,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-18 19:47:03,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-18 19:47:04,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183080760] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:04,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:04,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2022-11-18 19:47:04,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895090510] [2022-11-18 19:47:04,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:04,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 19:47:04,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 19:47:04,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:47:04,089 INFO L87 Difference]: Start difference. First operand 197 states and 253 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-18 19:47:04,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:04,646 INFO L93 Difference]: Finished difference Result 473 states and 609 transitions. [2022-11-18 19:47:04,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-18 19:47:04,647 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 61 [2022-11-18 19:47:04,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:04,649 INFO L225 Difference]: With dead ends: 473 [2022-11-18 19:47:04,649 INFO L226 Difference]: Without dead ends: 306 [2022-11-18 19:47:04,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2022-11-18 19:47:04,651 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 242 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:04,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 536 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:04,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2022-11-18 19:47:04,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 191. [2022-11-18 19:47:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 178 states have internal predecessors, (224), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 239 transitions. [2022-11-18 19:47:04,673 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 239 transitions. Word has length 61 [2022-11-18 19:47:04,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:04,673 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 239 transitions. [2022-11-18 19:47:04,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 12 states have internal predecessors, (67), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-18 19:47:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 239 transitions. [2022-11-18 19:47:04,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-18 19:47:04,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:04,675 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:04,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:04,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 19:47:04,881 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:04,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:04,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1936134465, now seen corresponding path program 1 times [2022-11-18 19:47:04,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:04,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400792129] [2022-11-18 19:47:04,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:04,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:04,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:04,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:05,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 19:47:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 19:47:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:05,024 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:05,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:05,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400792129] [2022-11-18 19:47:05,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400792129] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:05,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982698374] [2022-11-18 19:47:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:05,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:05,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:05,027 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:05,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 19:47:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:05,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-18 19:47:05,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:47:05,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:05,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982698374] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:05,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:05,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-18 19:47:05,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757342080] [2022-11-18 19:47:05,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:05,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 19:47:05,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:05,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 19:47:05,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:47:05,309 INFO L87 Difference]: Start difference. First operand 191 states and 239 transitions. Second operand has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 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) [2022-11-18 19:47:05,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:05,632 INFO L93 Difference]: Finished difference Result 665 states and 862 transitions. [2022-11-18 19:47:05,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:47:05,633 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 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 65 [2022-11-18 19:47:05,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:05,635 INFO L225 Difference]: With dead ends: 665 [2022-11-18 19:47:05,636 INFO L226 Difference]: Without dead ends: 501 [2022-11-18 19:47:05,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:47:05,637 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 264 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:05,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 381 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:05,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2022-11-18 19:47:05,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 217. [2022-11-18 19:47:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 197 states have (on average 1.3045685279187818) internal successors, (257), 204 states have internal predecessors, (257), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:05,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 272 transitions. [2022-11-18 19:47:05,666 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 272 transitions. Word has length 65 [2022-11-18 19:47:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:05,666 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 272 transitions. [2022-11-18 19:47:05,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.857142857142857) internal successors, (96), 14 states have internal predecessors, (96), 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) [2022-11-18 19:47:05,667 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 272 transitions. [2022-11-18 19:47:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-18 19:47:05,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:05,668 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:05,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:05,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 19:47:05,874 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:05,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:05,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1027341673, now seen corresponding path program 1 times [2022-11-18 19:47:05,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:05,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315097679] [2022-11-18 19:47:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:05,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 19:47:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-18 19:47:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:06,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:06,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315097679] [2022-11-18 19:47:06,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315097679] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:06,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973590270] [2022-11-18 19:47:06,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:06,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:06,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:06,134 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:06,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 19:47:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:06,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:47:06,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:06,309 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:47:06,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 20 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:06,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973590270] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:06,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:06,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-18 19:47:06,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286935992] [2022-11-18 19:47:06,455 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:06,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:47:06,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:06,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:47:06,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-18 19:47:06,458 INFO L87 Difference]: Start difference. First operand 217 states and 272 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 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) [2022-11-18 19:47:07,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:07,079 INFO L93 Difference]: Finished difference Result 608 states and 778 transitions. [2022-11-18 19:47:07,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:47:07,080 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 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 68 [2022-11-18 19:47:07,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:07,083 INFO L225 Difference]: With dead ends: 608 [2022-11-18 19:47:07,083 INFO L226 Difference]: Without dead ends: 424 [2022-11-18 19:47:07,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2022-11-18 19:47:07,085 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 239 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:07,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 388 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:47:07,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2022-11-18 19:47:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 211. [2022-11-18 19:47:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 191 states have (on average 1.2774869109947644) internal successors, (244), 198 states have internal predecessors, (244), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 259 transitions. [2022-11-18 19:47:07,118 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 259 transitions. Word has length 68 [2022-11-18 19:47:07,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:07,119 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 259 transitions. [2022-11-18 19:47:07,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 13 states have internal predecessors, (98), 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) [2022-11-18 19:47:07,119 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 259 transitions. [2022-11-18 19:47:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-18 19:47:07,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:07,126 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, 1, 1, 1] [2022-11-18 19:47:07,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:07,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:07,333 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:07,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:07,333 INFO L85 PathProgramCache]: Analyzing trace with hash -664142913, now seen corresponding path program 2 times [2022-11-18 19:47:07,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:07,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173843287] [2022-11-18 19:47:07,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:07,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:07,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-18 