./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa --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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:21:02,357 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:21:02,358 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:21:02,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:21:02,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:21:02,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:21:02,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:21:02,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:21:02,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:21:02,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:21:02,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:21:02,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:21:02,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:21:02,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:21:02,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:21:02,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:21:02,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:21:02,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:21:02,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:21:02,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:21:02,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:21:02,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:21:02,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:21:02,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:21:02,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:21:02,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:21:02,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:21:02,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:21:02,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:21:02,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:21:02,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:21:02,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:21:02,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:21:02,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:21:02,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:21:02,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:21:02,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:21:02,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:21:02,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:21:02,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:21:02,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:21:02,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-06 19:21:02,450 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:21:02,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:21:02,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:21:02,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:21:02,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 19:21:02,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 19:21:02,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:21:02,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:21:02,453 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:21:02,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:21:02,453 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 19:21:02,454 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:21:02,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:21:02,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 19:21:02,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:21:02,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 19:21:02,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 19:21:02,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 19:21:02,455 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-06 19:21:02,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 19:21:02,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:21:02,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:21:02,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 19:21:02,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:21:02,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:21:02,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 19:21:02,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:21:02,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:21:02,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 19:21:02,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 19:21:02,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:21:02,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 19:21:02,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 19:21:02,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:21:02,458 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_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2021-12-06 19:21:02,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:21:02,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:21:02,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:21:02,680 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:21:02,681 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:21:02,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-12-06 19:21:02,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/data/21158ac52/7fa49618989a42408da5e1717e210d9c/FLAGc10d9e958 [2021-12-06 19:21:03,094 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:21:03,095 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2021-12-06 19:21:03,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/data/21158ac52/7fa49618989a42408da5e1717e210d9c/FLAGc10d9e958 [2021-12-06 19:21:03,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/data/21158ac52/7fa49618989a42408da5e1717e210d9c [2021-12-06 19:21:03,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:21:03,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:21:03,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:21:03,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:21:03,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:21:03,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,120 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@530a789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03, skipping insertion in model container [2021-12-06 19:21:03,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:21:03,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:21:03,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2021-12-06 19:21:03,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:21:03,293 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:21:03,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c[728,741] [2021-12-06 19:21:03,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:21:03,337 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:21:03,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03 WrapperNode [2021-12-06 19:21:03,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:21:03,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:21:03,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:21:03,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:21:03,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,384 INFO L137 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 124 [2021-12-06 19:21:03,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:21:03,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:21:03,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:21:03,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:21:03,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:21:03,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:21:03,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:21:03,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:21:03,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (1/1) ... [2021-12-06 19:21:03,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 19:21:03,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:03,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 19:21:03,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 19:21:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 19:21:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 19:21:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-06 19:21:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-06 19:21:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:21:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:21:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 19:21:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 19:21:03,515 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:21:03,516 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:21:03,728 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:21:03,735 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:21:03,735 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 19:21:03,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:21:03 BoogieIcfgContainer [2021-12-06 19:21:03,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:21:03,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 19:21:03,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 19:21:03,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 19:21:03,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:21:03" (1/3) ... [2021-12-06 19:21:03,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762a02bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:21:03, skipping insertion in model container [2021-12-06 19:21:03,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:21:03" (2/3) ... [2021-12-06 19:21:03,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762a02bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:21:03, skipping insertion in model container [2021-12-06 19:21:03,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:21:03" (3/3) ... [2021-12-06 19:21:03,746 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2021-12-06 19:21:03,751 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 19:21:03,751 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2021-12-06 19:21:03,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 19:21:03,797 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 19:21:03,797 INFO L340 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2021-12-06 19:21:03,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 61 states have (on average 1.6721311475409837) internal successors, (102), 80 states have internal predecessors, (102), 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) [2021-12-06 19:21:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:21:03,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:03,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:03,816 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:03,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:03,820 INFO L85 PathProgramCache]: Analyzing trace with hash -146311098, now seen corresponding path program 1 times [2021-12-06 19:21:03,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:03,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627995115] [2021-12-06 19:21:03,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:03,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:21:03,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:03,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627995115] [2021-12-06 19:21:03,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627995115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:03,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:03,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:21:03,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583181104] [2021-12-06 19:21:03,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:03,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 19:21:03,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:03,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 19:21:03,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 19:21:03,953 INFO L87 Difference]: Start difference. First operand has 87 states, 61 states have (on average 1.6721311475409837) internal successors, (102), 80 states have internal predecessors, (102), 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) [2021-12-06 19:21:03,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:03,975 INFO L93 Difference]: Finished difference Result 169 states and 225 transitions. [2021-12-06 19:21:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 19:21:03,977 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 [2021-12-06 19:21:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:03,983 INFO L225 Difference]: With dead ends: 169 [2021-12-06 19:21:03,984 INFO L226 Difference]: Without dead ends: 69 [2021-12-06 19:21:03,987 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:03,989 INFO L933 BasicCegarLoop]: 105 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, 105 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 [2021-12-06 19:21:03,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:04,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-12-06 19:21:04,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-12-06 19:21:04,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 48 states have (on average 1.5208333333333333) internal successors, (73), 63 states have internal predecessors, (73), 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) [2021-12-06 19:21:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 81 transitions. [2021-12-06 19:21:04,019 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 81 transitions. Word has length 9 [2021-12-06 19:21:04,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:04,019 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 81 transitions. [2021-12-06 19:21:04,019 INFO L471 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) [2021-12-06 19:21:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 81 transitions. [2021-12-06 19:21:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-06 19:21:04,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:04,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:04,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 19:21:04,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:04,022 INFO L85 PathProgramCache]: Analyzing trace with hash -147252364, now seen corresponding path program 1 times [2021-12-06 19:21:04,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:04,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399936862] [2021-12-06 19:21:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:21:04,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:04,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399936862] [2021-12-06 19:21:04,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399936862] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:04,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:04,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:21:04,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388277665] [2021-12-06 19:21:04,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:04,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:21:04,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:04,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:21:04,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:21:04,067 INFO L87 Difference]: Start difference. First operand 69 states and 81 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) [2021-12-06 19:21:04,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:04,137 INFO