./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc --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 aa6f3ffe66f40e883b6b9462d3d92566e122af5c88e351ce665cbb8a404d0554 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:10:46,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:10:46,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:10:46,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:10:46,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:10:46,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:10:46,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:10:46,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:10:46,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:10:46,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:10:46,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:10:46,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:10:46,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:10:46,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:10:46,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:10:46,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:10:46,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:10:46,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:10:46,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:10:46,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:10:46,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:10:46,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:10:46,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:10:46,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:10:46,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:10:46,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:10:46,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:10:46,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:10:46,485 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:10:46,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:10:46,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:10:46,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:10:46,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:10:46,490 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:10:46,491 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:10:46,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:10:46,492 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:10:46,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:10:46,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:10:46,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:10:46,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:10:46,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-02 21:10:46,531 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:10:46,531 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:10:46,532 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:10:46,532 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:10:46,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:10:46,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:10:46,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:10:46,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:10:46,534 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:10:46,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:10:46,535 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-02 21:10:46,536 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-02 21:10:46,536 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:10:46,536 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-02 21:10:46,536 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:10:46,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:10:46,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:10:46,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:10:46,537 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-02 21:10:46,537 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-02 21:10:46,538 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:10:46,538 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:10:46,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:10:46,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:10:46,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:10:46,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:10:46,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:46,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:10:46,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:10:46,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:10:46,540 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:10:46,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:10:46,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:10:46,541 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_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa6f3ffe66f40e883b6b9462d3d92566e122af5c88e351ce665cbb8a404d0554 [2022-11-02 21:10:46,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:10:46,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:10:46,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:10:46,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:10:46,919 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:10:46,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/bitvector/soft_float_3.c.cil.c [2022-11-02 21:10:47,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/data/633f2a492/3c59dbcffaf94c748079f0545accc815/FLAG284bf910e [2022-11-02 21:10:47,441 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:10:47,441 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c [2022-11-02 21:10:47,449 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/data/633f2a492/3c59dbcffaf94c748079f0545accc815/FLAG284bf910e [2022-11-02 21:10:47,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/data/633f2a492/3c59dbcffaf94c748079f0545accc815 [2022-11-02 21:10:47,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:10:47,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:10:47,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:47,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:10:47,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:10:47,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:47" (1/1) ... [2022-11-02 21:10:47,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58646920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:47, skipping insertion in model container [2022-11-02 21:10:47,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:10:47" (1/1) ... [2022-11-02 21:10:47,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:10:47,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:10:48,069 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_84ef1160-2170-4976-9580-7cfa93e2fb5a/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c[727,740] [2022-11-02 21:10:48,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:48,122 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:10:48,134 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_84ef1160-2170-4976-9580-7cfa93e2fb5a/sv-benchmarks/c/bitvector/soft_float_3.c.cil.c[727,740] [2022-11-02 21:10:48,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:10:48,184 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:10:48,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48 WrapperNode [2022-11-02 21:10:48,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:10:48,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:48,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:10:48,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:10:48,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,225 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 126 [2022-11-02 21:10:48,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:10:48,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:10:48,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:10:48,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:10:48,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,280 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:10:48,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:10:48,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:10:48,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:10:48,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (1/1) ... [2022-11-02 21:10:48,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:10:48,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:48,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:10:48,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:10:48,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:10:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:10:48,380 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-02 21:10:48,380 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-02 21:10:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:10:48,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:10:48,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-02 21:10:48,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-02 21:10:48,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:10:48,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:10:48,900 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:10:48,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:10:48,907 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 21:10:48,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:48 BoogieIcfgContainer [2022-11-02 21:10:48,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:10:48,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:10:48,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:10:48,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:10:48,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:10:47" (1/3) ... [2022-11-02 