19:47:07,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:07,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-18 19:47:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:07,595 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:07,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:07,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173843287] [2022-11-18 19:47:07,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173843287] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:07,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605709532] [2022-11-18 19:47:07,596 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:47:07,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:07,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:07,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:07,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 19:47:07,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:47:07,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:47:07,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-18 19:47:07,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:07,844 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:47:07,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:08,166 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:08,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605709532] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:08,167 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:08,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-18 19:47:08,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009049743] [2022-11-18 19:47:08,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:08,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-18 19:47:08,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:08,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-18 19:47:08,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:47:08,171 INFO L87 Difference]: Start difference. First operand 211 states and 259 transitions. Second operand has 26 states, 26 states have (on average 6.0) internal successors, (156), 26 states have internal predecessors, (156), 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) [2022-11-18 19:47:09,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:09,068 INFO L93 Difference]: Finished difference Result 1017 states and 1330 transitions. [2022-11-18 19:47:09,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-18 19:47:09,069 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 26 states have internal predecessors, (156), 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 85 [2022-11-18 19:47:09,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:09,073 INFO L225 Difference]: With dead ends: 1017 [2022-11-18 19:47:09,073 INFO L226 Difference]: Without dead ends: 853 [2022-11-18 19:47:09,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:47:09,076 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 562 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:09,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 977 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:47:09,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-11-18 19:47:09,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 257. [2022-11-18 19:47:09,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 237 states have (on average 1.270042194092827) internal successors, (301), 244 states have internal predecessors, (301), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 316 transitions. [2022-11-18 19:47:09,120 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 316 transitions. Word has length 85 [2022-11-18 19:47:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:09,120 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 316 transitions. [2022-11-18 19:47:09,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.0) internal successors, (156), 26 states have internal predecessors, (156), 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) [2022-11-18 19:47:09,121 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 316 transitions. [2022-11-18 19:47:09,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-18 19:47:09,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:09,122 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:09,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:09,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:09,328 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:09,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:09,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1623468649, now seen corresponding path program 2 times [2022-11-18 19:47:09,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:09,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931101684] [2022-11-18 19:47:09,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:09,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:09,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:09,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:47:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-18 19:47:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 4 proven. 90 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:09,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:09,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931101684] [2022-11-18 19:47:09,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931101684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:09,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753780809] [2022-11-18 19:47:09,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:47:09,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:09,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:09,662 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:09,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 19:47:09,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:47:09,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:47:09,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-18 19:47:09,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:09,868 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-18 19:47:09,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-18 19:47:10,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753780809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:10,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:10,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 20 [2022-11-18 19:47:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902885376] [2022-11-18 19:47:10,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:10,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 19:47:10,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 19:47:10,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:47:10,059 INFO L87 Difference]: Start difference. First operand 257 states and 316 transitions. Second operand has 20 states, 20 states have (on average 4.95) internal successors, (99), 18 states have internal predecessors, (99), 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) [2022-11-18 19:47:10,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:10,791 INFO L93 Difference]: Finished difference Result 640 states and 805 transitions. [2022-11-18 19:47:10,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 19:47:10,793 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.95) internal successors, (99), 18 states have internal predecessors, (99), 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 88 [2022-11-18 19:47:10,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:10,795 INFO L225 Difference]: With dead ends: 640 [2022-11-18 19:47:10,795 INFO L226 Difference]: Without dead ends: 474 [2022-11-18 19:47:10,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:47:10,797 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 374 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:10,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 1138 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-18 19:47:10,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-18 19:47:10,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 275. [2022-11-18 19:47:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 260 states have internal predecessors, (320), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 335 transitions. [2022-11-18 19:47:10,829 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 335 transitions. Word has length 88 [2022-11-18 19:47:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:10,829 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 335 transitions. [2022-11-18 19:47:10,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.95) internal successors, (99), 18 states have internal predecessors, (99), 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) [2022-11-18 19:47:10,830 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 335 transitions. [2022-11-18 19:47:10,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 19:47:10,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:10,831 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:10,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:11,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:11,037 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:11,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:11,038 INFO L85 PathProgramCache]: Analyzing trace with hash -882790551, now seen corresponding path program 3 times [2022-11-18 19:47:11,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:11,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543427224] [2022-11-18 19:47:11,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:11,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:11,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:11,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 19:47:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:11,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 19:47:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:11,437 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 4 proven. 120 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:11,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:11,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543427224] [2022-11-18 19:47:11,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543427224] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:11,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977471735] [2022-11-18 19:47:11,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:47:11,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:11,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:11,439 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:11,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 19:47:11,503 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-18 19:47:11,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:47:11,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 19:47:11,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:11,606 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-18 19:47:11,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:11,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977471735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:11,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:11,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2022-11-18 19:47:11,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684821166] [2022-11-18 19:47:11,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:11,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:47:11,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:11,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:47:11,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:47:11,609 INFO L87 Difference]: Start difference. First operand 275 states and 335 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-11-18 19:47:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:11,783 INFO L93 Difference]: Finished difference Result 331 states and 393 transitions. [2022-11-18 19:47:11,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:47:11,786 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 93 [2022-11-18 19:47:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:11,788 INFO L225 Difference]: With dead ends: 331 [2022-11-18 19:47:11,788 INFO L226 Difference]: Without dead ends: 329 [2022-11-18 19:47:11,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2022-11-18 19:47:11,789 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 135 