L93 Difference]: Finished difference Result 175 states and 215 transitions. [2021-12-06 19:21:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:21:04,138 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 [2021-12-06 19:21:04,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:04,140 INFO L225 Difference]: With dead ends: 175 [2021-12-06 19:21:04,140 INFO L226 Difference]: Without dead ends: 109 [2021-12-06 19:21:04,141 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:04,142 INFO L933 BasicCegarLoop]: 70 mSDtfsCounter, 56 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:04,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 206 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:04,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-12-06 19:21:04,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2021-12-06 19:21:04,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.4871794871794872) internal successors, (116), 93 states have internal predecessors, (116), 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) [2021-12-06 19:21:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2021-12-06 19:21:04,155 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 9 [2021-12-06 19:21:04,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:04,155 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2021-12-06 19:21:04,155 INFO L471 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) [2021-12-06 19:21:04,156 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2021-12-06 19:21:04,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 19:21:04,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:04,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:04,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 19:21:04,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:04,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:04,157 INFO L85 PathProgramCache]: Analyzing trace with hash 900800379, now seen corresponding path program 1 times [2021-12-06 19:21:04,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:04,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057165178] [2021-12-06 19:21:04,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:21:04,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:04,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057165178] [2021-12-06 19:21:04,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057165178] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:04,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:04,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:21:04,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179644077] [2021-12-06 19:21:04,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:04,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:04,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:04,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:04,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:04,198 INFO L87 Difference]: Start difference. First operand 100 states and 124 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) [2021-12-06 19:21:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:04,269 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2021-12-06 19:21:04,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:21:04,269 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 [2021-12-06 19:21:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:04,270 INFO L225 Difference]: With dead ends: 119 [2021-12-06 19:21:04,270 INFO L226 Difference]: Without dead ends: 117 [2021-12-06 19:21:04,271 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:04,272 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:04,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 279 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-06 19:21:04,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2021-12-06 19:21:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.4625) internal successors, (117), 95 states have internal predecessors, (117), 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) [2021-12-06 19:21:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 125 transitions. [2021-12-06 19:21:04,282 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 125 transitions. Word has length 13 [2021-12-06 19:21:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:04,282 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 125 transitions. [2021-12-06 19:21:04,283 INFO L471 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) [2021-12-06 19:21:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 125 transitions. [2021-12-06 19:21:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 19:21:04,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:04,283 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:04,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 19:21:04,284 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:04,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2139959222, now seen corresponding path program 1 times [2021-12-06 19:21:04,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:04,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812627030] [2021-12-06 19:21:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:04,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:21:04,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:04,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812627030] [2021-12-06 19:21:04,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812627030] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:04,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:04,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:21:04,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783374398] [2021-12-06 19:21:04,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:04,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:04,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:04,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:04,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:04,325 INFO L87 Difference]: Start difference. First operand 102 states and 125 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) [2021-12-06 19:21:04,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:04,387 INFO L93 Difference]: Finished difference Result 222 states and 272 transitions. [2021-12-06 19:21:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:21:04,388 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 [2021-12-06 19:21:04,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:04,389 INFO L225 Difference]: With dead ends: 222 [2021-12-06 19:21:04,389 INFO L226 Difference]: Without dead ends: 123 [2021-12-06 19:21:04,391 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:04,392 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 94 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:04,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 220 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:04,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-06 19:21:04,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2021-12-06 19:21:04,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 84 states have (on average 1.4404761904761905) internal successors, (121), 99 states have internal predecessors, (121), 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) [2021-12-06 19:21:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 129 transitions. [2021-12-06 19:21:04,404 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 129 transitions. Word has length 14 [2021-12-06 19:21:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:04,405 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 129 transitions. [2021-12-06 19:21:04,405 INFO L471 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) [2021-12-06 19:21:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 129 transitions. [2021-12-06 19:21:04,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 19:21:04,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:04,406 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:04,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 19:21:04,406 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:04,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash 762086754, now seen corresponding path program 1 times [2021-12-06 19:21:04,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:04,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188177606] [2021-12-06 19:21:04,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-12-06 19:21:04,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:04,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188177606] [2021-12-06 19:21:04,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188177606] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:04,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:04,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:21:04,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451002742] [2021-12-06 19:21:04,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:04,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 19:21:04,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:04,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:21:04,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:21:04,438 INFO L87 Difference]: Start difference. First operand 106 states and 129 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) [2021-12-06 19:21:04,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:04,453 INFO L93 Difference]: Finished difference Result 112 states and 137 transitions. [2021-12-06 19:21:04,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:21:04,454 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 [2021-12-06 19:21:04,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:04,455 INFO L225 Difference]: With dead ends: 112 [2021-12-06 19:21:04,455 INFO L226 Difference]: Without dead ends: 111 [2021-12-06 19:21:04,455 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:04,456 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:04,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 151 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:04,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-12-06 19:21:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 104. [2021-12-06 19:21:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 97 states have internal predecessors, (118), 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) [2021-12-06 19:21:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2021-12-06 19:21:04,465 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 15 [2021-12-06 19:21:04,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:04,465 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2021-12-06 19:21:04,465 INFO L471 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) [2021-12-06 19:21:04,465 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2021-12-06 19:21:04,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 19:21:04,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:04,467 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:04,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 19:21:04,467 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:04,468 INFO L85 PathProgramCache]: Analyzing trace with hash 762088932, now seen corresponding path program 1 times [2021-12-06 19:21:04,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:04,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867757983] [2021-12-06 19:21:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:21:04,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:04,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867757983] [2021-12-06 19:21:04,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867757983] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:04,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282522259] [2021-12-06 19:21:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:04,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:04,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:04,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 19:21:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 19:21:04,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:21:04,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:21:04,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282522259] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:04,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:21:04,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-12-06 19:21:04,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883531288] [2021-12-06 19:21:04,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:04,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:21:04,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:21:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:21:04,592 INFO L87 Difference]: Start difference. First operand 104 states and 126 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) [2021-12-06 19:21:04,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:04,622 INFO L93 Difference]: Finished difference Result 124 states and 153 transitions. [2021-12-06 19:21:04,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:21:04,622 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 [2021-12-06 19:21:04,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:04,624 INFO L225 Difference]: With dead ends: 124 [2021-12-06 19:21:04,624 INFO L226 Difference]: Without dead ends: 123 [2021-12-06 19:21:04,624 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:04,625 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 10 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:04,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 236 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-12-06 19:21:04,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2021-12-06 19:21:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 85 states have (on average 1.411764705882353) internal successors, (120), 99 states have internal predecessors, (120), 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) [2021-12-06 19:21:04,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 128 transitions. [2021-12-06 19:21:04,637 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 128 transitions. Word has length 15 [2021-12-06 19:21:04,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:04,637 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 128 transitions. [2021-12-06 19:21:04,638 INFO L471 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) [2021-12-06 19:21:04,638 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 128 transitions. [2021-12-06 19:21:04,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 19:21:04,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:04,639 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:04,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:21:04,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:04,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:04,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:04,843 INFO L85 PathProgramCache]: Analyzing trace with hash 636845412, now seen corresponding path program 1 times [2021-12-06 19:21:04,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:04,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83780107] [2021-12-06 19:21:04,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:04,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:04,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:04,971 