./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R --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 bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 --- 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-38b53e6 [2022-11-25 16:58:53,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:58:53,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:58:53,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:58:53,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:58:53,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:58:53,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:58:53,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:58:53,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:58:53,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:58:53,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:58:53,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:58:53,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:58:53,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:58:53,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:58:53,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:58:53,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:58:53,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:58:53,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:58:53,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:58:53,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:58:53,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:58:53,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:58:53,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:58:53,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:58:53,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:58:53,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:58:53,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:58:53,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:58:53,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:58:53,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:58:53,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:58:53,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:58:53,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:58:53,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:58:53,486 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:58:53,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:58:53,492 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:58:53,492 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:58:53,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:58:53,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:58:53,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 16:58:53,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:58:53,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:58:53,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:58:53,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:58:53,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:58:53,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:58:53,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:58:53,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:58:53,543 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:58:53,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:58:53,544 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:58:53,544 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:58:53,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:58:53,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:58:53,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:58:53,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:58:53,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:58:53,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:58:53,545 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 16:58:53,546 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:58:53,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:58:53,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:58:53,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:58:53,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:58:53,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:58:53,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:58:53,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:58:53,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:58:53,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:58:53,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:58:53,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:58:53,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:58:53,549 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:58:53,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:58:53,549 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:58:53,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:58:53,549 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb0a504b43b0de742fcc89ebbe9d313056bb1824edece6c56238a649b6f48626 [2022-11-25 16:58:53,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:58:53,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:58:53,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:58:53,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:58:53,915 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:58:53,917 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2022-11-25 16:58:56,980 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:58:57,284 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:58:57,285 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2022-11-25 16:58:57,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/data/5330c15cd/b755f81e468c4ce4bd983a5f81394453/FLAGc38192122 [2022-11-25 16:58:57,333 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/data/5330c15cd/b755f81e468c4ce4bd983a5f81394453 [2022-11-25 16:58:57,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:58:57,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:58:57,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:58:57,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:58:57,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:58:57,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:57,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2c8b54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57, skipping insertion in model container [2022-11-25 16:58:57,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:57,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:58:57,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:58:57,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:58:57,871 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:58:57,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:58:57,966 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:58:57,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57 WrapperNode [2022-11-25 16:58:57,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:58:57,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:58:57,968 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:58:57,968 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:58:57,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:57,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,016 INFO L138 Inliner]: procedures = 166, calls = 80, calls flagged for inlining = 24, calls inlined = 6, statements flattened = 102 [2022-11-25 16:58:58,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:58:58,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:58:58,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:58:58,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:58:58,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,044 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:58:58,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:58:58,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:58:58,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:58:58,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (1/1) ... [2022-11-25 16:58:58,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:58:58,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:58:58,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:58:58,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:58:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 16:58:58,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 16:58:58,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:58:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:58:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 16:58:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 16:58:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:58:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 16:58:58,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:58:58,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:58:58,300 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:58:58,303 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:58:58,557 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:58:58,564 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:58:58,564 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 16:58:58,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:58:58 BoogieIcfgContainer [2022-11-25 16:58:58,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:58:58,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:58:58,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:58:58,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:58:58,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:58:57" (1/3) ... [2022-11-25 16:58:58,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5b5e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:58:58, skipping insertion in model container [2022-11-25 16:58:58,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:57" (2/3) ... [2022-11-25 16:58:58,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5b5e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:58:58, skipping insertion in model container [2022-11-25 16:58:58,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:58:58" (3/3) ... [2022-11-25 16:58:58,577 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2022-11-25 16:58:58,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:58:58,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-25 16:58:58,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:58:58,725 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@684e1a73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:58:58,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-25 16:58:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 38 states have (on average 1.605263157894737) internal successors, (61), 48 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:58:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 16:58:58,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:58,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:58,740 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:58:58,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:58,746 INFO L85 PathProgramCache]: Analyzing trace with hash -920797956, now seen corresponding path program 1 times [2022-11-25 16:58:58,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:58,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683864815] [2022-11-25 16:58:58,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:58,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:58:58,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:58,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:58,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683864815] [2022-11-25 