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:11,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 667 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-11-18 19:47:11,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 268. [2022-11-18 19:47:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 248 states have (on average 1.2580645161290323) internal successors, (312), 253 states have internal predecessors, (312), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-18 19:47:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 327 transitions. [2022-11-18 19:47:11,821 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 327 transitions. Word has length 93 [2022-11-18 19:47:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:11,821 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 327 transitions. [2022-11-18 19:47:11,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-11-18 19:47:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 327 transitions. [2022-11-18 19:47:11,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 19:47:11,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:11,823 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:11,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:12,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:12,029 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:12,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:12,030 INFO L85 PathProgramCache]: Analyzing trace with hash -825534171, now seen corresponding path program 1 times [2022-11-18 19:47:12,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:12,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082113840] [2022-11-18 19:47:12,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:12,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 19:47:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 19:47:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,238 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-18 19:47:12,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:12,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082113840] [2022-11-18 19:47:12,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082113840] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:12,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694376127] [2022-11-18 19:47:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:12,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:12,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:12,240 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:12,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 19:47:12,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:12,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-18 19:47:12,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:12,464 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-18 19:47:12,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2022-11-18 19:47:12,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694376127] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:12,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:12,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 21 [2022-11-18 19:47:12,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167372149] [2022-11-18 19:47:12,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:12,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-18 19:47:12,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:12,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-18 19:47:12,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2022-11-18 19:47:12,627 INFO L87 Difference]: Start difference. First operand 268 states and 327 transitions. Second operand has 21 states, 21 states have (on average 3.7142857142857144) internal successors, (78), 18 states have internal predecessors, (78), 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) [2022-11-18 19:47:13,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:13,458 INFO L93 Difference]: Finished difference Result 796 states and 975 transitions. [2022-11-18 19:47:13,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 19:47:13,459 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.7142857142857144) internal successors, (78), 18 states have internal predecessors, (78), 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 93 [2022-11-18 19:47:13,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:13,465 INFO L225 Difference]: With dead ends: 796 [2022-11-18 19:47:13,466 INFO L226 Difference]: Without dead ends: 754 [2022-11-18 19:47:13,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=218, Invalid=1188, Unknown=0, NotChecked=0, Total=1406 [2022-11-18 19:47:13,472 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 383 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:13,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 2480 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 19:47:13,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2022-11-18 19:47:13,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 298. [2022-11-18 19:47:13,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 276 states have (on average 1.2608695652173914) internal successors, (348), 279 states have internal predecessors, (348), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 14 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-18 19:47:13,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 368 transitions. [2022-11-18 19:47:13,515 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 368 transitions. Word has length 93 [2022-11-18 19:47:13,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:13,515 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 368 transitions. [2022-11-18 19:47:13,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.7142857142857144) internal successors, (78), 18 states have internal predecessors, (78), 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) [2022-11-18 19:47:13,516 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 368 transitions. [2022-11-18 19:47:13,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 19:47:13,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:13,517 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:13,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 19:47:13,724 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:13,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash -825532249, now seen corresponding path program 1 times [2022-11-18 19:47:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:13,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285096430] [2022-11-18 19:47:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:13,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:13,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:13,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-11-18 19:47:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:14,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 19:47:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 4 proven. 120 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:14,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:14,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285096430] [2022-11-18 19:47:14,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285096430] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:14,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528053127] [2022-11-18 19:47:14,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:14,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:14,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:14,139 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:14,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 19:47:14,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:14,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 19:47:14,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:14,523 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 31 proven. 105 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:47:14,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 4 proven. 120 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:14,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528053127] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:14,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:14,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2022-11-18 19:47:14,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481999277] [2022-11-18 19:47:14,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:14,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-18 19:47:14,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:14,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-18 19:47:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2022-11-18 19:47:14,954 INFO L87 Difference]: Start difference. First operand 298 states and 368 transitions. Second operand has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 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) [2022-11-18 19:47:24,140 WARN L233 SmtUtils]: Spent 6.28s on a formula simplification. DAG size of input: 47 DAG size of output: 17 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:47:43,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:43,082 INFO L93 Difference]: Finished difference Result 1011 states and 1308 transitions. [2022-11-18 19:47:43,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-18 19:47:43,084 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 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 93 [2022-11-18 19:47:43,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:43,087 INFO L225 Difference]: With dead ends: 1011 [2022-11-18 19:47:43,087 INFO L226 Difference]: Without dead ends: 780 [2022-11-18 19:47:43,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=638, Invalid=1166, Unknown=2, NotChecked=0, Total=1806 [2022-11-18 19:47:43,090 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 607 mSDsluCounter, 1173 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:43,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 1305 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 19:47:43,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-11-18 19:47:43,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 300. [2022-11-18 19:47:43,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 278 states have (on average 1.2266187050359711) internal successors, (341), 281 states have internal predecessors, (341), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 14 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-18 19:47:43,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 361 transitions. [2022-11-18 19:47:43,136 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 361 transitions. Word has length 93 [2022-11-18 19:47:43,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:43,137 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 361 transitions. [2022-11-18 19:47:43,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 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) [2022-11-18 19:47:43,137 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 361 transitions. [2022-11-18 19:47:43,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-11-18 19:47:43,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:43,139 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, 1, 1, 1] [2022-11-18 19:47:43,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:43,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:43,345 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:43,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:43,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2117480845, now seen corresponding path program 1 times [2022-11-18 19:47:43,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:43,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890475542] [2022-11-18 19:47:43,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:43,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:43,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:43,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 19:47:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-18 19:47:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:43,935 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:43,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:43,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890475542] [2022-11-18 19:47:43,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890475542] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:43,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307326729] [2022-11-18 