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-06 19:21:04,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:04,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83780107] [2021-12-06 19:21:04,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83780107] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:04,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:04,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:21:04,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394842418] [2021-12-06 19:21:04,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:04,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 19:21:04,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:04,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:21:04,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:21:04,979 INFO L87 Difference]: Start difference. First operand 106 states and 128 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) [2021-12-06 19:21:05,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:05,026 INFO L93 Difference]: Finished difference Result 127 states and 155 transitions. [2021-12-06 19:21:05,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:21:05,027 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 [2021-12-06 19:21:05,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:05,029 INFO L225 Difference]: With dead ends: 127 [2021-12-06 19:21:05,029 INFO L226 Difference]: Without dead ends: 125 [2021-12-06 19:21:05,029 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:05,030 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 10 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:05,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 221 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:05,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-12-06 19:21:05,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 103. [2021-12-06 19:21:05,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 83 states have (on average 1.3975903614457832) internal successors, (116), 96 states have internal predecessors, (116), 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) [2021-12-06 19:21:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 124 transitions. [2021-12-06 19:21:05,040 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 124 transitions. Word has length 19 [2021-12-06 19:21:05,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:05,040 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 124 transitions. [2021-12-06 19:21:05,040 INFO L471 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) [2021-12-06 19:21:05,040 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 124 transitions. [2021-12-06 19:21:05,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-06 19:21:05,041 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:05,041 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:05,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 19:21:05,041 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:05,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:05,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1627476746, now seen corresponding path program 1 times [2021-12-06 19:21:05,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:05,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269194157] [2021-12-06 19:21:05,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:05,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 19:21:05,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:05,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269194157] [2021-12-06 19:21:05,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269194157] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:05,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:05,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:21:05,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331918581] [2021-12-06 19:21:05,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:05,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:05,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:05,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:05,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:05,085 INFO L87 Difference]: Start difference. First operand 103 states and 124 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) [2021-12-06 19:21:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:05,128 INFO L93 Difference]: Finished difference Result 147 states and 178 transitions. [2021-12-06 19:21:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:21:05,128 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 [2021-12-06 19:21:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:05,130 INFO L225 Difference]: With dead ends: 147 [2021-12-06 19:21:05,130 INFO L226 Difference]: Without dead ends: 145 [2021-12-06 19:21:05,130 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:05,131 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 96 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:05,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 219 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-12-06 19:21:05,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 125. [2021-12-06 19:21:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 104 states have (on average 1.3942307692307692) internal successors, (145), 117 states have internal predecessors, (145), 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) [2021-12-06 19:21:05,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 153 transitions. [2021-12-06 19:21:05,139 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 153 transitions. Word has length 23 [2021-12-06 19:21:05,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:05,139 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 153 transitions. [2021-12-06 19:21:05,139 INFO L471 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) [2021-12-06 19:21:05,139 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 153 transitions. [2021-12-06 19:21:05,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-12-06 19:21:05,140 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:05,141 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:05,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 19:21:05,141 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:05,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash 250392734, now seen corresponding path program 1 times [2021-12-06 19:21:05,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:05,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400607824] [2021-12-06 19:21:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:05,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-06 19:21:05,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:05,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400607824] [2021-12-06 19:21:05,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400607824] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:05,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:05,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:21:05,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392800025] [2021-12-06 19:21:05,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:05,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:05,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:05,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:05,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:05,181 INFO L87 Difference]: Start difference. First operand 125 states and 153 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) [2021-12-06 19:21:05,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:05,227 INFO L93 Difference]: Finished difference Result 141 states and 169 transitions. [2021-12-06 19:21:05,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:21:05,228 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 [2021-12-06 19:21:05,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:05,229 INFO L225 Difference]: With dead ends: 141 [2021-12-06 19:21:05,229 INFO L226 Difference]: Without dead ends: 139 [2021-12-06 19:21:05,230 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:05,230 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 85 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:05,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 221 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:05,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-12-06 19:21:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 122. [2021-12-06 19:21:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 101 states have (on average 1.386138613861386) internal successors, (140), 114 states have internal predecessors, (140), 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) [2021-12-06 19:21:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 148 transitions. [2021-12-06 19:21:05,240 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 148 transitions. Word has length 25 [2021-12-06 19:21:05,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:05,241 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 148 transitions. [2021-12-06 19:21:05,241 INFO L471 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) [2021-12-06 19:21:05,241 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 148 transitions. [2021-12-06 19:21:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-12-06 19:21:05,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:05,243 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:05,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 19:21:05,243 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:05,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1374389772, now seen corresponding path program 1 times [2021-12-06 19:21:05,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:05,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756449072] [2021-12-06 19:21:05,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:05,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:21:05,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 19:21:05,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:05,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756449072] [2021-12-06 19:21:05,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756449072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:05,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:05,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:21:05,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001176649] [2021-12-06 19:21:05,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:05,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:05,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:05,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:05,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:05,293 INFO L87 Difference]: Start difference. First operand 122 states and 148 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) [2021-12-06 19:21:05,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:05,338 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2021-12-06 19:21:05,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:21:05,339 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 [2021-12-06 19:21:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:05,340 INFO L225 Difference]: With dead ends: 136 [2021-12-06 19:21:05,340 INFO L226 Difference]: Without dead ends: 134 [2021-12-06 19:21:05,341 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:05,341 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 94 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:05,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 212 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:05,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-12-06 19:21:05,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 116. [2021-12-06 19:21:05,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 97 states have (on average 1.3608247422680413) internal successors, (132), 108 states have internal predecessors, (132), 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) [2021-12-06 19:21:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 140 transitions. [2021-12-06 19:21:05,351 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 140 transitions. Word has length 30 [2021-12-06 19:21:05,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:05,351 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 140 transitions. [2021-12-06 19:21:05,352 INFO L471 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) [2021-12-06 19:21:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 140 transitions. [2021-12-06 19:21:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-06 19:21:05,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:05,353 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:21:05,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 19:21:05,353 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:05,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:05,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1173906380, now seen corresponding path program 1 times [2021-12-06 19:21:05,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:05,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887430113] [2021-12-06 19:21:05,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:05,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:21:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,395 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-06 19:21:05,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:05,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887430113] [2021-12-06 19:21:05,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887430113] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:05,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:21:05,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 19:21:05,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380229537] [2021-12-06 19:21:05,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:05,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 19:21:05,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:05,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 19:21:05,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 19:21:05,398 INFO L87 Difference]: Start difference. First operand 116 states and 140 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) [2021-12-06 19:21:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:05,441 INFO L93 Difference]: Finished difference Result 130 states and 156 transitions. [2021-12-06 19:21:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 19:21:05,441 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 [2021-12-06 19:21:05,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:05,443 INFO L225 Difference]: With dead ends: 130 [2021-12-06 19:21:05,443 INFO L226 Difference]: Without dead ends: 128 [2021-12-06 19:21:05,443 INFO L932 BasicCegarLoop]: 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 [2021-12-06 19:21:05,444 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 83 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:05,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 212 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-12-06 19:21:05,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 111. [2021-12-06 19:21:05,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 94 states have (on average 1.351063829787234) internal successors, (127), 103 states have internal