21:10:48,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6ea8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:48, skipping insertion in model container [2022-11-02 21:10:48,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:10:48" (2/3) ... [2022-11-02 21:10:48,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6ea8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:10:48, skipping insertion in model container [2022-11-02 21:10:48,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:10:48" (3/3) ... [2022-11-02 21:10:48,932 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3.c.cil.c [2022-11-02 21:10:48,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:10:48,953 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-11-02 21:10:49,003 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:10:49,009 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@63a1d8b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:10:49,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-11-02 21:10:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 64 states have (on average 1.703125) internal successors, (109), 87 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-02 21:10:49,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:10:49,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:49,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:49,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:49,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:49,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1512670861, now seen corresponding path program 1 times [2022-11-02 21:10:49,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:49,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791288767] [2022-11-02 21:10:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:49,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:49,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:49,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791288767] [2022-11-02 21:10:49,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791288767] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:49,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:49,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:10:49,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071595810] [2022-11-02 21:10:49,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:49,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-02 21:10:49,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:49,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-02 21:10:49,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:10:49,266 INFO L87 Difference]: Start difference. First operand has 94 states, 64 states have (on average 1.703125) internal successors, (109), 87 states have internal predecessors, (109), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:49,297 INFO L93 Difference]: Finished difference Result 183 states and 239 transitions. [2022-11-02 21:10:49,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-02 21:10:49,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:10:49,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:49,311 INFO L225 Difference]: With dead ends: 183 [2022-11-02 21:10:49,311 INFO L226 Difference]: Without dead ends: 73 [2022-11-02 21:10:49,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-02 21:10:49,320 INFO L413 NwaCegarLoop]: 112 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, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:49,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:10:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-02 21:10:49,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-02 21:10:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.5625) internal successors, (75), 67 states have internal predecessors, (75), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:49,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2022-11-02 21:10:49,362 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 9 [2022-11-02 21:10:49,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:49,363 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2022-11-02 21:10:49,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,363 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2022-11-02 21:10:49,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-02 21:10:49,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:49,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:49,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:10:49,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:49,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:49,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1511729595, now seen corresponding path program 1 times [2022-11-02 21:10:49,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:49,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118939159] [2022-11-02 21:10:49,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:49,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:49,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:49,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:49,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118939159] [2022-11-02 21:10:49,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118939159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:49,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:49,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:10:49,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508444480] [2022-11-02 21:10:49,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:49,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:10:49,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:49,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:10:49,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:10:49,489 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:49,592 INFO L93 Difference]: Finished difference Result 189 states and 225 transitions. [2022-11-02 21:10:49,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:10:49,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-02 21:10:49,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:49,596 INFO L225 Difference]: With dead ends: 189 [2022-11-02 21:10:49,596 INFO L226 Difference]: Without dead ends: 119 [2022-11-02 21:10:49,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:49,598 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 62 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:49,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 207 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:49,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-02 21:10:49,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 107. [2022-11-02 21:10:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 81 states have (on average 1.5185185185185186) internal successors, (123), 100 states have internal predecessors, (123), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:49,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 131 transitions. [2022-11-02 21:10:49,631 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 131 transitions. Word has length 9 [2022-11-02 21:10:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:49,632 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 131 transitions. [2022-11-02 21:10:49,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,636 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 131 transitions. [2022-11-02 21:10:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-02 21:10:49,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:49,638 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:49,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:10:49,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:49,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:49,641 INFO L85 PathProgramCache]: Analyzing trace with hash 652535198, now seen corresponding path program 1 times [2022-11-02 21:10:49,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:49,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297470520] [2022-11-02 21:10:49,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:49,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:49,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:49,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:49,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297470520] [2022-11-02 21:10:49,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297470520] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:49,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:49,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:10:49,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6979990] [2022-11-02 21:10:49,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:49,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:10:49,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:49,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:10:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:10:49,854 INFO L87 Difference]: Start difference. First operand 107 states and 131 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:49,907 INFO L93 Difference]: Finished difference Result 216 states and 264 transitions. [2022-11-02 21:10:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:10:49,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-02 21:10:49,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:49,909 INFO L225 Difference]: With dead ends: 216 [2022-11-02 21:10:49,909 INFO L226 Difference]: Without dead ends: 112 [2022-11-02 21:10:49,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:49,911 