19:47:43,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:43,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:43,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:43,937 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:43,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 19:47:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:44,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 19:47:44,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:44,365 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-18 19:47:44,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:47:45,284 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:45,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307326729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:47:45,285 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:47:45,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-18 19:47:45,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596094778] [2022-11-18 19:47:45,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:47:45,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-18 19:47:45,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:45,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-18 19:47:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2022-11-18 19:47:45,289 INFO L87 Difference]: Start difference. First operand 300 states and 361 transitions. Second operand has 50 states, 50 states have (on average 5.52) internal successors, (276), 50 states have internal predecessors, (276), 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) [2022-11-18 19:47:47,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:47,075 INFO L93 Difference]: Finished difference Result 1782 states and 2390 transitions. [2022-11-18 19:47:47,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-18 19:47:47,078 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.52) internal successors, (276), 50 states have internal predecessors, (276), 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 125 [2022-11-18 19:47:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:47,085 INFO L225 Difference]: With dead ends: 1782 [2022-11-18 19:47:47,086 INFO L226 Difference]: Without dead ends: 1578 [2022-11-18 19:47:47,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2022-11-18 19:47:47,089 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 1990 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:47,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 814 Invalid, 685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:47:47,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2022-11-18 19:47:47,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 378. [2022-11-18 19:47:47,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 356 states have (on average 1.2219101123595506) internal successors, (435), 359 states have internal predecessors, (435), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 14 states have call predecessors, (14), 6 states have call successors, (14) [2022-11-18 19:47:47,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 455 transitions. [2022-11-18 19:47:47,183 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 455 transitions. Word has length 125 [2022-11-18 19:47:47,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:47,183 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 455 transitions. [2022-11-18 19:47:47,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.52) internal successors, (276), 50 states have internal predecessors, (276), 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) [2022-11-18 19:47:47,184 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 455 transitions. [2022-11-18 19:47:47,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-18 19:47:47,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:47,186 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:47,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:47,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 19:47:47,392 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:47,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:47,392 INFO L85 PathProgramCache]: Analyzing trace with hash -793391669, now seen corresponding path program 2 times [2022-11-18 19:47:47,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:47,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016030278] [2022-11-18 19:47:47,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:47,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:47,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:47,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:48,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:47:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 4 proven. 615 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:48,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:48,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016030278] [2022-11-18 19:47:48,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016030278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:48,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854773271] [2022-11-18 19:47:48,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:47:48,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:48,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:48,253 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:48,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 19:47:48,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-18 19:47:48,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:47:48,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-18 19:47:48,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2022-11-18 19:47:48,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:48,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854773271] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:48,529 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:48,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 26 [2022-11-18 19:47:48,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610204897] [2022-11-18 19:47:48,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:48,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:47:48,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:48,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:47:48,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2022-11-18 19:47:48,532 INFO L87 Difference]: Start difference. First operand 378 states and 455 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-11-18 19:47:48,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:48,808 INFO L93 Difference]: Finished difference Result 459 states and 540 transitions. [2022-11-18 19:47:48,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 19:47:48,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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 138 [2022-11-18 19:47:48,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:48,811 INFO L225 Difference]: With dead ends: 459 [2022-11-18 19:47:48,811 INFO L226 Difference]: Without dead ends: 430 [2022-11-18 19:47:48,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=770, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:47:48,812 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 155 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:48,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 552 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:47:48,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-11-18 19:47:48,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 364. [2022-11-18 19:47:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 342 states have (on average 1.213450292397661) internal successors, (415), 346 states have internal predecessors, (415), 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) [2022-11-18 19:47:48,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 435 transitions. [2022-11-18 19:47:48,865 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 435 transitions. Word has length 138 [2022-11-18 19:47:48,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:48,866 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 435 transitions. [2022-11-18 19:47:48,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 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) [2022-11-18 19:47:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 435 transitions. [2022-11-18 19:47:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-18 19:47:48,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:48,869 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] [2022-11-18 19:47:48,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:49,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-18 19:47:49,074 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:49,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:49,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1419593115, now seen corresponding path program 1 times [2022-11-18 19:47:49,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:49,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519270659] [2022-11-18 19:47:49,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:49,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:49,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:50,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:47:50,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:50,007 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:47:50,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:50,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519270659] [2022-11-18 19:47:50,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519270659] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:50,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930495522] [2022-11-18 19:47:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:50,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:50,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:50,011 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:50,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 19:47:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:50,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-18 19:47:50,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:50,630 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-18 19:47:50,630 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:50,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930495522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:50,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:50,631 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2022-11-18 19:47:50,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133618631] [2022-11-18 19:47:50,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:50,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:47:50,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:50,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:47:50,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2022-11-18 19:47:50,633 INFO L87 Difference]: Start difference. First operand 364 states and 435 transitions. Second operand has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) [2022-11-18 19:47:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:50,971 INFO L93 Difference]: Finished difference Result 431 states and 508 transitions. [2022-11-18 19:47:50,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:47:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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 141 [2022-11-18 19:47:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:50,974 INFO L225 Difference]: With dead ends: 431 [2022-11-18 19:47:50,974 INFO L226 Difference]: Without dead ends: 429 [2022-11-18 19:47:50,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 19:47:50,976 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 118 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:50,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 680 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2022-11-18 19:47:51,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 386. [2022-11-18 19:47:51,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 364 states have (on average 1.2142857142857142) internal successors, (442), 368 states have internal predecessors, (442), 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) [2022-11-18 19:47:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 462 transitions. [2022-11-18 19:47:51,027 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 462 transitions. Word has length 141 [2022-11-18 19:47:51,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:51,028 