predecessors, (127), 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) [2021-12-06 19:21:05,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2021-12-06 19:21:05,453 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 32 [2021-12-06 19:21:05,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:05,453 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2021-12-06 19:21:05,453 INFO L471 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) [2021-12-06 19:21:05,453 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2021-12-06 19:21:05,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-06 19:21:05,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:05,454 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:21:05,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 19:21:05,454 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:05,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1273705285, now seen corresponding path program 1 times [2021-12-06 19:21:05,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:05,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644465734] [2021-12-06 19:21:05,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:05,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:05,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 19:21:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 19:21:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:21:05,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:05,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644465734] [2021-12-06 19:21:05,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644465734] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:05,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1361162091] [2021-12-06 19:21:05,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:05,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:05,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:05,512 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:05,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 19:21:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:05,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-06 19:21:05,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-06 19:21:05,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-06 19:21:05,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1361162091] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:05,766 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:05,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2021-12-06 19:21:05,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78281665] [2021-12-06 19:21:05,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:05,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-06 19:21:05,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:05,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-06 19:21:05,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:21:05,768 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 16 states have internal predecessors, (43), 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) [2021-12-06 19:21:05,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:05,997 INFO L93 Difference]: Finished difference Result 302 states and 366 transitions. [2021-12-06 19:21:05,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-06 19:21:05,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 16 states have internal predecessors, (43), 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 36 [2021-12-06 19:21:05,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:05,999 INFO L225 Difference]: With dead ends: 302 [2021-12-06 19:21:05,999 INFO L226 Difference]: Without dead ends: 158 [2021-12-06 19:21:06,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2021-12-06 19:21:06,001 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 70 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:06,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 785 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:21:06,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-12-06 19:21:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 108. [2021-12-06 19:21:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.3) internal successors, (117), 99 states have internal predecessors, (117), 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) [2021-12-06 19:21:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2021-12-06 19:21:06,012 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 36 [2021-12-06 19:21:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:06,013 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2021-12-06 19:21:06,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 16 states have internal predecessors, (43), 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) [2021-12-06 19:21:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2021-12-06 19:21:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 19:21:06,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:06,014 INFO L514 BasicCegarLoop]: 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] [2021-12-06 19:21:06,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 19:21:06,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 19:21:06,215 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:06,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:06,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1255657985, now seen corresponding path program 1 times [2021-12-06 19:21:06,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:06,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399500879] [2021-12-06 19:21:06,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:06,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:06,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 19:21:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-06 19:21:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:06,301 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:21:06,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:06,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399500879] [2021-12-06 19:21:06,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399500879] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:06,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368874613] [2021-12-06 19:21:06,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:06,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:06,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:06,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:06,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 19:21:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:06,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-06 19:21:06,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:06,427 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-12-06 19:21:06,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:06,550 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:06,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368874613] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:06,550 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:06,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2021-12-06 19:21:06,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710354958] [2021-12-06 19:21:06,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:06,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:21:06,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:06,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:21:06,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:21:06,552 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 12 states have internal predecessors, (60), 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) [2021-12-06 19:21:06,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:06,824 INFO L93 Difference]: Finished difference Result 257 states and 295 transitions. [2021-12-06 19:21:06,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 19:21:06,825 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 12 states have internal predecessors, (60), 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 49 [2021-12-06 19:21:06,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:06,826 INFO L225 Difference]: With dead ends: 257 [2021-12-06 19:21:06,826 INFO L226 Difference]: Without dead ends: 173 [2021-12-06 19:21:06,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:21:06,827 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 181 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:06,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 447 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:21:06,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-12-06 19:21:06,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 108. [2021-12-06 19:21:06,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.2666666666666666) internal successors, (114), 99 states have internal predecessors, (114), 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) [2021-12-06 19:21:06,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2021-12-06 19:21:06,834 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 49 [2021-12-06 19:21:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:06,835 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2021-12-06 19:21:06,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 12 states have internal predecessors, (60), 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) [2021-12-06 19:21:06,835 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2021-12-06 19:21:06,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-06 19:21:06,835 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:06,835 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-06 19:21:06,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-06 19:21:07,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-06 19:21:07,037 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:07,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:07,038 INFO L85 PathProgramCache]: Analyzing trace with hash -373684430, now seen corresponding path program 1 times [2021-12-06 19:21:07,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:07,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847465196] [2021-12-06 19:21:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:07,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:07,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 19:21:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 19:21:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,215 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:21:07,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:07,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847465196] [2021-12-06 19:21:07,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847465196] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:07,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440612404] [2021-12-06 19:21:07,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:07,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:07,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:07,217 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:07,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 19:21:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 19:21:07,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-06 19:21:07,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:21:07,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440612404] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:07,463 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:07,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2021-12-06 19:21:07,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660288619] [2021-12-06 19:21:07,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:07,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-06 19:21:07,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:07,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-06 19:21:07,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-12-06 19:21:07,465 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2021-12-06 19:21:07,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:07,605 INFO L93 Difference]: Finished difference Result 401 states and 455 transitions. [2021-12-06 19:21:07,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-06 19:21:07,606 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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 55 [2021-12-06 19:21:07,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:07,607 INFO L225 Difference]: With dead ends: 401 [2021-12-06 19:21:07,607 INFO L226 Difference]: Without dead ends: 318 [2021-12-06 19:21:07,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=210, Unknown=0, NotChecked=0, Total=342 [2021-12-06 19:21:07,608 INFO L933 BasicCegarLoop]: 68 mSDtfsCounter, 168 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:07,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 383 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:21:07,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-12-06 19:21:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 128. [2021-12-06 19:21:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 110 states have (on average 1.2545454545454546) internal successors, (138), 119 states have internal predecessors, (138), 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) [2021-12-06 19:21:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 146 transitions. [2021-12-06 19:21:07,618 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 146 transitions. Word has length 55 [2021-12-06 19:21:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:07,618 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 146 transitions. [2021-12-06 19:21:07,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 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) [2021-12-06 19:21:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 146 transitions. [2021-12-06 19:21:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-06 19:21:07,619 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:07,619 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-12-06 19:21:07,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 19:21:07,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:07,820 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:07,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:07,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1080206945, now seen corresponding path program 1 times [2021-12-06 19:21:07,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:07,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529019130] [2021-12-06 19:21:07,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:07,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:21:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 19:21:07,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,894 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:21:07,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:07,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529019130] [2021-12-06 19:21:07,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529019130] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:07,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321034723] [2021-12-06 19:21:07,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:07,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:07,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:07,895 