16:58:58,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683864815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:58,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:58,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:58:58,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587385108] [2022-11-25 16:58:58,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:58,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:58:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:59,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:58:59,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:58:59,056 INFO L87 Difference]: Start difference. First operand has 52 states, 38 states have (on average 1.605263157894737) internal successors, (61), 48 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:58:59,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:59,164 INFO L93 Difference]: Finished difference Result 101 states and 126 transitions. [2022-11-25 16:58:59,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:58:59,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 16:58:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:59,183 INFO L225 Difference]: With dead ends: 101 [2022-11-25 16:58:59,183 INFO L226 Difference]: Without dead ends: 49 [2022-11-25 16:58:59,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:58:59,194 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:59,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 113 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:58:59,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-25 16:58:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2022-11-25 16:58:59,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 43 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:58:59,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2022-11-25 16:58:59,251 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 15 [2022-11-25 16:58:59,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:58:59,252 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2022-11-25 16:58:59,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:58:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2022-11-25 16:58:59,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 16:58:59,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:59,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:59,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:58:59,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:58:59,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash -219733378, now seen corresponding path program 1 times [2022-11-25 16:58:59,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:59,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16079919] [2022-11-25 16:58:59,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:59,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:59,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:58:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:59,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:59,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16079919] [2022-11-25 16:58:59,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16079919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:59,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:59,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:58:59,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860776768] [2022-11-25 16:58:59,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:59,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:58:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:58:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:58:59,507 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:58:59,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:59,619 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2022-11-25 16:58:59,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:58:59,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-25 16:58:59,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:59,626 INFO L225 Difference]: With dead ends: 84 [2022-11-25 16:58:59,626 INFO L226 Difference]: Without dead ends: 82 [2022-11-25 16:58:59,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:58:59,632 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:59,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 195 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:58:59,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-25 16:58:59,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 51. [2022-11-25 16:58:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 47 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:58:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2022-11-25 16:58:59,661 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 15 [2022-11-25 16:58:59,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:58:59,663 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2022-11-25 16:58:59,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:58:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2022-11-25 16:58:59,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 16:58:59,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:59,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:59,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:58:59,667 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:58:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:59,674 INFO L85 PathProgramCache]: Analyzing trace with hash 227966458, now seen corresponding path program 1 times [2022-11-25 16:58:59,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:59,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96890519] [2022-11-25 16:58:59,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:59,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:58:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:59,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:59,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96890519] [2022-11-25 16:58:59,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96890519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:58:59,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287135856] [2022-11-25 16:58:59,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:59,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:58:59,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:58:59,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:58:59,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:59:00,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:00,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:59:00,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:00,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:59:00,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287135856] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:00,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:59:00,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2022-11-25 16:59:00,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435138117] [2022-11-25 16:59:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:00,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:00,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:00,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:59:00,135 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:00,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:00,202 INFO L93 Difference]: Finished difference Result 80 states and 92 transitions. [2022-11-25 16:59:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:00,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-25 16:59:00,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:00,205 INFO L225 Difference]: With dead ends: 80 [2022-11-25 16:59:00,205 INFO L226 Difference]: Without dead ends: 79 [2022-11-25 16:59:00,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:59:00,207 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 93 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:00,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:00,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-11-25 16:59:00,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 50. [2022-11-25 16:59:00,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 46 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:00,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2022-11-25 16:59:00,217 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 19 [2022-11-25 16:59:00,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:00,218 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2022-11-25 16:59:00,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:00,218 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2022-11-25 16:59:00,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 16:59:00,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:00,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:00,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 16:59:00,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:00,430 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:00,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:00,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1831347923, now seen corresponding path program 1 times [2022-11-25 16:59:00,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:00,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618215318] [2022-11-25 16:59:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:00,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:00,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:00,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618215318] [2022-11-25 16:59:00,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618215318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:00,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:00,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:59:00,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121522931] [2022-11-25 16:59:00,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:00,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:59:00,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:00,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:59:00,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:59:00,681 INFO L87 Difference]: Start difference. First operand 50 states and 58 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:00,772 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2022-11-25 16:59:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:59:00,773 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-25 16:59:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:00,774 INFO L225 Difference]: With dead ends: 58 [2022-11-25 16:59:00,774 INFO L226 Difference]: Without dead ends: 56 [2022-11-25 16:59:00,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:00,776 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 6 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:00,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 192 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:00,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-11-25 16:59:00,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2022-11-25 16:59:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.380952380952381) internal successors, (58), 50 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:00,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2022-11-25 16:59:00,785 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 20 [2022-11-25 16:59:00,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:00,785 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2022-11-25 16:59:00,785 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:00,786 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2022-11-25 16:59:00,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 16:59:00,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:00,787 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:00,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:59:00,787 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:00,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1522974324, now seen corresponding path program 1 times [2022-11-25 16:59:00,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:00,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389711357] [2022-11-25 16:59:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:00,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:00,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:00,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:00,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:00,962 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:00,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:00,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389711357] [2022-11-25 16:59:00,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389711357] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:00,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917405719] [2022-11-25 16:59:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:00,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:00,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:00,971 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:00,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:59:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:59:01,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:01,114 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:01,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:01,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917405719] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:01,194 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:01,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-25 16:59:01,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188413664] [2022-11-25 16:59:01,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:01,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:59:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:01,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:59:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:59:01,196 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2022-11-25 16:59:01,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:01,355 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2022-11-25 16:59:01,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:59:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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 [2022-11-25 16:59:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:01,358 INFO L225 Difference]: With dead ends: 201 [2022-11-25 16:59:01,358 INFO L226 Difference]: Without dead ends: 200 [2022-11-25 16:59:01,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:59:01,359 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 221 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:01,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 545 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-25 16:59:01,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 66. [2022-11-25 16:59:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 62 states have internal predecessors, (73), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-11-25 16:59:01,373 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 20 [2022-11-25 16:59:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:01,374 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-11-25 16:59:01,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2022-11-25 16:59:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-11-25 16:59:01,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 16:59:01,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:01,375 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:01,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:01,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:01,582 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:01,582 INFO L85 PathProgramCache]: Analyzing trace with hash -607812044, now seen corresponding path program 1 times [2022-11-25 16:59:01,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:01,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593453353] [2022-11-25 16:59:01,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:01,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 16:59:01,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 16:59:01,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:01,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593453353] [2022-11-25 16:59:01,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593453353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:01,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:01,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:59:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993419425] [2022-11-25 16:59:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:01,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:01,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:01,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:01,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:01,754 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:59:01,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:01,816 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2022-11-25 16:59:01,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:59:01,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-25 16:59:01,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:01,819 INFO L225 Difference]: With dead ends: 113 [2022-11-25 16:59:01,819 INFO L226 Difference]: Without dead ends: 91 [2022-11-25 16:59:01,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:59:01,822 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:01,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 295 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:01,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-25 16:59:01,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 70. [2022-11-25 16:59:01,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 65 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 16:59:01,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2022-11-25 16:59:01,849 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 23 [2022-11-25 16:59:01,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:01,849 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2022-11-25 16:59:01,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:59:01,850 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2022-11-25 16:59:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-25 16:59:01,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:01,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:01,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:59:01,854 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:01,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:01,854 INFO L85 PathProgramCache]: Analyzing trace with hash -579182893, now seen corresponding path program 1 times [2022-11-25 16:59:01,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:01,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941497047] [2022-11-25 16:59:01,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:01,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 16:59:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:01,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:01,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:01,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941497047] [2022-11-25 16:59:01,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941497047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:01,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:01,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:59:01,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107990309] [2022-11-25 16:59:01,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:01,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:59:01,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:01,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:59:01,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:59:01,938 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:01,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:01,998 INFO L93 Difference]: Finished difference Result 104 states and 121 transitions. [2022-11-25 16:59:01,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:59:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-11-25 16:59:01,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:02,000 INFO L225 Difference]: With dead ends: 104 [2022-11-25 16:59:02,000 INFO L226 Difference]: Without dead ends: 102 [2022-11-25 16:59:02,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:59:02,001 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 27 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:02,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 136 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:02,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-11-25 16:59:02,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 76. [2022-11-25 16:59:02,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 62 states have (on average 1.3387096774193548) internal successors, (83), 70 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:02,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 92 transitions. [2022-11-25 16:59:02,013 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 92 transitions. Word has length 23 [2022-11-25 16:59:02,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:02,013 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 92 transitions. [2022-11-25 16:59:02,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:02,014 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 92 transitions. [2022-11-25 16:59:02,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 16:59:02,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:02,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:02,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:59:02,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:02,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1662302506, now seen corresponding path program 1 times [2022-11-25 16:59:02,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:02,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784485248] [2022-11-25 16:59:02,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:02,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-25 16:59:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:02,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:02,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784485248] [2022-11-25 16:59:02,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784485248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:02,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:02,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:59:02,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668958094] [2022-11-25 16:59:02,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:02,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:59:02,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:02,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:59:02,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:59:02,116 INFO L87 Difference]: Start difference. First operand 76 states and 92 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:02,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:02,195 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-11-25 16:59:02,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:59:02,196 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-25 16:59:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:02,197 INFO L225 Difference]: With dead ends: 102 [2022-11-25 16:59:02,197 INFO L226 Difference]: Without dead ends: 100 [2022-11-25 16:59:02,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:02,199 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 26 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:02,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 178 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:02,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-25 16:59:02,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 81. [2022-11-25 16:59:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 74 states have internal predecessors, (88), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:02,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2022-11-25 16:59:02,226 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 24 [2022-11-25 16:59:02,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:02,227 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2022-11-25 16:59:02,227 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:02,227 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2022-11-25 16:59:02,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 16:59:02,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:02,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:02,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:59:02,229 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:02,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:02,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1140733481, now seen corresponding path program 1 times [2022-11-25 16:59:02,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:02,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705730675] [2022-11-25 16:59:02,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:02,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:59:02,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:02,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705730675] [2022-11-25 16:59:02,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705730675] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:02,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:02,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:59:02,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361721795] [2022-11-25 16:59:02,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:02,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:02,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:02,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:02,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:02,334 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:02,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:02,415 INFO L93 Difference]: Finished difference Result 133 states and 157 transitions. [2022-11-25 16:59:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:02,416 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-25 16:59:02,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:02,417 INFO L225 Difference]: With dead ends: 133 [2022-11-25 16:59:02,417 INFO L226 Difference]: Without dead ends: 81 [2022-11-25 16:59:02,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:59:02,420 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 92 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:02,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 132 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:02,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-25 16:59:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-11-25 16:59:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.2985074626865671) internal successors, (87), 74 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:02,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 96 transitions. [2022-11-25 16:59:02,435 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 96 transitions. Word has length 24 [2022-11-25 16:59:02,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:02,437 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 96 transitions. [2022-11-25 16:59:02,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:02,437 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 96 transitions. [2022-11-25 16:59:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-25 16:59:02,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:02,444 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:59:02,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:59:02,445 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:02,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:02,445 INFO L85 PathProgramCache]: Analyzing trace with hash 754452013, now seen corresponding path program 1 times [2022-11-25 16:59:02,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:02,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774711594] [2022-11-25 16:59:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:02,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:02,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:02,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774711594] [2022-11-25 16:59:02,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774711594] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:02,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:02,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:59:02,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693778217] [2022-11-25 16:59:02,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:02,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:02,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:02,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:02,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:02,593 INFO L87 Difference]: Start difference. First operand 81 states and 96 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:02,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:02,698 INFO L93 Difference]: Finished difference Result 111 states and 127 transitions. [2022-11-25 16:59:02,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:02,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-11-25 16:59:02,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:02,700 INFO L225 Difference]: With dead ends: 111 [2022-11-25 16:59:02,700 INFO L226 Difference]: Without dead ends: 99 [2022-11-25 16:59:02,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:59:02,702 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 133 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:02,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 145 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-25 16:59:02,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 81. [2022-11-25 16:59:02,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 67 states have (on average 1.2835820895522387) internal successors, (86), 74 states have internal predecessors, (86), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:02,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 95 transitions. [2022-11-25 16:59:02,717 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 95 transitions. Word has length 28 [2022-11-25 16:59:02,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:02,719 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 95 transitions. [2022-11-25 16:59:02,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 16:59:02,720 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 95 transitions. [2022-11-25 16:59:02,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 16:59:02,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:02,721 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 16:59:02,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:59:02,721 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:02,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:02,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1876932633, now seen corresponding path program 1 times [2022-11-25 16:59:02,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:02,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885372281] [2022-11-25 16:59:02,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:02,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 16:59:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:02,816 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 16:59:02,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:02,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885372281] [2022-11-25 16:59:02,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885372281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:02,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:02,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:59:02,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729474043] [2022-11-25 16:59:02,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:02,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:59:02,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:02,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:59:02,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:59:02,820 INFO L87 Difference]: Start difference. First operand 81 states and 95 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:02,896 INFO L93 Difference]: Finished difference Result 123 states and 139 transitions. [2022-11-25 16:59:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2022-11-25 16:59:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:02,898 INFO L225 Difference]: With dead ends: 123 [2022-11-25 16:59:02,898 INFO L226 Difference]: Without dead ends: 105 [2022-11-25 16:59:02,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:02,899 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 33 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:02,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 202 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-25 16:59:02,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 82. [2022-11-25 16:59:02,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 75 states have internal predecessors, (87), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:02,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2022-11-25 16:59:02,912 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 96 transitions. Word has length 31 [2022-11-25 16:59:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:02,912 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 96 transitions. [2022-11-25 16:59:02,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 96 transitions. [2022-11-25 16:59:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 16:59:02,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:02,915 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:02,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:59:02,916 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash 491237784, now seen corresponding path program 2 times [2022-11-25 16:59:02,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:02,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538067849] [2022-11-25 16:59:02,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:02,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:03,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:03,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:03,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538067849] [2022-11-25 16:59:03,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538067849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:03,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046399644] [2022-11-25 16:59:03,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:59:03,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:03,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:03,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:03,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 16:59:03,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 16:59:03,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:59:03,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:59:03,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:03,463 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 16:59:03,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 16:59:03,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046399644] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:03,592 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:03,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 17 [2022-11-25 16:59:03,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413600584] [2022-11-25 16:59:03,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:03,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 16:59:03,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:03,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 16:59:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-11-25 16:59:03,594 INFO L87 Difference]: Start difference. First operand 82 states and 96 transitions. Second operand has 18 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:04,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:04,091 INFO L93 Difference]: Finished difference Result 322 states and 379 transitions. [2022-11-25 16:59:04,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 16:59:04,092 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-11-25 16:59:04,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:04,095 INFO L225 Difference]: With dead ends: 322 [2022-11-25 16:59:04,095 INFO L226 Difference]: Without dead ends: 321 [2022-11-25 16:59:04,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2022-11-25 16:59:04,096 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 588 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:04,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 690 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:59:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-25 16:59:04,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 66. [2022-11-25 16:59:04,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.2830188679245282) internal successors, (68), 59 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:04,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 77 transitions. [2022-11-25 16:59:04,120 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 77 transitions. Word has length 32 [2022-11-25 16:59:04,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:04,120 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 77 transitions. [2022-11-25 16:59:04,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 16:59:04,121 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 77 transitions. [2022-11-25 16:59:04,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 16:59:04,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:04,121 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:04,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:04,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 16:59:04,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:04,333 INFO L85 PathProgramCache]: Analyzing trace with hash -539706370, now seen corresponding path program 1 times [2022-11-25 16:59:04,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:04,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271400526] [2022-11-25 16:59:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:04,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:04,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:04,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 16:59:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:59:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:04,457 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:59:04,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:04,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271400526] [2022-11-25 16:59:04,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271400526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:04,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645370189] [2022-11-25 16:59:04,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:04,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:04,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:04,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:04,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 16:59:04,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:04,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:59:04,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:04,627 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:59:04,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:59:04,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645370189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:04,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:59:04,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-11-25 16:59:04,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172424672] [2022-11-25 16:59:04,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:04,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:59:04,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:04,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:59:04,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:59:04,629 INFO L87 Difference]: Start difference. First operand 66 states and 77 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 16:59:04,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:04,690 INFO L93 Difference]: Finished difference Result 78 states and 89 transitions. [2022-11-25 16:59:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:04,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2022-11-25 16:59:04,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:04,692 INFO L225 Difference]: With dead ends: 78 [2022-11-25 16:59:04,692 INFO L226 Difference]: Without dead ends: 76 [2022-11-25 16:59:04,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 16:59:04,693 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 56 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:04,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 123 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:04,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-25 16:59:04,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2022-11-25 16:59:04,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 57 states have internal predecessors, (66), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:04,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2022-11-25 16:59:04,705 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 38 [2022-11-25 16:59:04,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:04,705 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2022-11-25 16:59:04,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 16:59:04,706 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2022-11-25 16:59:04,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-25 16:59:04,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:04,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:04,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:04,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:04,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:04,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:04,912 INFO L85 PathProgramCache]: Analyzing trace with hash 448971818, now seen corresponding path program 1 times [2022-11-25 16:59:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:04,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568881595] [2022-11-25 16:59:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:04,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 16:59:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:59:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:59:05,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:05,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568881595] [2022-11-25 16:59:05,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568881595] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:05,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354568655] [2022-11-25 16:59:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:05,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:05,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:05,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 16:59:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 16:59:05,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:05,236 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:59:05,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 16:59:05,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354568655] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:05,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 16:59:05,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-25 16:59:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245745701] [2022-11-25 16:59:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:05,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:59:05,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:59:05,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:59:05,239 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:59:05,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:05,260 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2022-11-25 16:59:05,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:59:05,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-11-25 16:59:05,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:05,262 INFO L225 Difference]: With dead ends: 64 [2022-11-25 16:59:05,262 INFO L226 Difference]: Without dead ends: 63 [2022-11-25 16:59:05,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 16:59:05,263 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 22 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:05,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 63 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:05,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-11-25 16:59:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-11-25 16:59:05,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 56 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-25 16:59:05,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2022-11-25 16:59:05,278 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 39 [2022-11-25 16:59:05,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:05,278 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2022-11-25 16:59:05,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:59:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2022-11-25 16:59:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-25 16:59:05,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:05,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:05,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:05,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 16:59:05,485 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:05,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash -264908981, now seen corresponding path program 1 times [2022-11-25 16:59:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:05,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925853828] [2022-11-25 16:59:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:05,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 16:59:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-25 16:59:05,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:05,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925853828] [2022-11-25 16:59:05,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925853828] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:05,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560627776] [2022-11-25 16:59:05,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:05,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:05,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:05,592 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:05,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 16:59:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:05,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:59:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:05,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:06,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560627776] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:06,009 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:06,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2022-11-25 16:59:06,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155513964] [2022-11-25 16:59:06,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:06,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 16:59:06,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 16:59:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:59:06,011 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:59:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:06,350 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2022-11-25 16:59:06,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-25 16:59:06,351 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-11-25 16:59:06,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:06,352 INFO L225 Difference]: With dead ends: 114 [2022-11-25 16:59:06,352 INFO L226 Difference]: Without dead ends: 97 [2022-11-25 16:59:06,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 65 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:59:06,355 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 62 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 687 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:06,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 687 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:59:06,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-25 16:59:06,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 89. [2022-11-25 16:59:06,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.205128205128205) internal successors, (94), 79 states have internal predecessors, (94), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-25 16:59:06,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2022-11-25 16:59:06,378 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 38 [2022-11-25 16:59:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:06,379 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2022-11-25 16:59:06,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.588235294117647) internal successors, (61), 16 states have internal predecessors, (61), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 16:59:06,379 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2022-11-25 16:59:06,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-25 16:59:06,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:06,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:06,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-25 16:59:06,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 16:59:06,596 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:06,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -709537100, now seen corresponding path program 1 times [2022-11-25 16:59:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:06,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802951299] [2022-11-25 16:59:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:06,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:06,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:06,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-25 16:59:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:06,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-25 16:59:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 16:59:06,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:06,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802951299] [2022-11-25 16:59:06,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802951299] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:06,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379529632] [2022-11-25 16:59:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:06,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:06,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:06,719 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:06,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 16:59:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:06,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 16:59:06,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:06,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-25 16:59:07,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379529632] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:07,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:07,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 9] total 17 [2022-11-25 16:59:07,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598942189] [2022-11-25 16:59:07,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:07,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 16:59:07,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:07,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 16:59:07,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:59:07,132 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 16:59:07,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:07,490 INFO L93 Difference]: Finished difference Result 162 states and 184 transitions. [2022-11-25 16:59:07,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 16:59:07,491 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 40 [2022-11-25 16:59:07,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:07,492 INFO L225 Difference]: With dead ends: 162 [2022-11-25 16:59:07,492 INFO L226 Difference]: Without dead ends: 129 [2022-11-25 16:59:07,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 70 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-11-25 16:59:07,493 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 97 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:07,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 502 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:59:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-11-25 16:59:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 75. [2022-11-25 16:59:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 65 states have (on average 1.2) internal successors, (78), 66 states have internal predecessors, (78), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:59:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 90 transitions. [2022-11-25 16:59:07,508 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 90 transitions. Word has length 40 [2022-11-25 16:59:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:07,508 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 90 transitions. [2022-11-25 16:59:07,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 6 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-25 16:59:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 90 transitions. [2022-11-25 16:59:07,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 16:59:07,509 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:07,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:07,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:07,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-25 16:59:07,715 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:07,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:07,715 INFO L85 PathProgramCache]: Analyzing trace with hash 116900379, now seen corresponding path program 1 times [2022-11-25 16:59:07,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:07,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331407175] [2022-11-25 16:59:07,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:07,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:07,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:07,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:59:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:07,838 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 16:59:07,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:07,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331407175] [2022-11-25 16:59:07,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331407175] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:07,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963482969] [2022-11-25 16:59:07,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:07,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:07,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:07,842 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:07,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 16:59:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:07,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 16:59:07,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:08,001 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 16:59:08,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 16:59:08,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963482969] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:08,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:08,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-11-25 16:59:08,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243901175] [2022-11-25 16:59:08,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:08,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:59:08,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:08,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:59:08,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:59:08,055 INFO L87 Difference]: Start difference. First operand 75 states and 90 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:59:08,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:08,155 INFO L93 Difference]: Finished difference Result 88 states and 105 transitions. [2022-11-25 16:59:08,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-25 16:59:08,155 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-25 16:59:08,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:08,156 INFO L225 Difference]: With dead ends: 88 [2022-11-25 16:59:08,156 INFO L226 Difference]: Without dead ends: 87 [2022-11-25 16:59:08,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:59:08,157 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 15 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:08,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 262 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:08,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-25 16:59:08,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-25 16:59:08,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 77 states have (on average 1.1688311688311688) internal successors, (90), 78 states have internal predecessors, (90), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:59:08,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2022-11-25 16:59:08,175 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 43 [2022-11-25 16:59:08,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:08,175 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2022-11-25 16:59:08,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:59:08,176 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2022-11-25 16:59:08,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 16:59:08,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:08,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:08,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:08,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-25 16:59:08,383 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:08,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:08,383 INFO L85 PathProgramCache]: Analyzing trace with hash -772088500, now seen corresponding path program 1 times [2022-11-25 16:59:08,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:08,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703340317] [2022-11-25 16:59:08,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:08,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:59:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 16:59:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,456 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 16:59:08,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:08,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703340317] [2022-11-25 16:59:08,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703340317] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:08,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:08,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:59:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479946879] [2022-11-25 16:59:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:08,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:59:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:59:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:59:08,459 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:59:08,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:08,506 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2022-11-25 16:59:08,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:59:08,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2022-11-25 16:59:08,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:08,508 INFO L225 Difference]: With dead ends: 87 [2022-11-25 16:59:08,508 INFO L226 Difference]: Without dead ends: 86 [2022-11-25 16:59:08,508 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 [2022-11-25 16:59:08,509 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 8 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:08,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 165 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:59:08,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-25 16:59:08,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-25 16:59:08,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 77 states have (on average 1.155844155844156) internal successors, (89), 77 states have internal predecessors, (89), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:59:08,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 101 transitions. [2022-11-25 16:59:08,541 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 101 transitions. Word has length 46 [2022-11-25 16:59:08,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:08,541 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 101 transitions. [2022-11-25 16:59:08,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 16:59:08,542 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 101 transitions. [2022-11-25 16:59:08,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 16:59:08,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:08,544 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:08,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 16:59:08,544 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:08,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1835060394, now seen corresponding path program 1 times [2022-11-25 16:59:08,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:08,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563745278] [2022-11-25 16:59:08,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:08,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:59:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 16:59:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,695 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 16:59:08,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:08,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563745278] [2022-11-25 16:59:08,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563745278] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:08,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103245979] [2022-11-25 16:59:08,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:08,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:08,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:08,698 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:08,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 16:59:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:08,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:59:08,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:08,889 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 16:59:08,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:08,987 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 16:59:08,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103245979] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:08,988 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:08,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-11-25 16:59:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593122768] [2022-11-25 16:59:08,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:08,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-25 16:59:08,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-25 16:59:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-11-25 16:59:08,993 INFO L87 Difference]: Start difference. First operand 86 states and 101 transitions. Second operand has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:59:09,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:09,234 INFO L93 Difference]: Finished difference Result 183 states and 200 transitions. [2022-11-25 16:59:09,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:59:09,234 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 47 [2022-11-25 16:59:09,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:09,235 INFO L225 Difference]: With dead ends: 183 [2022-11-25 16:59:09,236 INFO L226 Difference]: Without dead ends: 182 [2022-11-25 16:59:09,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:59:09,237 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 125 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:09,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 352 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:09,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-11-25 16:59:09,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 85. [2022-11-25 16:59:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 77 states have (on average 1.1428571428571428) internal successors, (88), 76 states have internal predecessors, (88), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 16:59:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 100 transitions. [2022-11-25 16:59:09,255 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 100 transitions. Word has length 47 [2022-11-25 16:59:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:09,256 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 100 transitions. [2022-11-25 16:59:09,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-25 16:59:09,256 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 100 transitions. [2022-11-25 16:59:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 16:59:09,257 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:09,258 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:09,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:09,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:09,463 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:09,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:09,463 INFO L85 PathProgramCache]: Analyzing trace with hash -369797407, now seen corresponding path program 2 times [2022-11-25 16:59:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:09,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433682579] [2022-11-25 16:59:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:09,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:59:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 16:59:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 16:59:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 16:59:09,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:09,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433682579] [2022-11-25 16:59:09,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433682579] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:09,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541617844] [2022-11-25 16:59:09,661 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:59:09,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:09,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:09,663 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:09,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 16:59:09,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 16:59:09,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:59:09,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:59:09,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 16:59:09,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:10,043 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-11-25 16:59:10,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541617844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:10,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:10,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 16 [2022-11-25 16:59:10,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236422110] [2022-11-25 16:59:10,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:10,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 16:59:10,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:10,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 16:59:10,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-25 16:59:10,048 INFO L87 Difference]: Start difference. First operand 85 states and 100 transitions. Second operand has 17 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 16:59:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:10,348 INFO L93 Difference]: Finished difference Result 295 states and 334 transitions. [2022-11-25 16:59:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:59:10,349 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 55 [2022-11-25 16:59:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:10,351 INFO L225 Difference]: With dead ends: 295 [2022-11-25 16:59:10,351 INFO L226 Difference]: Without dead ends: 294 [2022-11-25 16:59:10,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2022-11-25 16:59:10,352 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 149 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:10,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 525 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:59:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-11-25 16:59:10,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 121. [2022-11-25 16:59:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 109 states have (on average 1.1743119266055047) internal successors, (128), 104 states have internal predecessors, (128), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (16), 15 states have call predecessors, (16), 8 states have call successors, (16) [2022-11-25 16:59:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 152 transitions. [2022-11-25 16:59:10,377 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 152 transitions. Word has length 55 [2022-11-25 16:59:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:10,377 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 152 transitions. [2022-11-25 16:59:10,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 8 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 16:59:10,378 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 152 transitions. [2022-11-25 16:59:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 16:59:10,378 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:10,379 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:10,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:10,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:10,585 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:10,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:10,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1963645273, now seen corresponding path program 2 times [2022-11-25 16:59:10,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:10,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535578533] [2022-11-25 16:59:10,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:10,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:59:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 27 proven. 19 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 16:59:10,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:10,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535578533] [2022-11-25 16:59:10,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535578533] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:10,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172219522] [2022-11-25 16:59:10,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 16:59:10,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:10,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:10,955 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:10,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 16:59:11,089 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-25 16:59:11,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:59:11,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 16:59:11,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:11,291 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 16:59:11,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2022-11-25 16:59:11,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172219522] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:11,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:11,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7, 7] total 24 [2022-11-25 16:59:11,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716815955] [2022-11-25 16:59:11,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:11,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 16:59:11,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 16:59:11,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:59:11,461 INFO L87 Difference]: Start difference. First operand 121 states and 152 transitions. Second operand has 24 states, 24 states have (on average 3.25) internal successors, (78), 23 states have internal predecessors, (78), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 16:59:12,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:12,178 INFO L93 Difference]: Finished difference Result 225 states and 286 transitions. [2022-11-25 16:59:12,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-25 16:59:12,178 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.25) internal successors, (78), 23 states have internal predecessors, (78), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2022-11-25 16:59:12,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:12,180 INFO L225 Difference]: With dead ends: 225 [2022-11-25 16:59:12,180 INFO L226 Difference]: Without dead ends: 160 [2022-11-25 16:59:12,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 104 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-11-25 16:59:12,184 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 190 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:12,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 655 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 16:59:12,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-25 16:59:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 72. [2022-11-25 16:59:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 62 states have (on average 1.064516129032258) internal successors, (66), 62 states have internal predecessors, (66), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-25 16:59:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2022-11-25 16:59:12,201 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 55 [2022-11-25 16:59:12,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:12,203 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2022-11-25 16:59:12,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.25) internal successors, (78), 23 states have internal predecessors, (78), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 16:59:12,204 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2022-11-25 16:59:12,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-11-25 16:59:12,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:12,210 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:12,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:12,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:12,421 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-11-25 16:59:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:12,422 INFO L85 PathProgramCache]: Analyzing trace with hash 529198625, now seen corresponding path program 3 times [2022-11-25 16:59:12,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:12,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209792211] [2022-11-25 16:59:12,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:12,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-25 16:59:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 16:59:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 16:59:12,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-11-25 16:59:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 16:59:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 16:59:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-25 16:59:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 16:59:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2022-11-25 16:59:12,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:12,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209792211] [2022-11-25 16:59:12,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209792211] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:59:12,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992654766] [2022-11-25 16:59:12,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 16:59:12,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:12,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:59:12,877 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:59:12,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 16:59:13,150 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-25 16:59:13,150 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 16:59:13,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 16:59:13,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:59:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-25 16:59:13,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:59:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-25 16:59:13,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992654766] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:59:13,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:59:13,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 21 [2022-11-25 16:59:13,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678272283] [2022-11-25 16:59:13,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:59:13,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-25 16:59:13,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:13,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-25 16:59:13,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:59:13,561 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 16:59:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:14,017 INFO L93 Difference]: Finished difference Result 131 states and 164 transitions. [2022-11-25 16:59:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-25 16:59:14,018 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 99 [2022-11-25 16:59:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:14,018 INFO L225 Difference]: With dead ends: 131 [2022-11-25 16:59:14,018 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 16:59:14,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=266, Invalid=1140, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 16:59:14,021 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:14,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 267 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:59:14,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 16:59:14,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 16:59:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 16:59:14,023 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2022-11-25 16:59:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:14,023 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:59:14,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.857142857142857) internal successors, (81), 21 states have internal predecessors, (81), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-25 16:59:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 16:59:14,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 16:59:14,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-25 16:59:14,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2022-11-25 16:59:14,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2022-11-25 16:59:14,028 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-25 16:59:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-25 16:59:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-25 16:59:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-25 16:59:14,029 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-25 16:59:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-25 16:59:14,030 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-25 16:59:14,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 16:59:14,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_835e1865-843e-4732-bc04-26e8c1a155d1/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:59:14,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.