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 462 transitions. [2022-11-18 19:47:51,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 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) [2022-11-18 19:47:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 462 transitions. [2022-11-18 19:47:51,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-18 19:47:51,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:51,031 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] [2022-11-18 19:47:51,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:51,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 19:47:51,236 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:51,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:51,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1057713387, now seen corresponding path program 1 times [2022-11-18 19:47:51,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:51,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401497172] [2022-11-18 19:47:51,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:51,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:52,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:52,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:47:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:52,073 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:47:52,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:52,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401497172] [2022-11-18 19:47:52,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401497172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:52,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761105705] [2022-11-18 19:47:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:52,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:52,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:52,080 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:52,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 19:47:52,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:52,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-18 19:47:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-18 19:47:52,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:52,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761105705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:52,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:52,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2022-11-18 19:47:52,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305302884] [2022-11-18 19:47:52,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:52,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:47:52,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:47:52,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812 [2022-11-18 19:47:52,591 INFO L87 Difference]: Start difference. First operand 386 states and 462 transitions. Second operand has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 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) [2022-11-18 19:47:52,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:52,935 INFO L93 Difference]: Finished difference Result 429 states and 506 transitions. [2022-11-18 19:47:52,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 19:47:52,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 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 [2022-11-18 19:47:52,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:52,937 INFO L225 Difference]: With dead ends: 429 [2022-11-18 19:47:52,938 INFO L226 Difference]: Without dead ends: 419 [2022-11-18 19:47:52,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2022-11-18 19:47:52,939 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 146 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:52,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 575 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:52,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2022-11-18 19:47:52,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 380. [2022-11-18 19:47:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 358 states have (on average 1.2094972067039107) internal successors, (433), 362 states have internal predecessors, (433), 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) [2022-11-18 19:47:52,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 453 transitions. [2022-11-18 19:47:52,991 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 453 transitions. Word has length 142 [2022-11-18 19:47:52,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:52,992 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 453 transitions. [2022-11-18 19:47:52,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 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) [2022-11-18 19:47:52,992 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 453 transitions. [2022-11-18 19:47:52,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-11-18 19:47:52,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:52,994 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:53,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:53,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 19:47:53,201 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:53,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:53,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1599267330, now seen corresponding path program 1 times [2022-11-18 19:47:53,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:53,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402744504] [2022-11-18 19:47:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:53,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:53,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:53,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:53,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:47:54,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,035 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 4 proven. 620 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 19:47:54,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:54,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402744504] [2022-11-18 19:47:54,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402744504] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:54,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [927757471] [2022-11-18 19:47:54,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:54,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:54,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:54,038 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:54,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 19:47:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:54,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-18 19:47:54,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2022-11-18 19:47:55,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:55,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [927757471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:55,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:55,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 31 [2022-11-18 19:47:55,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475354036] [2022-11-18 19:47:55,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:55,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 19:47:55,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:55,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 19:47:55,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=839, Unknown=0, NotChecked=0, Total=930 [2022-11-18 19:47:55,034 INFO L87 Difference]: Start difference. First operand 380 states and 453 transitions. Second operand has 13 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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) [2022-11-18 19:47:56,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:56,184 INFO L93 Difference]: Finished difference Result 625 states and 759 transitions. [2022-11-18 19:47:56,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 19:47:56,185 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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 [2022-11-18 19:47:56,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:56,188 INFO L225 Difference]: With dead ends: 625 [2022-11-18 19:47:56,188 INFO L226 Difference]: Without dead ends: 595 [2022-11-18 19:47:56,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=147, Invalid=1413, Unknown=0, NotChecked=0, Total=1560 [2022-11-18 19:47:56,189 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 215 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:56,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1558 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-18 19:47:56,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-18 19:47:56,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 420. [2022-11-18 19:47:56,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 395 states have (on average 1.2227848101265824) internal successors, (483), 400 states have internal predecessors, (483), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 15 states have call predecessors, (22), 7 states have call successors, (22) [2022-11-18 19:47:56,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 512 transitions. [2022-11-18 19:47:56,257 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 512 transitions. Word has length 142 [2022-11-18 19:47:56,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:56,257 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 512 transitions. [2022-11-18 19:47:56,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 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) [2022-11-18 19:47:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 512 transitions. [2022-11-18 19:47:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-18 19:47:56,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:56,260 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] [2022-11-18 19:47:56,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:56,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-18 19:47:56,467 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:56,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:56,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1570623591, now seen corresponding path program 1 times [2022-11-18 19:47:56,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:56,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896563358] [2022-11-18 19:47:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:56,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:56,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:47:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-18 19:47:57,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:57,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896563358] [2022-11-18 19:47:57,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896563358] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:57,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453495059] [2022-11-18 19:47:57,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:57,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:57,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:57,298 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:57,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 19:47:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:57,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-18 19:47:57,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:47:57,923 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2022-11-18 19:47:57,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:47:57,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453495059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:47:57,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:47:57,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [20] total 30 [2022-11-18 19:47:57,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639898217] [2022-11-18 19:47:57,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:47:57,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 19:47:57,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:47:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 19:47:57,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2022-11-18 19:47:57,925 INFO L87 Difference]: Start difference. First operand 420 states and 512 transitions. Second operand has 12 states, 10 states have (on average 4.8) internal successors, (48), 10 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) [2022-11-18 