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:07,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 19:21:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:07,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-06 19:21:07,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:08,033 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-12-06 19:21:08,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:08,147 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-06 19:21:08,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321034723] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:08,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-12-06 19:21:08,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6, 9] total 18 [2021-12-06 19:21:08,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41916968] [2021-12-06 19:21:08,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:08,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 19:21:08,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:08,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:21:08,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:21:08,149 INFO L87 Difference]: Start difference. First operand 128 states and 146 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-12-06 19:21:08,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:08,198 INFO L93 Difference]: Finished difference Result 170 states and 190 transitions. [2021-12-06 19:21:08,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:21:08,199 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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 56 [2021-12-06 19:21:08,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:08,200 INFO L225 Difference]: With dead ends: 170 [2021-12-06 19:21:08,200 INFO L226 Difference]: Without dead ends: 131 [2021-12-06 19:21:08,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:21:08,201 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 6 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:08,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 415 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:08,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-12-06 19:21:08,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2021-12-06 19:21:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 110 states have (on average 1.2363636363636363) internal successors, (136), 119 states have internal predecessors, (136), 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) [2021-12-06 19:21:08,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 144 transitions. [2021-12-06 19:21:08,208 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 144 transitions. Word has length 56 [2021-12-06 19:21:08,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:08,208 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 144 transitions. [2021-12-06 19:21:08,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 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) [2021-12-06 19:21:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 144 transitions. [2021-12-06 19:21:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-06 19:21:08,209 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:08,209 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:08,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-06 19:21:08,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:08,410 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:08,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:08,411 INFO L85 PathProgramCache]: Analyzing trace with hash -826377518, now seen corresponding path program 2 times [2021-12-06 19:21:08,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:08,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703593687] [2021-12-06 19:21:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:08,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:08,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:08,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:08,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:21:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 19:21:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:08,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:08,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703593687] [2021-12-06 19:21:08,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703593687] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:08,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51972684] [2021-12-06 19:21:08,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:21:08,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:08,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:08,595 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:08,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 19:21:08,627 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:21:08,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:21:08,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 19:21:08,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:08,704 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-06 19:21:08,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:21:08,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51972684] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:08,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:21:08,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2021-12-06 19:21:08,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579178991] [2021-12-06 19:21:08,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:08,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 19:21:08,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:08,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 19:21:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-12-06 19:21:08,706 INFO L87 Difference]: Start difference. First operand 128 states and 144 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-12-06 19:21:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:08,764 INFO L93 Difference]: Finished difference Result 198 states and 216 transitions. [2021-12-06 19:21:08,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 19:21:08,764 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 60 [2021-12-06 19:21:08,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:08,765 INFO L225 Difference]: With dead ends: 198 [2021-12-06 19:21:08,765 INFO L226 Difference]: Without dead ends: 196 [2021-12-06 19:21:08,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-12-06 19:21:08,766 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 116 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:08,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 564 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:08,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-12-06 19:21:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 145. [2021-12-06 19:21:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 126 states have (on average 1.2301587301587302) internal successors, (155), 135 states have internal predecessors, (155), 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) [2021-12-06 19:21:08,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 164 transitions. [2021-12-06 19:21:08,775 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 164 transitions. Word has length 60 [2021-12-06 19:21:08,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:08,776 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 164 transitions. [2021-12-06 19:21:08,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2021-12-06 19:21:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 164 transitions. [2021-12-06 19:21:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-06 19:21:08,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:08,777 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:08,809 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-06 19:21:08,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-06 19:21:08,977 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:08,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:08,978 INFO L85 PathProgramCache]: Analyzing trace with hash -826317936, now seen corresponding path program 1 times [2021-12-06 19:21:08,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:08,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182534186] [2021-12-06 19:21:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:08,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:09,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:09,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2021-12-06 19:21:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 19:21:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:09,046 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:09,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:09,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182534186] [2021-12-06 19:21:09,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182534186] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:09,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030074128] [2021-12-06 19:21:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:09,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:09,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:09,047 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:09,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 19:21:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:09,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 19:21:09,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:09,153 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:21:09,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:09,288 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:09,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030074128] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:09,288 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:09,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2021-12-06 19:21:09,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924114947] [2021-12-06 19:21:09,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:09,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:21:09,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:09,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:21:09,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:21:09,290 INFO L87 Difference]: Start difference. First operand 145 states and 164 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 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) [2021-12-06 19:21:10,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:10,995 INFO L93 Difference]: Finished difference Result 348 states and 394 transitions. [2021-12-06 19:21:10,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:21:10,995 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 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 60 [2021-12-06 19:21:10,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:10,997 INFO L225 Difference]: With dead ends: 348 [2021-12-06 19:21:10,997 INFO L226 Difference]: Without dead ends: 242 [2021-12-06 19:21:10,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:21:10,999 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 117 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:10,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 353 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:21:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-12-06 19:21:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 145. [2021-12-06 19:21:11,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 126 states have (on average 1.1984126984126984) internal successors, (151), 135 states have internal predecessors, (151), 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) [2021-12-06 19:21:11,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 160 transitions. [2021-12-06 19:21:11,011 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 160 transitions. Word has length 60 [2021-12-06 19:21:11,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:11,012 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 160 transitions. [2021-12-06 19:21:11,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 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) [2021-12-06 19:21:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 160 transitions. [2021-12-06 19:21:11,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-06 19:21:11,013 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:11,013 INFO L514 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:21:11,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-06 19:21:11,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-06 19:21:11,214 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:11,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:11,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1838033761, now seen corresponding path program 1 times [2021-12-06 19:21:11,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:11,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891907247] [2021-12-06 19:21:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:11,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:11,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:11,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-06 19:21:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-06 19:21:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:11,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:11,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891907247] [2021-12-06 19:21:11,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891907247] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:11,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123500323] [2021-12-06 19:21:11,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:11,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:11,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:11,305 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:11,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 19:21:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:11,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 19:21:11,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:21:11,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:11,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123500323] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:11,666 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:11,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2021-12-06 19:21:11,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871143855] [2021-12-06 19:21:11,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:11,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-06 19:21:11,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:11,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-06 19:21:11,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2021-12-06 19:21:11,668 INFO L87 Difference]: Start difference. First operand 145 states and 160 transitions. Second operand has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 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) [2021-12-06 19:21:11,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:11,869 INFO L93 Difference]: Finished difference Result 663 states and 737 transitions. [2021-12-06 19:21:11,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-06 19:21:11,869 