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 7 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:49,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 226 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:10:49,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-02 21:10:49,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-11-02 21:10:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 85 states have (on average 1.4941176470588236) internal successors, (127), 104 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) [2022-11-02 21:10:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2022-11-02 21:10:49,924 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 12 [2022-11-02 21:10:49,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:49,924 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2022-11-02 21:10:49,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:10:49,924 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2022-11-02 21:10:49,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-02 21:10:49,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:49,925 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:49,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:10:49,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:49,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:49,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1624282580, now seen corresponding path program 1 times [2022-11-02 21:10:49,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:49,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011256622] [2022-11-02 21:10:49,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:49,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:50,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011256622] [2022-11-02 21:10:50,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011256622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:10:50,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654033912] [2022-11-02 21:10:50,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:10:50,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:10:50,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:10:50,135 INFO L87 Difference]: Start difference. First operand 112 states and 135 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:50,190 INFO L93 Difference]: Finished difference Result 194 states and 223 transitions. [2022-11-02 21:10:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:10:50,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-02 21:10:50,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:50,192 INFO L225 Difference]: With dead ends: 194 [2022-11-02 21:10:50,192 INFO L226 Difference]: Without dead ends: 104 [2022-11-02 21:10:50,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:50,194 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 30 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:50,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 229 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:10:50,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-02 21:10:50,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2022-11-02 21:10:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 90 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:50,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 114 transitions. [2022-11-02 21:10:50,206 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 114 transitions. Word has length 19 [2022-11-02 21:10:50,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:50,207 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 114 transitions. [2022-11-02 21:10:50,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 114 transitions. [2022-11-02 21:10:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-02 21:10:50,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:50,208 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:50,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:10:50,209 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:50,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1312112780, now seen corresponding path program 1 times [2022-11-02 21:10:50,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999543331] [2022-11-02 21:10:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:50,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999543331] [2022-11-02 21:10:50,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999543331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:10:50,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120566315] [2022-11-02 21:10:50,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:50,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:50,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:50,328 INFO L87 Difference]: Start difference. First operand 98 states and 114 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:50,444 INFO L93 Difference]: Finished difference Result 107 states and 118 transitions. [2022-11-02 21:10:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:50,445 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-02 21:10:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:50,449 INFO L225 Difference]: With dead ends: 107 [2022-11-02 21:10:50,449 INFO L226 Difference]: Without dead ends: 104 [2022-11-02 21:10:50,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:10:50,461 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 46 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:50,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 276 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:50,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-02 21:10:50,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 98. [2022-11-02 21:10:50,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.4507042253521127) internal successors, (103), 90 states have internal predecessors, (103), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:50,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 111 transitions. [2022-11-02 21:10:50,489 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 111 transitions. Word has length 20 [2022-11-02 21:10:50,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:50,489 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 111 transitions. [2022-11-02 21:10:50,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,491 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 111 transitions. [2022-11-02 21:10:50,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-02 21:10:50,492 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:50,492 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:50,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:10:50,498 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:50,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2020790415, now seen corresponding path program 1 times [2022-11-02 21:10:50,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846604397] [2022-11-02 21:10:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:10:50,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846604397] [2022-11-02 21:10:50,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846604397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:10:50,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033994057] [2022-11-02 21:10:50,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:50,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:50,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:50,596 INFO L87 Difference]: Start difference. First operand 98 states and 111 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:50,697 INFO L93 Difference]: Finished difference Result 188 states and 212 transitions. [2022-11-02 21:10:50,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:50,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-02 21:10:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:50,699 INFO L225 Difference]: With dead ends: 188 [2022-11-02 21:10:50,699 INFO L226 Difference]: Without dead ends: 117 [2022-11-02 21:10:50,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:10:50,709 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 57 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:50,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 279 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:50,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-02 21:10:50,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 108. [2022-11-02 21:10:50,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 81 states have (on average 1.4074074074074074) internal successors, (114), 100 states have internal predecessors, (114), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:50,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2022-11-02 21:10:50,729 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 21 [2022-11-02 21:10:50,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:50,730 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2022-11-02 21:10:50,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,731 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2022-11-02 21:10:50,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-02 21:10:50,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:50,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:50,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-02 21:10:50,732 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:50,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash -569672035, now seen corresponding path program 1 times [2022-11-02 21:10:50,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080359272] [2022-11-02 21:10:50,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 