19:47:58,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:47:58,305 INFO L93 Difference]: Finished difference Result 458 states and 555 transitions. [2022-11-18 19:47:58,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 19:47:58,306 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 4.8) internal successors, (48), 10 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 [2022-11-18 19:47:58,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:47:58,308 INFO L225 Difference]: With dead ends: 458 [2022-11-18 19:47:58,308 INFO L226 Difference]: Without dead ends: 434 [2022-11-18 19:47:58,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=136, Invalid=1124, Unknown=0, NotChecked=0, Total=1260 [2022-11-18 19:47:58,309 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 108 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:47:58,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 569 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:47:58,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2022-11-18 19:47:58,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 397. [2022-11-18 19:47:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 373 states have (on average 1.225201072386059) internal successors, (457), 378 states have internal predecessors, (457), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (21), 14 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-18 19:47:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 485 transitions. [2022-11-18 19:47:58,389 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 485 transitions. Word has length 143 [2022-11-18 19:47:58,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:47:58,389 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 485 transitions. [2022-11-18 19:47:58,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 4.8) internal successors, (48), 10 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) [2022-11-18 19:47:58,389 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 485 transitions. [2022-11-18 19:47:58,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-18 19:47:58,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:47:58,392 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:47:58,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 19:47:58,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:58,598 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:47:58,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:47:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 302164358, now seen corresponding path program 1 times [2022-11-18 19:47:58,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:47:58,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995786621] [2022-11-18 19:47:58,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:58,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:47:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:58,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:47:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:47:58,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:47:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:47:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 4 proven. 615 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:47:59,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:47:59,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995786621] [2022-11-18 19:47:59,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995786621] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:47:59,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760818849] [2022-11-18 19:47:59,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:47:59,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:47:59,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:47:59,430 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:47:59,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-18 19:47:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:47:59,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 19:47:59,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:00,077 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-18 19:48:00,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:48:00,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760818849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:00,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 19:48:00,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2022-11-18 19:48:00,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977496095] [2022-11-18 19:48:00,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:00,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 19:48:00,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:00,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 19:48:00,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2022-11-18 19:48:00,080 INFO L87 Difference]: Start difference. First operand 397 states and 485 transitions. Second operand has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2022-11-18 19:48:00,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:00,693 INFO L93 Difference]: Finished difference Result 592 states and 708 transitions. [2022-11-18 19:48:00,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 19:48:00,694 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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 143 [2022-11-18 19:48:00,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:00,696 INFO L225 Difference]: With dead ends: 592 [2022-11-18 19:48:00,696 INFO L226 Difference]: Without dead ends: 572 [2022-11-18 19:48:00,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=134, Invalid=1198, Unknown=0, NotChecked=0, Total=1332 [2022-11-18 19:48:00,698 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 265 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:00,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 688 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 19:48:00,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2022-11-18 19:48:00,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 423. [2022-11-18 19:48:00,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 399 states have (on average 1.2330827067669172) internal successors, (492), 401 states have internal predecessors, (492), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (21), 17 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-18 19:48:00,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 520 transitions. [2022-11-18 19:48:00,765 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 520 transitions. Word has length 143 [2022-11-18 19:48:00,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:00,765 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 520 transitions. [2022-11-18 19:48:00,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 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) [2022-11-18 19:48:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 520 transitions. [2022-11-18 19:48:00,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-18 19:48:00,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:00,768 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:00,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-18 19:48:00,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:48:00,975 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:48:00,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:00,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1690562252, now seen corresponding path program 1 times [2022-11-18 19:48:00,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:00,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551039939] [2022-11-18 19:48:00,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:00,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:01,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:48:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:48:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:01,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:48:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:01,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:48:01,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-18 19:48:01,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:01,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551039939] [2022-11-18 19:48:01,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551039939] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:48:01,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451036447] [2022-11-18 19:48:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:01,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:48:01,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:01,259 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:48:01,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-18 19:48:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:01,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 19:48:01,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:01,535 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-18 19:48:01,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:48:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2022-11-18 19:48:01,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451036447] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:48:01,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:48:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2022-11-18 19:48:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464534243] [2022-11-18 19:48:01,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:48:01,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 19:48:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 19:48:01,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2022-11-18 19:48:01,745 INFO L87 Difference]: Start difference. First operand 423 states and 520 transitions. Second operand has 24 states, 24 states have (on average 3.875) internal successors, (93), 21 states have internal predecessors, (93), 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) [2022-11-18 19:48:03,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:03,431 INFO L93 Difference]: Finished difference Result 1173 states and 1362 transitions. [2022-11-18 19:48:03,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-11-18 19:48:03,432 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 21 states have internal predecessors, (93), 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 [2022-11-18 19:48:03,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:03,437 INFO L225 Difference]: With dead ends: 1173 [2022-11-18 19:48:03,437 INFO L226 Difference]: Without dead ends: 1153 [2022-11-18 19:48:03,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 845 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=513, Invalid=3027, Unknown=0, NotChecked=0, Total=3540 [2022-11-18 19:48:03,440 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 781 mSDsluCounter, 2558 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:03,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 2769 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-18 19:48:03,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2022-11-18 19:48:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 429. [2022-11-18 19:48:03,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 405 states have (on average 1.2345679012345678) internal successors, (500), 406 states have internal predecessors, (500), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (21), 18 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-18 19:48:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 528 transitions. [2022-11-18 19:48:03,526 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 528 transitions. Word has length 143 [2022-11-18 19:48:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:03,526 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 528 transitions. [2022-11-18 19:48:03,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 21 states have internal predecessors, (93), 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) [2022-11-18 19:48:03,527 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 528 transitions. [2022-11-18 19:48:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-18 19:48:03,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:03,529 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:03,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-18 19:48:03,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-18 19:48:03,735 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:48:03,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:03,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1690564174, now seen corresponding path program 1 times [2022-11-18 19:48:03,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:03,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691979793] [2022-11-18 19:48:03,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:03,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:04,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:48:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:04,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:48:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:48:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 19:48:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:04,605 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 4 proven. 