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 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 79 [2021-12-06 19:21:11,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:11,872 INFO L225 Difference]: With dead ends: 663 [2021-12-06 19:21:11,873 INFO L226 Difference]: Without dead ends: 563 [2021-12-06 19:21:11,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=297, Invalid=515, Unknown=0, NotChecked=0, Total=812 [2021-12-06 19:21:11,874 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 313 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:11,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [313 Valid, 665 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:21:11,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2021-12-06 19:21:11,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 185. [2021-12-06 19:21:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 166 states have (on average 1.1987951807228916) internal successors, (199), 175 states have internal predecessors, (199), 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) [2021-12-06 19:21:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 208 transitions. [2021-12-06 19:21:11,893 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 208 transitions. Word has length 79 [2021-12-06 19:21:11,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:11,893 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 208 transitions. [2021-12-06 19:21:11,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.461538461538462) internal successors, (142), 26 states have internal predecessors, (142), 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) [2021-12-06 19:21:11,894 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 208 transitions. [2021-12-06 19:21:11,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-06 19:21:11,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:11,895 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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] [2021-12-06 19:21:11,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 19:21:12,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-12-06 19:21:12,096 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:12,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1054874640, now seen corresponding path program 2 times [2021-12-06 19:21:12,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:12,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633256375] [2021-12-06 19:21:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:12,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:12,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:12,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:21:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 19:21:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,217 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:12,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:12,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633256375] [2021-12-06 19:21:12,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633256375] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:12,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606910523] [2021-12-06 19:21:12,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:21:12,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:12,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:12,218 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:12,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 19:21:12,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:21:12,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:21:12,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-06 19:21:12,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:12,419 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2021-12-06 19:21:12,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:21:12,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606910523] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:21:12,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:21:12,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 17 [2021-12-06 19:21:12,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306526676] [2021-12-06 19:21:12,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:21:12,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:21:12,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:12,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:21:12,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2021-12-06 19:21:12,421 INFO L87 Difference]: Start difference. First operand 185 states and 208 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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) [2021-12-06 19:21:12,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:12,513 INFO L93 Difference]: Finished difference Result 236 states and 258 transitions. [2021-12-06 19:21:12,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:21:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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 80 [2021-12-06 19:21:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:12,515 INFO L225 Difference]: With dead ends: 236 [2021-12-06 19:21:12,515 INFO L226 Difference]: Without dead ends: 235 [2021-12-06 19:21:12,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2021-12-06 19:21:12,516 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 115 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:12,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 559 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 19:21:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-12-06 19:21:12,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 185. [2021-12-06 19:21:12,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 166 states have (on average 1.1927710843373494) internal successors, (198), 175 states have internal predecessors, (198), 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) [2021-12-06 19:21:12,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 207 transitions. [2021-12-06 19:21:12,530 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 207 transitions. Word has length 80 [2021-12-06 19:21:12,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:12,530 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 207 transitions. [2021-12-06 19:21:12,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 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) [2021-12-06 19:21:12,530 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 207 transitions. [2021-12-06 19:21:12,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-06 19:21:12,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:12,531 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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] [2021-12-06 19:21:12,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 19:21:12,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:12,732 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:12,733 INFO L85 PathProgramCache]: Analyzing trace with hash 64993556, now seen corresponding path program 1 times [2021-12-06 19:21:12,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:12,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824177952] [2021-12-06 19:21:12,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:12,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:12,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-06 19:21:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-06 19:21:12,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,847 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:12,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:12,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824177952] [2021-12-06 19:21:12,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824177952] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:12,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599944733] [2021-12-06 19:21:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:12,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:12,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:12,848 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:12,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 19:21:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:12,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 19:21:12,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 26 proven. 75 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:21:13,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:13,425 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 4 proven. 85 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:13,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599944733] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:13,426 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:13,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2021-12-06 19:21:13,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808080889] [2021-12-06 19:21:13,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:13,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-06 19:21:13,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:13,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-06 19:21:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2021-12-06 19:21:13,428 INFO L87 Difference]: Start difference. First operand 185 states and 207 transitions. Second operand has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 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) [2021-12-06 19:21:32,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:32,011 INFO L93 Difference]: Finished difference Result 476 states and 540 transitions. [2021-12-06 19:21:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-06 19:21:32,012 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 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 82 [2021-12-06 19:21:32,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:32,013 INFO L225 Difference]: With dead ends: 476 [2021-12-06 19:21:32,014 INFO L226 Difference]: Without dead ends: 370 [2021-12-06 19:21:32,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=499, Invalid=902, Unknown=5, NotChecked=0, Total=1406 [2021-12-06 19:21:32,015 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 218 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:32,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 796 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:21:32,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-12-06 19:21:32,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 185. [2021-12-06 19:21:32,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 166 states have (on average 1.144578313253012) internal successors, (190), 175 states have internal predecessors, (190), 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) [2021-12-06 19:21:32,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 199 transitions. [2021-12-06 19:21:32,025 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 199 transitions. Word has length 82 [2021-12-06 19:21:32,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:32,025 INFO L470 AbstractCegarLoop]: Abstraction has 185 states and 199 transitions. [2021-12-06 19:21:32,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.68) internal successors, (142), 25 states have internal predecessors, (142), 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) [2021-12-06 19:21:32,025 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 199 transitions. [2021-12-06 19:21:32,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-06 19:21:32,026 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:32,026 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 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] [2021-12-06 19:21:32,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 19:21:32,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:32,228 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:32,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:32,229 INFO L85 PathProgramCache]: Analyzing trace with hash 684697381, now seen corresponding path program 1 times [2021-12-06 19:21:32,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:32,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53912506] [2021-12-06 19:21:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:32,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:32,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:32,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-06 19:21:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 19:21:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:32,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:32,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53912506] [2021-12-06 19:21:32,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53912506] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:32,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141495672] [2021-12-06 19:21:32,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:32,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:32,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:32,415 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:32,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 19:21:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:32,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-06 19:21:32,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:21:32,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:33,149 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:33,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141495672] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:33,149 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:33,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2021-12-06 19:21:33,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758311455] [2021-12-06 19:21:33,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:33,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-12-06 19:21:33,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:33,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-12-06 19:21:33,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2021-12-06 19:21:33,152 INFO L87 Difference]: Start difference. First operand 185 states and 199 transitions. Second operand has 50 states, 50 states have (on average 5.28) internal successors, (264), 50 states have internal predecessors, (264), 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) [2021-12-06 19:21:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:33,532 INFO L93 Difference]: Finished difference Result 1143 states and 1263 transitions. [2021-12-06 19:21:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-12-06 19:21:33,532 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.28) internal successors, (264), 50 states have internal predecessors, (264), 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 121 [2021-12-06 19:21:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:33,536 INFO L225 Difference]: With dead ends: 1143 [2021-12-06 19:21:33,536 INFO L226 Difference]: Without dead ends: 1043 [2021-12-06 19:21:33,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=977, Invalid=1779, Unknown=0, NotChecked=0, Total=2756 [2021-12-06 19:21:33,538 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 1096 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:33,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1096 Valid, 622 