21:10:50,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:50,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080359272] [2022-11-02 21:10:50,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080359272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:50,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:50,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 21:10:50,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698980724] [2022-11-02 21:10:50,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:10:50,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:50,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:10:50,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:10:50,824 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:50,895 INFO L93 Difference]: Finished difference Result 123 states and 142 transitions. [2022-11-02 21:10:50,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:10:50,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-02 21:10:50,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:50,897 INFO L225 Difference]: With dead ends: 123 [2022-11-02 21:10:50,897 INFO L226 Difference]: Without dead ends: 120 [2022-11-02 21:10:50,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:10:50,899 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 12 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:50,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 210 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:10:50,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-02 21:10:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2022-11-02 21:10:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 79 states have (on average 1.3924050632911393) internal successors, (110), 97 states have internal predecessors, (110), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2022-11-02 21:10:50,921 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 26 [2022-11-02 21:10:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:50,922 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2022-11-02 21:10:50,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-02 21:10:50,922 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2022-11-02 21:10:50,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-02 21:10:50,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:50,923 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 21:10:50,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-02 21:10:50,923 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:50,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:50,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1709287818, now seen corresponding path program 1 times [2022-11-02 21:10:50,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:50,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549822258] [2022-11-02 21:10:50,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:50,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:50,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-02 21:10:51,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:51,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549822258] [2022-11-02 21:10:51,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549822258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:51,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:51,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:10:51,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487777284] [2022-11-02 21:10:51,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:51,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:51,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:51,048 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:10:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:51,136 INFO L93 Difference]: Finished difference Result 152 states and 176 transitions. [2022-11-02 21:10:51,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:51,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 34 [2022-11-02 21:10:51,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:51,139 INFO L225 Difference]: With dead ends: 152 [2022-11-02 21:10:51,139 INFO L226 Difference]: Without dead ends: 149 [2022-11-02 21:10:51,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:51,142 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 108 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:51,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 213 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:51,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-02 21:10:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 134. [2022-11-02 21:10:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 108 states have (on average 1.3981481481481481) internal successors, (151), 125 states have internal predecessors, (151), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2022-11-02 21:10:51,168 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 34 [2022-11-02 21:10:51,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:51,170 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2022-11-02 21:10:51,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:10:51,171 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2022-11-02 21:10:51,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-02 21:10:51,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:51,176 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:51,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-02 21:10:51,177 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:51,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:51,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1459431374, now seen corresponding path program 1 times [2022-11-02 21:10:51,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:51,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397420761] [2022-11-02 21:10:51,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:51,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,315 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-02 21:10:51,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:51,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397420761] [2022-11-02 21:10:51,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397420761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:51,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:51,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:10:51,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129266361] [2022-11-02 21:10:51,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:51,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:51,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:51,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:51,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:51,319 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:10:51,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:51,425 INFO L93 Difference]: Finished difference Result 147 states and 168 transitions. [2022-11-02 21:10:51,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:51,426 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 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 36 [2022-11-02 21:10:51,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:51,427 INFO L225 Difference]: With dead ends: 147 [2022-11-02 21:10:51,427 INFO L226 Difference]: Without dead ends: 144 [2022-11-02 21:10:51,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:51,430 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 89 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:51,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 227 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-02 21:10:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 129. [2022-11-02 21:10:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 120 states have internal predecessors, (142), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2022-11-02 21:10:51,444 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 36 [2022-11-02 21:10:51,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:51,444 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2022-11-02 21:10:51,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:10:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2022-11-02 21:10:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-02 21:10:51,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:51,452 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-02 21:10:51,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:10:51,452 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:51,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:51,453 INFO L85 PathProgramCache]: Analyzing trace with hash 2004361071, now seen corresponding path program 1 times [2022-11-02 21:10:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:51,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760895364] [2022-11-02 21:10:51,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:51,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:51,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,650 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:51,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:51,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760895364] [2022-11-02 21:10:51,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760895364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:10:51,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:10:51,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:10:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719236407] [2022-11-02 