615 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-18 19:48:04,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:04,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691979793] [2022-11-18 19:48:04,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691979793] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:48:04,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269413562] [2022-11-18 19:48:04,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:04,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:48:04,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:04,610 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:48:04,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-18 19:48:04,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:04,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-18 19:48:04,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-18 19:48:05,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:48:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2022-11-18 19:48:06,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269413562] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:48:06,332 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:48:06,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 10] total 39 [2022-11-18 19:48:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780996079] [2022-11-18 19:48:06,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:48:06,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-18 19:48:06,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:06,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-18 19:48:06,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1364, Unknown=0, NotChecked=0, Total=1482 [2022-11-18 19:48:06,335 INFO L87 Difference]: Start difference. First operand 429 states and 528 transitions. Second operand has 39 states, 39 states have (on average 5.051282051282051) internal successors, (197), 37 states have internal predecessors, (197), 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) [2022-11-18 19:48:11,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:11,132 INFO L93 Difference]: Finished difference Result 1309 states and 1616 transitions. [2022-11-18 19:48:11,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-18 19:48:11,133 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.051282051282051) internal successors, (197), 37 states have internal predecessors, (197), 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 [2022-11-18 19:48:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:11,138 INFO L225 Difference]: With dead ends: 1309 [2022-11-18 19:48:11,138 INFO L226 Difference]: Without dead ends: 1051 [2022-11-18 19:48:11,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 717 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=741, Invalid=4809, Unknown=0, NotChecked=0, Total=5550 [2022-11-18 19:48:11,141 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 809 mSDsluCounter, 4258 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 4499 SdHoareTripleChecker+Invalid, 3017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:11,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 4499 Invalid, 3017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-18 19:48:11,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-11-18 19:48:11,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 443. [2022-11-18 19:48:11,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 419 states have (on average 1.2386634844868736) internal successors, (519), 417 states have internal predecessors, (519), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (21), 21 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-18 19:48:11,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 547 transitions. [2022-11-18 19:48:11,221 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 547 transitions. Word has length 143 [2022-11-18 19:48:11,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:11,222 INFO L495 AbstractCegarLoop]: Abstraction has 443 states and 547 transitions. [2022-11-18 19:48:11,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.051282051282051) internal successors, (197), 37 states have internal predecessors, (197), 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) [2022-11-18 19:48:11,222 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 547 transitions. [2022-11-18 19:48:11,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-18 19:48:11,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:11,225 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 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, 1, 1, 1, 1] [2022-11-18 19:48:11,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-18 19:48:11,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-18 19:48:11,431 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:48:11,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:11,432 INFO L85 PathProgramCache]: Analyzing trace with hash 48209371, now seen corresponding path program 1 times [2022-11-18 19:48:11,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:11,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870755597] [2022-11-18 19:48:11,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:11,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:48:11,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:48:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 19:48:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:48:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,496 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2022-11-18 19:48:11,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:11,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870755597] [2022-11-18 19:48:11,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870755597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:48:11,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:48:11,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:48:11,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842488743] [2022-11-18 19:48:11,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:48:11,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:48:11,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:11,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:48:11,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:48:11,499 INFO L87 Difference]: Start difference. First operand 443 states and 547 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-18 19:48:11,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:48:11,600 INFO L93 Difference]: Finished difference Result 749 states and 958 transitions. [2022-11-18 19:48:11,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:48:11,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 148 [2022-11-18 19:48:11,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:48:11,603 INFO L225 Difference]: With dead ends: 749 [2022-11-18 19:48:11,603 INFO L226 Difference]: Without dead ends: 481 [2022-11-18 19:48:11,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:48:11,604 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:48:11,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 160 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:48:11,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2022-11-18 19:48:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 458. [2022-11-18 19:48:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 434 states have (on average 1.2304147465437787) internal successors, (534), 432 states have internal predecessors, (534), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (21), 21 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-18 19:48:11,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 562 transitions. [2022-11-18 19:48:11,673 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 562 transitions. Word has length 148 [2022-11-18 19:48:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:48:11,674 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 562 transitions. [2022-11-18 19:48:11,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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) [2022-11-18 19:48:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 562 transitions. [2022-11-18 19:48:11,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-18 19:48:11,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:48:11,677 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:48:11,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-18 19:48:11,677 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:48:11,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:48:11,677 INFO L85 PathProgramCache]: Analyzing trace with hash -866492925, now seen corresponding path program 1 times [2022-11-18 19:48:11,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:48:11,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350294613] [2022-11-18 19:48:11,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:11,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:48:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:48:11,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:11,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-18 19:48:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 19:48:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-18 19:48:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:12,533 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 4 proven. 700 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 19:48:12,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:48:12,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350294613] [2022-11-18 19:48:12,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350294613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 19:48:12,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697796941] [2022-11-18 19:48:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:48:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 19:48:12,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:48:12,535 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 19:48:12,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-18 19:48:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:48:12,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-18 19:48:12,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 36 proven. 680 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 19:48:13,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:48:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 730 backedges. 4 proven. 