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 19:21:33,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2021-12-06 19:21:33,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 265. [2021-12-06 19:21:33,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 246 states have (on average 1.1626016260162602) internal successors, (286), 255 states have internal predecessors, (286), 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) [2021-12-06 19:21:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 295 transitions. [2021-12-06 19:21:33,560 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 295 transitions. Word has length 121 [2021-12-06 19:21:33,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:33,560 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 295 transitions. [2021-12-06 19:21:33,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.28) internal successors, (264), 50 states have internal predecessors, (264), 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) [2021-12-06 19:21:33,560 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 295 transitions. [2021-12-06 19:21:33,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-06 19:21:33,561 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:33,561 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 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] [2021-12-06 19:21:33,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-06 19:21:33,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:33,762 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:33,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:33,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1264921108, now seen corresponding path program 2 times [2021-12-06 19:21:33,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:33,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057587462] [2021-12-06 19:21:33,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:33,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:33,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:34,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-06 19:21:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:34,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-06 19:21:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:34,049 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 4 proven. 465 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:34,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:34,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057587462] [2021-12-06 19:21:34,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057587462] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:34,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151733597] [2021-12-06 19:21:34,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:21:34,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:34,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:34,051 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:34,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-06 19:21:34,133 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:21:34,133 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:21:34,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-06 19:21:34,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:34,268 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2021-12-06 19:21:34,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2021-12-06 19:21:34,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151733597] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:34,435 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:34,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 28 [2021-12-06 19:21:34,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747884675] [2021-12-06 19:21:34,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:34,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-06 19:21:34,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:34,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-06 19:21:34,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-12-06 19:21:34,437 INFO L87 Difference]: Start difference. First operand 265 states and 295 transitions. Second operand has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 26 states have internal predecessors, (134), 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) [2021-12-06 19:21:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:21:34,865 INFO L93 Difference]: Finished difference Result 593 states and 676 transitions. [2021-12-06 19:21:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-06 19:21:34,866 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 26 states have internal predecessors, (134), 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 122 [2021-12-06 19:21:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:21:34,868 INFO L225 Difference]: With dead ends: 593 [2021-12-06 19:21:34,868 INFO L226 Difference]: Without dead ends: 493 [2021-12-06 19:21:34,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=923, Unknown=0, NotChecked=0, Total=1122 [2021-12-06 19:21:34,869 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 440 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 19:21:34,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [440 Valid, 1508 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 19:21:34,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-12-06 19:21:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 282. [2021-12-06 19:21:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 261 states have (on average 1.157088122605364) internal successors, (302), 269 states have internal predecessors, (302), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 19:21:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 315 transitions. [2021-12-06 19:21:34,885 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 315 transitions. Word has length 122 [2021-12-06 19:21:34,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:21:34,885 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 315 transitions. [2021-12-06 19:21:34,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.785714285714286) internal successors, (134), 26 states have internal predecessors, (134), 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) [2021-12-06 19:21:34,885 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 315 transitions. [2021-12-06 19:21:34,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-06 19:21:34,886 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:21:34,886 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 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] [2021-12-06 19:21:34,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-12-06 19:21:35,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:35,088 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:21:35,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:21:35,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1327307402, now seen corresponding path program 1 times [2021-12-06 19:21:35,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:21:35,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100605298] [2021-12-06 19:21:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:35,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:21:35,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:21:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:21:35,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:35,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-06 19:21:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:35,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-06 19:21:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 4 proven. 535 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:35,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:21:35,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100605298] [2021-12-06 19:21:35,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100605298] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:21:35,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346560956] [2021-12-06 19:21:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:21:35,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:21:35,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:21:35,391 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:21:35,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-06 19:21:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:21:35,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjunts are in the unsatisfiable core [2021-12-06 19:21:35,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:21:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 26 proven. 525 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-06 19:21:35,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:21:36,787 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 4 proven. 535 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-06 19:21:36,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346560956] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:21:36,787 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:21:36,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 52 [2021-12-06 19:21:36,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33488770] [2021-12-06 19:21:36,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:21:36,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-12-06 19:21:36,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:21:36,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-12-06 19:21:36,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=1986, Unknown=0, NotChecked=0, Total=2652 [2021-12-06 19:21:36,789 INFO L87 Difference]: Start difference. First operand 282 states and 315 transitions. Second operand has 52 states, 52 states have (on average 5.346153846153846) internal successors, (278), 52 states have internal predecessors, (278), 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) [2021-12-06 19:21:47,770 WARN L227 SmtUtils]: Spent 8.10s on a formula simplification. DAG size of input: 46 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:21:59,271 WARN L227 SmtUtils]: Spent 7.49s on a formula simplification. DAG size of input: 41 DAG size of output: 16 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-12-06 19:22:23,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:22:23,587 INFO L93 Difference]: Finished difference Result 708 states and 810 transitions. [2021-12-06 19:22:23,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-12-06 19:22:23,589 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 5.346153846153846) internal successors, (278), 52 states have internal predecessors, (278), 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 128 [2021-12-06 19:22:23,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:22:23,590 INFO L225 Difference]: With dead ends: 708 [2021-12-06 19:22:23,591 INFO L226 Difference]: Without dead ends: 585 [2021-12-06 19:22:23,592 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 47.0s TimeCoverageRelationStatistics Valid=1640, Invalid=3901, Unknown=9, NotChecked=0, Total=5550 [2021-12-06 19:22:23,593 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 492 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 1735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-06 19:22:23,593 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [492 Valid, 2033 Invalid, 1735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-06 19:22:23,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2021-12-06 19:22:23,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 282. [2021-12-06 19:22:23,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 261 states have (on average 1.1226053639846743) internal successors, (293), 269 states have internal predecessors, (293), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 19:22:23,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 306 transitions. [2021-12-06 19:22:23,609 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 306 transitions. Word has length 128 [2021-12-06 19:22:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:22:23,610 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 306 transitions. [2021-12-06 19:22:23,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 5.346153846153846) internal successors, (278), 52 states have internal predecessors, (278), 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) [2021-12-06 19:22:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 306 transitions. [2021-12-06 19:22:23,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-12-06 19:22:23,611 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:22:23,611 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:22:23,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-06 19:22:23,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:22:23,811 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:22:23,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:22:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash -110661052, now seen corresponding path program 2 times [2021-12-06 19:22:23,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:22:23,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236361280] [2021-12-06 19:22:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:22:23,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:22:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:23,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:22:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:23,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:22:23,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:22:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:24,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 19:22:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:24,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-12-06 19:22:24,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:22:24,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236361280] [2021-12-06 19:22:24,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236361280] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:22:24,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823039453] [2021-12-06 19:22:24,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:22:24,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:22:24,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:22:24,010 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:22:24,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-06 19:22:24,051 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-06 19:22:24,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:22:24,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 19:22:24,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:22:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2021-12-06 19:22:24,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 19:22:24,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823039453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:22:24,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 19:22:24,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2021-12-06 19:22:24,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141488278] [2021-12-06 19:22:24,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:22:24,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 19:22:24,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:22:24,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 19:22:24,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2021-12-06 19:22:24,421 INFO L87 Difference]: Start difference. First operand 282 states and 306 transitions. Second operand has 9 states, 8 states have (on average 4.875) 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) [2021-12-06 19:22:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:22:24,583 INFO L93 Difference]: Finished difference Result 335 states and 359 transitions. [2021-12-06 19:22:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 19:22:24,583 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) 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 173 [2021-12-06 19:22:24,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:22:24,585 INFO L225 Difference]: With dead ends: 335 [2021-12-06 19:22:24,585 INFO L226 Difference]: Without dead ends: 332 [2021-12-06 19:22:24,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2021-12-06 19:22:24,585 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 80 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:22:24,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 502 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:22:24,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-12-06 19:22:24,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 293. [2021-12-06 19:22:24,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 272 states have (on average 1.1323529411764706) internal successors, (308), 280 states have internal predecessors, (308), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 19:22:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 321 transitions. [2021-12-06 19:22:24,602 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 321 transitions. Word has length 173 [2021-12-06 19:22:24,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:22:24,603 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 321 transitions. [2021-12-06 19:22:24,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) 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) [2021-12-06 19:22:24,603 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 321 transitions. [2021-12-06 19:22:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 19:22:24,604 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:22:24,604 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:22:24,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-12-06 19:22:24,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-06 19:22:24,806 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:22:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:22:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 864474836, now seen corresponding path program 1 times [2021-12-06 19:22:24,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:22:24,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090035212] [2021-12-06 19:22:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:22:24,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:22:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:25,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 19:22:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-06 19:22:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:25,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-06 19:22:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-06 19:22:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:22:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2021-12-06 19:22:25,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:22:25,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090035212] [2021-12-06 19:22:25,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090035212] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:22:25,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:22:25,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 19:22:25,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066474360] [2021-12-06 19:22:25,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:22:25,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-06 19:22:25,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:22:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-06 19:22:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-06 19:22:25,223 INFO L87 Difference]: Start difference. First operand 293 states and 321 transitions. Second operand has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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) [2021-12-06 19:22:25,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:22:25,431 INFO L93 Difference]: Finished difference Result 348 states and 376 transitions. [2021-12-06 19:22:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 19:22:25,431 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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 174 [2021-12-06 19:22:25,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 19:22:25,433 INFO L225 Difference]: With dead ends: 348 [2021-12-06 19:22:25,433 INFO L226 Difference]: Without dead ends: 342 [2021-12-06 19:22:25,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-12-06 19:22:25,433 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 145 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 19:22:25,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 490 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 19:22:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-12-06 19:22:25,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 311. [2021-12-06 19:22:25,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 290 states have (on average 1.1310344827586207) internal successors, (328), 298 states have internal predecessors, (328), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-06 19:22:25,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 341 transitions. [2021-12-06 19:22:25,450 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 341 transitions. Word has length 174 [2021-12-06 19:22:25,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 19:22:25,450 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 341 transitions. [2021-12-06 19:22:25,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 11 states have internal predecessors, (39), 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) [2021-12-06 19:22:25,450 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 341 transitions. [2021-12-06 19:22:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-12-06 19:22:25,451 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 19:22:25,451 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:22:25,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-06 19:22:25,452 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2021-12-06 19:22:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:22:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1614496444, now seen corresponding path program 1 times [2021-12-06 19:22:25,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:22:25,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264900823] [2021-12-06 19:22:25,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:22:25,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:22:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:22:25,478 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:22:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:22:25,532 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:22:25,532 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 19:22:25,533 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2021-12-06 19:22:25,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2021-12-06 19:22:25,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2021-12-06 19:22:25,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2021-12-06 19:22:25,535 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2021-12-06 19:22:25,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2021-12-06 19:22:25,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2021-12-06 19:22:25,536 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2021-12-06 19:22:25,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-12-06 19:22:25,538 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 19:22:25,541 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 19:22:25,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 07:22:25 BoogieIcfgContainer [2021-12-06 19:22:25,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 19:22:25,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:22:25,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:22:25,599 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:22:25,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:21:03" (3/4) ... [2021-12-06 19:22:25,601 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 19:22:25,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:22:25,602 INFO L158 Benchmark]: Toolchain (without parser) took 82487.64ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.6MB in the beginning and 105.1MB in the end (delta: -37.5MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,602 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory was 84.2MB in the beginning and 84.1MB in the end (delta: 95.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:22:25,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.63ms. Allocated memory is still 104.9MB. Free memory was 67.4MB in the beginning and 55.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.41ms. Allocated memory is still 104.9MB. Free memory was 54.9MB in the beginning and 84.0MB in the end (delta: -29.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,602 INFO L158 Benchmark]: Boogie Preprocessor took 26.79ms. Allocated memory is still 104.9MB. Free memory was 84.0MB in the beginning and 82.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,602 INFO L158 Benchmark]: RCFGBuilder took 326.76ms. Allocated memory is still 104.9MB. Free memory was 82.6MB in the beginning and 68.0MB in the end (delta: 14.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,603 INFO L158 Benchmark]: TraceAbstraction took 81857.51ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.4MB in the beginning and 106.2MB in the end (delta: -38.8MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,603 INFO L158 Benchmark]: Witness Printer took 2.90ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 105.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:22:25,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 104.9MB. Free memory was 84.2MB in the beginning and 84.1MB in the end (delta: 95.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.63ms. Allocated memory is still 104.9MB. Free memory was 67.4MB in the beginning and 55.0MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.41ms. Allocated memory is still 104.9MB. Free memory was 54.9MB in the beginning and 84.0MB in the end (delta: -29.1MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.79ms. Allocated memory is still 104.9MB. Free memory was 84.0MB in the beginning and 82.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.76ms. Allocated memory is still 104.9MB. Free memory was 82.6MB in the beginning and 68.0MB in the end (delta: 14.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 81857.51ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 67.4MB in the beginning and 106.2MB in the end (delta: -38.8MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Witness Printer took 2.90ms. Allocated memory is still 151.0MB. Free memory was 106.2MB in the beginning and 105.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 173, overapproximation of bitwiseAnd at line 174. 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 sa ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=127, eb=0] [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=0] [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] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=2, e=-24, res=2] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=36028797018963970, __retres4=2, e=-24, res=2] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=36028797018963970, ea=127, eb=0, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L29] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L57] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L59] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L64] COND TRUE e >= 127 [L65] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L80] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, __retres4=4294967295, e=127, m=33554432] [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, one=2, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0] [L77] EXPR e + 128 [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=1, e=0, res=1] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=36028797018963969, __retres4=1, e=0, res=1] [L241] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=36028797018963969, ea=127, eb=0, ma=33554432, mb=16777216, one=2, zero=0] [L241] b = base2flt(mb, eb) [L243] COND FALSE !(a < zero) VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, one=2, zero=0] [L246] COND TRUE a > zero [L247] tmp = 1 VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, one=2, tmp=1, zero=0] [L251] sa = tmp VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, one=2, sa=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)=4294967295, \old(b)=1, a=4294967295, b=1] [L158] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L165] COND FALSE !(! b) [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L172] EXPR (int )(a >> 24U) - 128 [L172] ea = (int )(a >> 24U) - 128 [L173] ma = ma | (1U << 24U) [L174] mb = b & ((1U << 24U) - 1U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] [L175] (int )(b >> 24U) - 128 VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127] - 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: 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: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 87 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 81.7s, OverallIterations: 26, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 70.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4173 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4161 mSDsluCounter, 12404 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10516 mSDsCounter, 727 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5232 IncrementalHoareTripleChecker+Invalid, 5959 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 727 mSolverCounterUnsat, 1888 mSDtfsCounter, 5232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2309 GetRequests, 1885 SyntacticMatches, 1 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3409 ImplicationChecksByTransitivity, 69.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=311occurred in iteration=25, InterpolantAutomatonStates: 314, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 25 MinimizatonAttempts, 2590 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2769 NumberOfCodeBlocks, 2522 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 3334 ConstructedInterpolants, 0 QuantifiedInterpolants, 11855 SizeOfPredicates, 40 NumberOfNonLiveVariables, 2272 ConjunctsInSsa, 211 ConjunctsInUnsatCore, 49 InterpolantComputations, 16 PerfectInterpolantSequences, 6246/10574 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 [2021-12-06 19:22:25,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 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_c1240be3-318b-4f46-a1a1-135de7d842d0/bin/uautomizer-DrprNOufMa/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