21:10:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:10:51,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:10:51,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:51,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:10:51,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:10:51,652 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:10:51,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:51,746 INFO L93 Difference]: Finished difference Result 302 states and 351 transitions. [2022-11-02 21:10:51,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:10:51,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-11-02 21:10:51,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:51,748 INFO L225 Difference]: With dead ends: 302 [2022-11-02 21:10:51,749 INFO L226 Difference]: Without dead ends: 198 [2022-11-02 21:10:51,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:10:51,750 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 58 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:51,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 244 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:10:51,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-02 21:10:51,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 129. [2022-11-02 21:10:51,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 103 states have (on average 1.3689320388349515) internal successors, (141), 120 states have internal predecessors, (141), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:51,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2022-11-02 21:10:51,762 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 37 [2022-11-02 21:10:51,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:51,762 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2022-11-02 21:10:51,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-02 21:10:51,762 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2022-11-02 21:10:51,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-02 21:10:51,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:51,763 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:51,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:10:51,764 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:51,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:51,764 INFO L85 PathProgramCache]: Analyzing trace with hash -685803612, now seen corresponding path program 1 times [2022-11-02 21:10:51,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:51,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826819612] [2022-11-02 21:10:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:51,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:51,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:51,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:51,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:51,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826819612] [2022-11-02 21:10:51,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826819612] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:51,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881259038] [2022-11-02 21:10:51,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:51,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:10:51,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:51,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:10:51,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:10:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:51,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-02 21:10:51,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:52,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:52,381 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:52,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881259038] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:10:52,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:10:52,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-11-02 21:10:52,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62282264] [2022-11-02 21:10:52,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:52,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-02 21:10:52,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:52,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-02 21:10:52,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2022-11-02 21:10:52,384 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:10:52,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:52,805 INFO L93 Difference]: Finished difference Result 506 states and 590 transitions. [2022-11-02 21:10:52,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-02 21:10:52,805 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2022-11-02 21:10:52,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:52,810 INFO L225 Difference]: With dead ends: 506 [2022-11-02 21:10:52,810 INFO L226 Difference]: Without dead ends: 404 [2022-11-02 21:10:52,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=218, Invalid=334, Unknown=0, NotChecked=0, Total=552 [2022-11-02 21:10:52,811 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 226 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:52,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 317 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:10:52,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2022-11-02 21:10:52,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 149. [2022-11-02 21:10:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 123 states have (on average 1.3414634146341464) internal successors, (165), 140 states have internal predecessors, (165), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 173 transitions. [2022-11-02 21:10:52,837 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 173 transitions. Word has length 39 [2022-11-02 21:10:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:52,837 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 173 transitions. [2022-11-02 21:10:52,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.857142857142857) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:10:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 173 transitions. [2022-11-02 21:10:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-02 21:10:52,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:52,839 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:52,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:53,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:10:53,053 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:53,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:53,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1521129115, now seen corresponding path program 1 times [2022-11-02 21:10:53,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:53,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878984260] [2022-11-02 21:10:53,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:53,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:53,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:53,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:53,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:53,308 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:53,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:53,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878984260] [2022-11-02 21:10:53,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878984260] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:53,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380241949] [2022-11-02 21:10:53,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:53,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:10:53,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:53,310 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:10:53,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:10:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:53,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:10:53,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:53,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:53,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:53,664 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:53,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380241949] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:10:53,665 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:10:53,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-02 21:10:53,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284967062] [2022-11-02 21:10:53,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:53,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:10:53,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:53,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:10:53,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:10:53,667 INFO L87 Difference]: Start difference. First operand 149 states and 173 transitions. Second operand has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:10:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:54,443 INFO L93 Difference]: Finished difference Result 410 states and 477 transitions. [2022-11-02 21:10:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:10:54,444 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2022-11-02 21:10:54,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:54,447 INFO L225 Difference]: With dead ends: 410 [2022-11-02 21:10:54,447 INFO L226 Difference]: Without dead ends: 298 [2022-11-02 21:10:54,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2022-11-02 21:10:54,448 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 153 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:54,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 564 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 21:10:54,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-11-02 21:10:54,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 149. [2022-11-02 21:10:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 140 states have internal predecessors, (161), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 169 transitions. [2022-11-02 21:10:54,488 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 169 transitions. Word has length 42 [2022-11-02 21:10:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:54,489 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 169 transitions. [2022-11-02 21:10:54,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.384615384615385) internal successors, (70), 13 states have internal predecessors, (70), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:10:54,489 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 169 transitions. [2022-11-02 21:10:54,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-02 21:10:54,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:54,490 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:10:54,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-02 21:10:54,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 21:10:54,714 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:54,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:54,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1918333276, now seen corresponding path program 2 times [2022-11-02 21:10:54,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:54,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878686792] [2022-11-02 21:10:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:54,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:54,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:54,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:54,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878686792] [2022-11-02 21:10:54,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878686792] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:54,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139509271] [2022-11-02 21:10:54,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:10:54,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:10:54,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:54,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:10:55,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:10:55,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:10:55,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:10:55,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-02 21:10:55,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:55,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 87 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:55,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139509271] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:10:55,627 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:10:55,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2022-11-02 21:10:55,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696641959] [2022-11-02 21:10:55,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:55,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-02 21:10:55,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-02 21:10:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2022-11-02 21:10:55,630 INFO L87 Difference]: Start difference. First operand 149 states and 169 transitions. Second operand has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:10:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:10:56,510 INFO L93 Difference]: Finished difference Result 822 states and 966 transitions. [2022-11-02 21:10:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-02 21:10:56,511 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2022-11-02 21:10:56,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:10:56,514 INFO L225 Difference]: With dead ends: 822 [2022-11-02 21:10:56,514 INFO L226 Difference]: Without dead ends: 720 [2022-11-02 21:10:56,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=740, Invalid=1152, Unknown=0, NotChecked=0, Total=1892 [2022-11-02 21:10:56,516 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 585 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:10:56,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 508 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-02 21:10:56,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-11-02 21:10:56,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 189. [2022-11-02 21:10:56,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 163 states have (on average 1.2822085889570551) internal successors, (209), 180 states have internal predecessors, (209), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:10:56,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 217 transitions. [2022-11-02 21:10:56,553 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 217 transitions. Word has length 59 [2022-11-02 21:10:56,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:10:56,553 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 217 transitions. [2022-11-02 21:10:56,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:10:56,553 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 217 transitions. [2022-11-02 21:10:56,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-02 21:10:56,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:10:56,554 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 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] [2022-11-02 21:10:56,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 21:10:56,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-02 21:10:56,770 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:10:56,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:10:56,771 INFO L85 PathProgramCache]: Analyzing trace with hash 905322395, now seen corresponding path program 2 times [2022-11-02 21:10:56,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:10:56,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253657837] [2022-11-02 21:10:56,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:10:56,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:10:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:56,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:10:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:10:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:10:57,157 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:57,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:10:57,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253657837] [2022-11-02 21:10:57,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253657837] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:10:57,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293279113] [2022-11-02 21:10:57,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:10:57,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:10:57,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:10:57,161 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:10:57,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:10:57,272 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:10:57,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:10:57,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:10:57,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:10:57,494 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:57,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:10:57,962 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 13 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:10:57,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293279113] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:10:57,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:10:57,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2022-11-02 21:10:57,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354294770] [2022-11-02 21:10:57,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:10:57,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-02 21:10:57,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:10:57,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-02 21:10:57,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2022-11-02 21:10:57,964 INFO L87 Difference]: Start difference. First operand 189 states and 217 transitions. Second operand has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:11:04,232 WARN L234 SmtUtils]: Spent 5.98s 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) [2022-11-02 21:11:22,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:22,403 INFO L93 Difference]: Finished difference Result 594 states and 697 transitions. [2022-11-02 21:11:22,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-02 21:11:22,404 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2022-11-02 21:11:22,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:22,406 INFO L225 Difference]: With dead ends: 594 [2022-11-02 21:11:22,407 INFO L226 Difference]: Without dead ends: 482 [2022-11-02 21:11:22,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=501, Invalid=902, Unknown=3, NotChecked=0, Total=1406 [2022-11-02 21:11:22,409 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 533 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:22,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 1086 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 556 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-02 21:11:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-11-02 21:11:22,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 189. [2022-11-02 21:11:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 163 states have (on average 1.2331288343558282) internal successors, (201), 180 states have internal predecessors, (201), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:11:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 209 transitions. [2022-11-02 21:11:22,442 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 209 transitions. Word has length 62 [2022-11-02 21:11:22,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:22,443 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 209 transitions. [2022-11-02 21:11:22,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.2) internal successors, (130), 25 states have internal predecessors, (130), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-02 21:11:22,444 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 209 transitions. [2022-11-02 21:11:22,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-02 21:11:22,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:22,445 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:11:22,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:22,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-02 21:11:22,658 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:11:22,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:22,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2128200540, now seen corresponding path program 3 times [2022-11-02 21:11:22,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:22,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762610067] [2022-11-02 21:11:22,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:22,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:22,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:11:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:22,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:11:22,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:23,433 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:11:23,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:23,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762610067] [2022-11-02 21:11:23,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762610067] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:11:23,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655296810] [2022-11-02 21:11:23,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:11:23,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:23,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:23,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:23,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:11:23,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2022-11-02 21:11:23,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:11:23,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-02 21:11:23,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:11:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:11:24,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:11:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 9 proven. 483 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:11:25,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655296810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:11:25,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:11:25,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2022-11-02 21:11:25,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714551390] [2022-11-02 21:11:25,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:11:25,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-11-02 21:11:25,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:11:25,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-11-02 21:11:25,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2022-11-02 21:11:25,239 INFO L87 Difference]: Start difference. First operand 189 states and 209 transitions. Second operand has 50 states, 50 states have (on average 4.96) internal successors, (248), 50 states have internal predecessors, (248), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:11:27,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:11:27,566 INFO L93 Difference]: Finished difference Result 1454 states and 1718 transitions. [2022-11-02 21:11:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-02 21:11:27,567 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.96) internal successors, (248), 50 states have internal predecessors, (248), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 99 [2022-11-02 21:11:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:11:27,572 INFO L225 Difference]: With dead ends: 1454 [2022-11-02 21:11:27,572 INFO L226 Difference]: Without dead ends: 1352 [2022-11-02 21:11:27,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1824 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2696, Invalid=4276, Unknown=0, NotChecked=0, Total=6972 [2022-11-02 21:11:27,577 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 1556 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:11:27,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 630 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-02 21:11:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2022-11-02 21:11:27,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 269. [2022-11-02 21:11:27,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 243 states have (on average 1.2222222222222223) internal successors, (297), 260 states have internal predecessors, (297), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-02 21:11:27,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 305 transitions. [2022-11-02 21:11:27,628 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 305 transitions. Word has length 99 [2022-11-02 21:11:27,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:11:27,629 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 305 transitions. [2022-11-02 21:11:27,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.96) internal successors, (248), 50 states have internal predecessors, (248), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-02 21:11:27,630 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 305 transitions. [2022-11-02 21:11:27,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-02 21:11:27,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:11:27,631 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 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] [2022-11-02 21:11:27,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:11:27,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:27,843 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2022-11-02 21:11:27,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:11:27,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2072923749, now seen corresponding path program 3 times [2022-11-02 21:11:27,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:11:27,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732349344] [2022-11-02 21:11:27,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:11:27,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:11:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:28,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:11:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:28,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-02 21:11:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:11:28,762 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 13 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:11:28,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:11:28,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732349344] [2022-11-02 21:11:28,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732349344] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:11:28,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070476851] [2022-11-02 21:11:28,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-02 21:11:28,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:11:28,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:11:28,779 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:11:28,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84ef1160-2170-4976-9580-7cfa93e2fb5a/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 21:13:10,773 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-11-02 21:13:10,773 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:13:10,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-02 21:13:10,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:13:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 13 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:13:12,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:14:03,691 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 13 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-02 21:14:03,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070476851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:14:03,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:14:03,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 21] total 55 [2022-11-02 21:14:03,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585700169] [2022-11-02 21:14:03,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:14:03,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-11-02 21:14:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:14:03,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-11-02 21:14:03,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=804, Invalid=2158, Unknown=8, NotChecked=0, Total=2970 [2022-11-02 21:14:03,695 INFO L87 Difference]: Start difference. First operand 269 states and 305 transitions. Second operand has 55 states, 55 states have (on average 4.545454545454546) internal successors, (250), 55 states have internal predecessors, (250), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)