700 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-18 19:48:14,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697796941] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:48:14,762 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 19:48:14,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 58 [2022-11-18 19:48:14,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050115435] [2022-11-18 19:48:14,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 19:48:14,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-11-18 19:48:14,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:48:14,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-11-18 19:48:14,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=761, Invalid=2545, Unknown=0, NotChecked=0, Total=3306 [2022-11-18 19:48:14,766 INFO L87 Difference]: Start difference. First operand 458 states and 562 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) [2022-11-18 19:48:30,093 WARN L233 SmtUtils]: Spent 12.38s 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) [2022-11-18 19:48:39,176 WARN L233 SmtUtils]: Spent 7.04s 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) [2022-11-18 19:48:52,660 WARN L233 SmtUtils]: Spent 10.86s on a formula simplification. DAG size of input: 53 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:49:01,609 WARN L233 SmtUtils]: Spent 6.04s 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) [2022-11-18 19:49:07,893 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 [] [2022-11-18 19:49:10,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:49:12,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:49:14,077 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 [] [2022-11-18 19:49:37,242 WARN L233 SmtUtils]: Spent 9.65s on a formula simplification. DAG size of input: 76 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:51:40,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:51:40,132 INFO L93 Difference]: Finished difference Result 1812 states and 2390 transitions. [2022-11-18 19:51:40,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-11-18 19:51:40,133 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 149 [2022-11-18 19:51:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:51:40,138 INFO L225 Difference]: With dead ends: 1812 [2022-11-18 19:51:40,138 INFO L226 Difference]: Without dead ends: 1498 [2022-11-18 19:51:40,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2284 ImplicationChecksByTransitivity, 189.1s TimeCoverageRelationStatistics Valid=2718, Invalid=6550, Unknown=44, NotChecked=0, Total=9312 [2022-11-18 19:51:40,143 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 1086 mSDsluCounter, 4350 mSDsCounter, 0 mSdLazyCounter, 5572 mSolverCounterSat, 460 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 4558 SdHoareTripleChecker+Invalid, 6035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 5572 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:51:40,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1086 Valid, 4558 Invalid, 6035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 5572 Invalid, 3 Unknown, 0 Unchecked, 17.1s Time] [2022-11-18 19:51:40,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2022-11-18 19:51:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 486. [2022-11-18 19:51:40,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 462 states have (on average 1.2012987012987013) internal successors, (555), 460 states have internal predecessors, (555), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (21), 21 states have call predecessors, (21), 7 states have call successors, (21) [2022-11-18 19:51:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 583 transitions. [2022-11-18 19:51:40,263 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 583 transitions. Word has length 149 [2022-11-18 19:51:40,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:51:40,264 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 583 transitions. [2022-11-18 19:51:40,264 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) [2022-11-18 19:51:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 583 transitions. [2022-11-18 19:51:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:51:40,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:51:40,266 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:51:40,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-11-18 19:51:40,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2022-11-18 19:51:40,472 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 19:51:40,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:51:40,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2361945, now seen corresponding path program 2 times [2022-11-18 19:51:40,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:51:40,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463762796] [2022-11-18 19:51:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:51:40,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:51:40,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:51:40,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:51:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:51:40,620 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:51:40,620 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:51:40,621 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2022-11-18 19:51:40,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2022-11-18 19:51:40,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2022-11-18 19:51:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2022-11-18 19:51:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2022-11-18 19:51:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2022-11-18 19:51:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2022-11-18 19:51:40,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2022-11-18 19:51:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2022-11-18 19:51:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2022-11-18 19:51:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2022-11-18 19:51:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2022-11-18 19:51:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2022-11-18 19:51:40,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2022-11-18 19:51:40,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2022-11-18 19:51:40,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2022-11-18 19:51:40,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-18 19:51:40,630 INFO L444 BasicCegarLoop]: Path program histogram: [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] [2022-11-18 19:51:40,634 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:51:40,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:51:40 BoogieIcfgContainer [2022-11-18 19:51:40,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:51:40,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:51:40,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:51:40,701 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:51:40,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:46:57" (3/4) ... [2022-11-18 19:51:40,704 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:51:40,704 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:51:40,705 INFO L158 Benchmark]: Toolchain (without parser) took 284828.99ms. Allocated memory was 151.0MB in the beginning and 390.1MB in the end (delta: 239.1MB). Free memory was 117.5MB in the beginning and 262.8MB in the end (delta: -145.2MB). Peak memory consumption was 93.0MB. Max. memory is 16.1GB. [2022-11-18 19:51:40,705 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:51:40,705 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.63ms. Allocated memory is still 151.0MB. Free memory was 117.2MB in the beginning and 123.1MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:51:40,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory is still 151.0MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:51:40,706 INFO L158 Benchmark]: Boogie Preprocessor took 29.99ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 119.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:51:40,706 INFO L158 Benchmark]: RCFGBuilder took 731.36ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 97.9MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-18 19:51:40,706 INFO L158 Benchmark]: TraceAbstraction took 283562.55ms. Allocated memory was 151.0MB in the beginning and 390.1MB in the end (delta: 239.1MB). Free memory was 97.2MB in the beginning and 262.8MB in the end (delta: -165.6MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. [2022-11-18 19:51:40,706 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 390.1MB. Free memory is still 262.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:51:40,708 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory is still 43.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.63ms. Allocated memory is still 151.0MB. Free memory was 117.2MB in the beginning and 123.1MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.01ms. Allocated memory is still 151.0MB. Free memory was 123.1MB in the beginning and 121.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.99ms. Allocated memory is still 151.0MB. Free memory was 121.0MB in the beginning and 119.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 731.36ms. Allocated memory is still 151.0MB. Free memory was 119.3MB in the beginning and 97.9MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 283562.55ms. Allocated memory was 151.0MB in the beginning and 390.1MB in the end (delta: 239.1MB). Free memory was 97.2MB in the beginning and 262.8MB in the end (delta: -165.6MB). Peak memory consumption was 74.9MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 390.1MB. Free memory is still 262.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=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 [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0, res=1744830464] [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464] [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 [\old(e)=-127, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0, res=16777216] [L78] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [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 [\old(e)=-128, \old(m)=33554431] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L29] COND FALSE !(! m) VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L57] COND TRUE 1 VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L77] EXPR e + 128 VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-128, \old(m)=33554431, e=-128, m=33554431, res=33554431] [L78] __retres4 = res VAL [\old(e)=-128, \old(m)=33554431, __retres4=33554431, e=-128, m=33554431, res=33554431] [L80] return (__retres4); VAL [\old(e)=-128, \old(m)=33554431, \result=-36028796985409537, __retres4=33554431, e=-128, m=33554431, res=33554431] [L241] RET, EXPR base2flt(mb, eb) VAL [a=16777216, base2flt(mb, eb)=-36028796985409537, ea=-127, eb=-128, ma=16777216, mb=33554431, one=1744830464, zero=0] [L241] b = base2flt(mb, eb) [L243] COND FALSE !(b < zero) VAL [a=16777216, b=33554431, ea=-127, eb=-128, ma=16777216, mb=33554431, one=1744830464, zero=0] [L246] COND TRUE b > zero [L247] tmp = 1 VAL [a=16777216, b=33554431, ea=-127, eb=-128, ma=16777216, mb=33554431, one=1744830464, tmp=1, zero=0] [L251] sb = tmp VAL [a=16777216, b=33554431, ea=-127, eb=-128, ma=16777216, mb=33554431, one=1744830464, sb=1, tmp=1, zero=0] [L254] 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 [\old(a)=16777216, \old(b)=33554431, a=16777216, b=33554431] [L158] COND TRUE a < b [L159] tmp = a [L160] a = b [L161] b = tmp VAL [\old(a)=16777216, \old(b)=33554431, a=33554431, b=16777216, tmp=16777216] [L165] COND FALSE !(! b) VAL [\old(a)=16777216, \old(b)=33554431, a=33554431, b=16777216, tmp=16777216] [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=16777216, \old(b)=33554431, a=33554431, b=16777216, ma=0, tmp=16777216] [L172] (int )(a >> 24U) - 128 VAL [\old(a)=16777216, \old(b)=33554431, a=33554431, b=16777216, ma=0, tmp=16777216] - 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 100 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 283.4s, OverallIterations: 36, TraceHistogramMax: 24, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 251.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 10194 SdHoareTripleChecker+Valid, 27.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10155 mSDsluCounter, 31375 SdHoareTripleChecker+Invalid, 25.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27733 mSDsCounter, 1300 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17614 IncrementalHoareTripleChecker+Invalid, 18917 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1300 mSolverCounterUnsat, 3642 mSDtfsCounter, 17614 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4175 GetRequests, 3365 SyntacticMatches, 0 SemanticMatches, 810 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6841 ImplicationChecksByTransitivity, 229.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=486occurred in iteration=35, InterpolantAutomatonStates: 573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 35 MinimizatonAttempts, 7178 StatesRemovedByMinimization, 34 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 21.9s InterpolantComputationTime, 5020 NumberOfCodeBlocks, 4835 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 5918 ConstructedInterpolants, 0 QuantifiedInterpolants, 23121 SizeOfPredicates, 104 NumberOfNonLiveVariables, 4717 ConjunctsInSsa, 435 ConjunctsInUnsatCore, 68 InterpolantComputations, 23 PerfectInterpolantSequences, 9698/18590 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 [2022-11-18 19:51:40,939 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-18 19:51:40,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b07c28a8-85b9-4874-acfc-401b6878840f/bin/uautomizer-TMbwUNV5ro/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample