./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8 --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 382beab9cdcef42f6594628efe520684fdbc8c72ada26cb53ddf4918b8957d49 --- 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-2329fc7 [2022-12-13 13:57:33,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:57:33,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:57:33,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:57:33,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:57:33,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:57:33,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:57:33,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:57:33,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:57:33,487 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:57:33,488 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:57:33,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:57:33,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:57:33,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:57:33,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:57:33,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:57:33,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:57:33,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:57:33,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:57:33,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:57:33,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:57:33,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:57:33,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:57:33,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:57:33,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:57:33,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:57:33,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:57:33,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:57:33,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:57:33,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:57:33,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:57:33,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:57:33,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:57:33,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:57:33,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:57:33,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:57:33,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:57:33,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:57:33,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:57:33,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:57:33,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:57:33,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 13:57:33,534 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:57:33,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:57:33,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:57:33,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:57:33,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:57:33,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:57:33,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:57:33,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:57:33,543 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:57:33,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:57:33,544 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:57:33,544 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:57:33,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:57:33,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:57:33,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:57:33,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:57:33,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:57:33,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:57:33,545 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:57:33,545 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:57:33,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:57:33,546 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:57:33,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:57:33,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:57:33,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:57:33,547 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:57:33,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:57:33,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:57:33,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:57:33,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:57:33,548 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:57:33,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:57:33,548 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:57:33,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:57:33,548 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:57:33,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:57:33,549 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:57:33,549 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_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 382beab9cdcef42f6594628efe520684fdbc8c72ada26cb53ddf4918b8957d49 [2022-12-13 13:57:33,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:57:33,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:57:33,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:57:33,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:57:33,734 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:57:33,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i [2022-12-13 13:57:36,384 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:57:36,588 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:57:36,589 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/sv-benchmarks/c/array-memsafety/cstrcmp-alloca-2.i [2022-12-13 13:57:36,599 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/data/c5457a584/e4fd76387a4744ffa5c272336ae8659b/FLAGb5a89e241 [2022-12-13 13:57:36,614 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/data/c5457a584/e4fd76387a4744ffa5c272336ae8659b [2022-12-13 13:57:36,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:57:36,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:57:36,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:57:36,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:57:36,623 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:57:36,624 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:57:36" (1/1) ... [2022-12-13 13:57:36,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b24f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:36, skipping insertion in model container [2022-12-13 13:57:36,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:57:36" (1/1) ... [2022-12-13 13:57:36,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:57:36,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:57:36,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:57:36,941 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:57:36,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:57:37,004 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:57:37,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37 WrapperNode [2022-12-13 13:57:37,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:57:37,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:57:37,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:57:37,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:57:37,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,027 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,047 INFO L138 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 104 [2022-12-13 13:57:37,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:57:37,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:57:37,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:57:37,048 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:57:37,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:57:37,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:57:37,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:57:37,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:57:37,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (1/1) ... [2022-12-13 13:57:37,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:57:37,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:37,100 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:57:37,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:57:37,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:57:37,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:57:37,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:57:37,216 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:57:37,218 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:57:37,374 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:57:37,381 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:57:37,381 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 13:57:37,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:57:37 BoogieIcfgContainer [2022-12-13 13:57:37,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:57:37,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:57:37,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:57:37,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:57:37,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:57:36" (1/3) ... [2022-12-13 13:57:37,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29668ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:57:37, skipping insertion in model container [2022-12-13 13:57:37,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:57:37" (2/3) ... [2022-12-13 13:57:37,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29668ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:57:37, skipping insertion in model container [2022-12-13 13:57:37,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:57:37" (3/3) ... [2022-12-13 13:57:37,394 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcmp-alloca-2.i [2022-12-13 13:57:37,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:57:37,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 13:57:37,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:57:37,477 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;@2980976c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:57:37,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 13:57:37,482 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 41 states have internal predecessors, (50), 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) [2022-12-13 13:57:37,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 13:57:37,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:37,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:57:37,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:37,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:37,494 INFO L85 PathProgramCache]: Analyzing trace with hash 889510733, now seen corresponding path program 1 times [2022-12-13 13:57:37,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:37,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909798327] [2022-12-13 13:57:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:37,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:37,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:37,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:37,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909798327] [2022-12-13 13:57:37,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909798327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:37,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:37,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:57:37,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186173139] [2022-12-13 13:57:37,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:37,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:57:37,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:37,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:57:37,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,700 INFO L87 Difference]: Start difference. First operand has 42 states, 29 states have (on average 1.7241379310344827) internal successors, (50), 41 states have internal predecessors, (50), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-13 13:57:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:37,738 INFO L93 Difference]: Finished difference Result 68 states and 81 transitions. [2022-12-13 13:57:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:57:37,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2022-12-13 13:57:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:37,746 INFO L225 Difference]: With dead ends: 68 [2022-12-13 13:57:37,746 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 13:57:37,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,751 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 39 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:37,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 37 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 13:57:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-12-13 13:57:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 31 states have internal predecessors, (35), 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) [2022-12-13 13:57:37,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2022-12-13 13:57:37,778 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 6 [2022-12-13 13:57:37,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:37,778 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2022-12-13 13:57:37,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-13 13:57:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2022-12-13 13:57:37,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 13:57:37,779 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:37,779 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:37,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:57:37,780 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:37,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:37,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028999, now seen corresponding path program 1 times [2022-12-13 13:57:37,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:37,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265576618] [2022-12-13 13:57:37,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:37,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:37,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:37,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:37,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265576618] [2022-12-13 13:57:37,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265576618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:37,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:37,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:57:37,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977140247] [2022-12-13 13:57:37,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:37,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:57:37,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:37,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:57:37,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,840 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-13 13:57:37,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:37,873 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2022-12-13 13:57:37,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:57:37,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-12-13 13:57:37,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:37,875 INFO L225 Difference]: With dead ends: 61 [2022-12-13 13:57:37,875 INFO L226 Difference]: Without dead ends: 59 [2022-12-13 13:57:37,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,877 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 26 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:37,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 51 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:37,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-13 13:57:37,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2022-12-13 13:57:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.564102564102564) internal successors, (61), 48 states have internal predecessors, (61), 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) [2022-12-13 13:57:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2022-12-13 13:57:37,885 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 7 [2022-12-13 13:57:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:37,886 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2022-12-13 13:57:37,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-13 13:57:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2022-12-13 13:57:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-13 13:57:37,886 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:37,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:37,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:57:37,887 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:37,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:37,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1806876041, now seen corresponding path program 1 times [2022-12-13 13:57:37,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:37,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787376997] [2022-12-13 13:57:37,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:37,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:37,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:37,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:37,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:37,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787376997] [2022-12-13 13:57:37,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787376997] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:37,937 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:37,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:57:37,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867795602] [2022-12-13 13:57:37,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:37,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:57:37,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:37,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:57:37,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,938 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-13 13:57:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:37,952 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2022-12-13 13:57:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:57:37,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2022-12-13 13:57:37,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:37,953 INFO L225 Difference]: With dead ends: 49 [2022-12-13 13:57:37,953 INFO L226 Difference]: Without dead ends: 47 [2022-12-13 13:57:37,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,954 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:37,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 25 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-12-13 13:57:37,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 30. [2022-12-13 13:57:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.5) internal successors, (33), 29 states have internal predecessors, (33), 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) [2022-12-13 13:57:37,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2022-12-13 13:57:37,957 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 7 [2022-12-13 13:57:37,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:37,957 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2022-12-13 13:57:37,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-13 13:57:37,958 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2022-12-13 13:57:37,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:57:37,958 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:37,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:37,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:57:37,958 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:37,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:37,959 INFO L85 PathProgramCache]: Analyzing trace with hash 628418293, now seen corresponding path program 1 times [2022-12-13 13:57:37,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:37,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290665798] [2022-12-13 13:57:37,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:37,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:37,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:37,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290665798] [2022-12-13 13:57:37,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290665798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:37,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:37,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:57:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976352741] [2022-12-13 13:57:37,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:37,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:57:37,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:37,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:57:37,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:37,998 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-13 13:57:38,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,013 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-12-13 13:57:38,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:57:38,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2022-12-13 13:57:38,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,014 INFO L225 Difference]: With dead ends: 30 [2022-12-13 13:57:38,014 INFO L226 Difference]: Without dead ends: 28 [2022-12-13 13:57:38,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:38,016 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-13 13:57:38,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-13 13:57:38,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 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) [2022-12-13 13:57:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-12-13 13:57:38,019 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 10 [2022-12-13 13:57:38,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,020 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-12-13 13:57:38,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-12-13 13:57:38,020 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-12-13 13:57:38,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:57:38,020 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:57:38,021 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,021 INFO L85 PathProgramCache]: Analyzing trace with hash 628419956, now seen corresponding path program 1 times [2022-12-13 13:57:38,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698790875] [2022-12-13 13:57:38,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698790875] [2022-12-13 13:57:38,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698790875] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:38,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:57:38,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112711844] [2022-12-13 13:57:38,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:57:38,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:57:38,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:57:38,086 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-13 13:57:38,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,113 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2022-12-13 13:57:38,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:57:38,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2022-12-13 13:57:38,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,114 INFO L225 Difference]: With dead ends: 71 [2022-12-13 13:57:38,114 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 13:57:38,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:57:38,116 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 33 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 13:57:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 33. [2022-12-13 13:57:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 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) [2022-12-13 13:57:38,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-12-13 13:57:38,121 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 10 [2022-12-13 13:57:38,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,122 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-12-13 13:57:38,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-13 13:57:38,122 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-12-13 13:57:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:57:38,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:57:38,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash -180926670, now seen corresponding path program 1 times [2022-12-13 13:57:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165879239] [2022-12-13 13:57:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165879239] [2022-12-13 13:57:38,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165879239] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:38,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:57:38,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208631467] [2022-12-13 13:57:38,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:57:38,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:57:38,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:57:38,191 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-13 13:57:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,220 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2022-12-13 13:57:38,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:57:38,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2022-12-13 13:57:38,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,221 INFO L225 Difference]: With dead ends: 56 [2022-12-13 13:57:38,221 INFO L226 Difference]: Without dead ends: 54 [2022-12-13 13:57:38,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:57:38,222 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 19 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 74 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-13 13:57:38,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 39. [2022-12-13 13:57:38,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 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) [2022-12-13 13:57:38,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-12-13 13:57:38,229 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 10 [2022-12-13 13:57:38,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,229 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-12-13 13:57:38,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-12-13 13:57:38,230 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-12-13 13:57:38,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:57:38,230 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:57:38,231 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1993869323, now seen corresponding path program 1 times [2022-12-13 13:57:38,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203784465] [2022-12-13 13:57:38,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203784465] [2022-12-13 13:57:38,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203784465] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:38,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:57:38,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91332809] [2022-12-13 13:57:38,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:57:38,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:57:38,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:38,267 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-13 13:57:38,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,290 INFO L93 Difference]: Finished difference Result 73 states and 80 transitions. [2022-12-13 13:57:38,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:57:38,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-12-13 13:57:38,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,291 INFO L225 Difference]: With dead ends: 73 [2022-12-13 13:57:38,292 INFO L226 Difference]: Without dead ends: 67 [2022-12-13 13:57:38,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:38,292 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 45 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-12-13 13:57:38,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 63. [2022-12-13 13:57:38,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 57 states have (on average 1.2982456140350878) internal successors, (74), 62 states have internal predecessors, (74), 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) [2022-12-13 13:57:38,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2022-12-13 13:57:38,298 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 11 [2022-12-13 13:57:38,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,299 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2022-12-13 13:57:38,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-13 13:57:38,299 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2022-12-13 13:57:38,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 13:57:38,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:57:38,300 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1491751347, now seen corresponding path program 1 times [2022-12-13 13:57:38,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624845017] [2022-12-13 13:57:38,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624845017] [2022-12-13 13:57:38,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624845017] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:38,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:57:38,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784746638] [2022-12-13 13:57:38,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:57:38,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:57:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:38,331 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-13 13:57:38,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,345 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2022-12-13 13:57:38,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:57:38,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) Word has length 11 [2022-12-13 13:57:38,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,346 INFO L225 Difference]: With dead ends: 63 [2022-12-13 13:57:38,346 INFO L226 Difference]: Without dead ends: 57 [2022-12-13 13:57:38,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:57:38,347 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 22 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 [2022-12-13 13:57:38,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 22 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-13 13:57:38,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 33. [2022-12-13 13:57:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 32 states have internal predecessors, (38), 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) [2022-12-13 13:57:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-12-13 13:57:38,353 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-12-13 13:57:38,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,353 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-12-13 13:57:38,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-12-13 13:57:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-13 13:57:38,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 13:57:38,354 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:57:38,354 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,355 INFO L85 PathProgramCache]: Analyzing trace with hash 36780700, now seen corresponding path program 1 times [2022-12-13 13:57:38,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966259619] [2022-12-13 13:57:38,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966259619] [2022-12-13 13:57:38,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966259619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:38,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:57:38,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516983931] [2022-12-13 13:57:38,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:57:38,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:57:38,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:57:38,404 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-12-13 13:57:38,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,421 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2022-12-13 13:57:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:57:38,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2022-12-13 13:57:38,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,422 INFO L225 Difference]: With dead ends: 64 [2022-12-13 13:57:38,422 INFO L226 Difference]: Without dead ends: 48 [2022-12-13 13:57:38,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:57:38,423 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 49 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-12-13 13:57:38,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 46. [2022-12-13 13:57:38,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 states have internal predecessors, (52), 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) [2022-12-13 13:57:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-12-13 13:57:38,430 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 14 [2022-12-13 13:57:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,430 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-12-13 13:57:38,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-12-13 13:57:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-12-13 13:57:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 13:57:38,431 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:57:38,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash 737845278, now seen corresponding path program 1 times [2022-12-13 13:57:38,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797005447] [2022-12-13 13:57:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797005447] [2022-12-13 13:57:38,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797005447] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:57:38,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:57:38,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629397840] [2022-12-13 13:57:38,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:57:38,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:57:38,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:57:38,494 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-12-13 13:57:38,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,516 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2022-12-13 13:57:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:57:38,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) Word has length 14 [2022-12-13 13:57:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,517 INFO L225 Difference]: With dead ends: 54 [2022-12-13 13:57:38,517 INFO L226 Difference]: Without dead ends: 52 [2022-12-13 13:57:38,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:57:38,518 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 59 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-13 13:57:38,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-13 13:57:38,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 48 states have (on average 1.2083333333333333) internal successors, (58), 51 states have internal predecessors, (58), 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) [2022-12-13 13:57:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2022-12-13 13:57:38,526 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 14 [2022-12-13 13:57:38,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,527 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2022-12-13 13:57:38,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-12-13 13:57:38,527 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2022-12-13 13:57:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 13:57:38,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,528 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:57:38,529 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1917321044, now seen corresponding path program 1 times [2022-12-13 13:57:38,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452105101] [2022-12-13 13:57:38,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,596 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:38,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452105101] [2022-12-13 13:57:38,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452105101] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:57:38,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234557260] [2022-12-13 13:57:38,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:38,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:38,598 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:57:38,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:57:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:38,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:57:38,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:57:38,717 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:38,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:57:38,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234557260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:38,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:57:38,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 13:57:38,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801837324] [2022-12-13 13:57:38,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:38,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:57:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:38,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:57:38,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:57:38,720 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-13 13:57:38,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:38,765 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-12-13 13:57:38,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:57:38,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) Word has length 16 [2022-12-13 13:57:38,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:38,766 INFO L225 Difference]: With dead ends: 67 [2022-12-13 13:57:38,767 INFO L226 Difference]: Without dead ends: 66 [2022-12-13 13:57:38,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:57:38,768 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 27 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:38,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 106 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:38,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-13 13:57:38,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 51. [2022-12-13 13:57:38,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 50 states have internal predecessors, (56), 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) [2022-12-13 13:57:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-12-13 13:57:38,776 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 16 [2022-12-13 13:57:38,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:38,776 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-12-13 13:57:38,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 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) [2022-12-13 13:57:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-12-13 13:57:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 13:57:38,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:38,777 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:38,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:57:38,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:38,980 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:38,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:38,981 INFO L85 PathProgramCache]: Analyzing trace with hash 692589843, now seen corresponding path program 1 times [2022-12-13 13:57:38,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:38,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951367966] [2022-12-13 13:57:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:38,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:39,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:39,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951367966] [2022-12-13 13:57:39,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951367966] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:57:39,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970182589] [2022-12-13 13:57:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:39,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:39,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:57:39,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:57:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:39,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:57:39,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:57:39,225 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:39,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:57:39,267 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:39,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970182589] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:57:39,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:57:39,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 13:57:39,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676659779] [2022-12-13 13:57:39,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:57:39,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:57:39,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:39,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:57:39,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:57:39,269 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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) [2022-12-13 13:57:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:39,338 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2022-12-13 13:57:39,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:57:39,338 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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) Word has length 17 [2022-12-13 13:57:39,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:39,339 INFO L225 Difference]: With dead ends: 148 [2022-12-13 13:57:39,339 INFO L226 Difference]: Without dead ends: 147 [2022-12-13 13:57:39,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:57:39,340 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 48 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 133 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 [2022-12-13 13:57:39,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 133 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:39,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-12-13 13:57:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 87. [2022-12-13 13:57:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 84 states have (on average 1.130952380952381) internal successors, (95), 86 states have internal predecessors, (95), 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) [2022-12-13 13:57:39,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2022-12-13 13:57:39,351 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 17 [2022-12-13 13:57:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:39,352 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2022-12-13 13:57:39,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 12 states have internal predecessors, (37), 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) [2022-12-13 13:57:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2022-12-13 13:57:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 13:57:39,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:39,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:39,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:57:39,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:39,554 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:39,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:39,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1973612760, now seen corresponding path program 1 times [2022-12-13 13:57:39,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:39,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278256135] [2022-12-13 13:57:39,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:39,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:39,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:39,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278256135] [2022-12-13 13:57:39,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278256135] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:57:39,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392610374] [2022-12-13 13:57:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:39,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:39,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:57:39,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:57:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:39,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:57:39,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:57:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:39,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:57:39,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392610374] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:57:39,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:57:39,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 13:57:39,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841364878] [2022-12-13 13:57:39,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:57:39,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:57:39,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:39,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:57:39,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:57:39,788 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-12-13 13:57:39,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:39,820 INFO L93 Difference]: Finished difference Result 87 states and 95 transitions. [2022-12-13 13:57:39,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:57:39,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) Word has length 20 [2022-12-13 13:57:39,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:39,822 INFO L225 Difference]: With dead ends: 87 [2022-12-13 13:57:39,823 INFO L226 Difference]: Without dead ends: 86 [2022-12-13 13:57:39,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:57:39,824 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:39,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 88 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:39,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-13 13:57:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-12-13 13:57:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 84 states have (on average 1.119047619047619) internal successors, (94), 85 states have internal predecessors, (94), 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) [2022-12-13 13:57:39,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-12-13 13:57:39,834 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 20 [2022-12-13 13:57:39,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:39,835 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-12-13 13:57:39,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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) [2022-12-13 13:57:39,835 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-12-13 13:57:39,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 13:57:39,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:39,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:39,842 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:57:40,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 13:57:40,037 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:40,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:40,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1052453501, now seen corresponding path program 1 times [2022-12-13 13:57:40,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:40,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358563277] [2022-12-13 13:57:40,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:40,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:40,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:40,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:40,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358563277] [2022-12-13 13:57:40,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358563277] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:57:40,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902939920] [2022-12-13 13:57:40,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:40,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:40,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:40,099 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:57:40,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:57:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:40,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:57:40,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:57:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:40,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:57:40,217 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:40,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902939920] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:57:40,218 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:57:40,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 13:57:40,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115102331] [2022-12-13 13:57:40,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:57:40,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:57:40,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:57:40,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:57:40,219 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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) [2022-12-13 13:57:40,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:40,277 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2022-12-13 13:57:40,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:57:40,277 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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) Word has length 21 [2022-12-13 13:57:40,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:40,278 INFO L225 Difference]: With dead ends: 105 [2022-12-13 13:57:40,278 INFO L226 Difference]: Without dead ends: 104 [2022-12-13 13:57:40,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:57:40,279 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 12 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:40,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 107 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:40,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-13 13:57:40,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-12-13 13:57:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 102 states have (on average 1.0980392156862746) internal successors, (112), 103 states have internal predecessors, (112), 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) [2022-12-13 13:57:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2022-12-13 13:57:40,289 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 21 [2022-12-13 13:57:40,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:40,289 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2022-12-13 13:57:40,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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) [2022-12-13 13:57:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2022-12-13 13:57:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 13:57:40,290 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:40,290 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:40,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:57:40,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 13:57:40,491 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:40,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:40,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1274375013, now seen corresponding path program 2 times [2022-12-13 13:57:40,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:40,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778270489] [2022-12-13 13:57:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:40,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:40,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:40,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778270489] [2022-12-13 13:57:40,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778270489] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:57:40,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002097841] [2022-12-13 13:57:40,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:57:40,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:40,634 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:57:40,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:57:40,683 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:57:40,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:57:40,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:57:40,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:57:40,743 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 13:57:40,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:57:40,802 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 13:57:40,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002097841] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:57:40,803 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:57:40,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-12-13 13:57:40,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10292391] [2022-12-13 13:57:40,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:57:40,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 13:57:40,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:40,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 13:57:40,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:57:40,804 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 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) [2022-12-13 13:57:40,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:40,998 INFO L93 Difference]: Finished difference Result 314 states and 326 transitions. [2022-12-13 13:57:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 13:57:40,999 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 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) Word has length 35 [2022-12-13 13:57:40,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:41,000 INFO L225 Difference]: With dead ends: 314 [2022-12-13 13:57:41,000 INFO L226 Difference]: Without dead ends: 273 [2022-12-13 13:57:41,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-12-13 13:57:41,001 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 200 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:41,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 104 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:57:41,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-12-13 13:57:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 48. [2022-12-13 13:57:41,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0638297872340425) internal successors, (50), 47 states have internal predecessors, (50), 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) [2022-12-13 13:57:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2022-12-13 13:57:41,007 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 35 [2022-12-13 13:57:41,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:41,007 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2022-12-13 13:57:41,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 18 states have internal predecessors, (63), 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) [2022-12-13 13:57:41,007 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2022-12-13 13:57:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 13:57:41,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:57:41,008 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:41,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:57:41,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 13:57:41,209 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 13:57:41,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:57:41,210 INFO L85 PathProgramCache]: Analyzing trace with hash -719514865, now seen corresponding path program 2 times [2022-12-13 13:57:41,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:57:41,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043001647] [2022-12-13 13:57:41,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:57:41,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:57:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:57:41,441 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:57:41,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:57:41,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043001647] [2022-12-13 13:57:41,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043001647] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:57:41,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877099581] [2022-12-13 13:57:41,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:57:41,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:41,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:57:41,443 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:57:41,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:57:41,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:57:41,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:57:41,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:57:41,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:57:41,552 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 13:57:41,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:57:41,615 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-12-13 13:57:41,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877099581] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:57:41,615 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:57:41,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-12-13 13:57:41,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330099035] [2022-12-13 13:57:41,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:57:41,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 13:57:41,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:57:41,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 13:57:41,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-13 13:57:41,617 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 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) [2022-12-13 13:57:41,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:57:41,765 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-12-13 13:57:41,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 13:57:41,765 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 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) Word has length 39 [2022-12-13 13:57:41,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:57:41,766 INFO L225 Difference]: With dead ends: 57 [2022-12-13 13:57:41,766 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 13:57:41,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-12-13 13:57:41,767 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 35 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:57:41,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 45 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:57:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 13:57:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 13:57:41,767 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) [2022-12-13 13:57:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:57:41,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-12-13 13:57:41,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:57:41,768 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:57:41,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.411764705882353) internal successors, (75), 18 states have internal predecessors, (75), 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) [2022-12-13 13:57:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:57:41,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-12-13 13:57:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-12-13 13:57:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-12-13 13:57:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-12-13 13:57:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-12-13 13:57:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-12-13 13:57:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-12-13 13:57:41,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 13:57:41,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:57:41,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 13:57:47,410 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 114 DAG size of output: 113 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 13:57:47,753 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,753 INFO L899 garLoopResultBuilder]: For program point L531-1(lines 531 533) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 548) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 525 550) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point L548-1(line 548) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L895 garLoopResultBuilder]: At program point cstrcmp_returnLabel#1(lines 514 524) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 530) no Hoare annotation was computed. [2022-12-13 13:57:47,754 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 525 550) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 547) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L537-1(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L537-2(lines 537 540) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L537-4(lines 537 540) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L537-5(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L537-6(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L895 garLoopResultBuilder]: At program point L537-7(lines 537 540) the Hoare annotation is: (let ((.cse0 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse1 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse2 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse3 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 .cse1 .cse2 .cse3) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 2147483647) .cse0 .cse1 .cse2 .cse3))) [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L537-8(lines 537 540) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 547) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 13:57:47,755 INFO L899 garLoopResultBuilder]: For program point L517-1(line 517) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L517-3(lines 517 520) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L895 garLoopResultBuilder]: At program point L517-5(lines 517 520) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~length1~0#1|) [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L517-6(lines 517 520) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 537) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L542-1(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L542-2(lines 542 545) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L542-4(lines 542 545) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L542-5(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L542-6(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L895 garLoopResultBuilder]: At program point L542-7(lines 542 545) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~i~1#1| 0)) (.cse5 (< |ULTIMATE.start_main_~i~0#1| 2147483647)) (.cse1 (<= 1 |ULTIMATE.start_main_~length1~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~length2~0#1|)) (.cse6 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse3 (<= |ULTIMATE.start_main_~length1~0#1| 2147483647)) (.cse4 (<= |ULTIMATE.start_main_~length2~0#1| 2147483647))) (or (and .cse0 (<= |ULTIMATE.start_main_~length2~0#1| 1) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse5 (< |ULTIMATE.start_main_~i~1#1| 2147483647) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|) .cse4))) [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point L542-8(lines 542 545) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 548) no Hoare annotation was computed. [2022-12-13 13:57:47,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 542) no Hoare annotation was computed. [2022-12-13 13:57:47,757 INFO L899 garLoopResultBuilder]: For program point L547(line 547) no Hoare annotation was computed. [2022-12-13 13:57:47,759 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:57:47,761 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:57:47,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:57:47 BoogieIcfgContainer [2022-12-13 13:57:47,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:57:47,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:57:47,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:57:47,774 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:57:47,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:57:37" (3/4) ... [2022-12-13 13:57:47,778 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:57:47,788 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 13:57:47,788 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 13:57:47,788 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:57:47,788 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:57:47,826 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:57:47,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:57:47,826 INFO L158 Benchmark]: Toolchain (without parser) took 11208.84ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.9MB in the beginning and 185.8MB in the end (delta: -77.9MB). Peak memory consumption was 210.4MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,827 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:57:47,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.68ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 91.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.40ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,827 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 88.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,828 INFO L158 Benchmark]: RCFGBuilder took 311.28ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 74.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,828 INFO L158 Benchmark]: TraceAbstraction took 10386.80ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 73.4MB in the beginning and 190.1MB in the end (delta: -116.7MB). Peak memory consumption was 220.9MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,828 INFO L158 Benchmark]: Witness Printer took 51.57ms. Allocated memory is still 427.8MB. Free memory was 189.0MB in the beginning and 185.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:57:47,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 113.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.68ms. Allocated memory is still 142.6MB. Free memory was 107.4MB in the beginning and 91.3MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.40ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 88.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.28ms. Allocated memory is still 142.6MB. Free memory was 88.1MB in the beginning and 74.4MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10386.80ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 73.4MB in the beginning and 190.1MB in the end (delta: -116.7MB). Peak memory consumption was 220.9MB. Max. memory is 16.1GB. * Witness Printer took 51.57ms. Allocated memory is still 427.8MB. Free memory was 189.0MB in the beginning and 185.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 542]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 542]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 542]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 542]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 547]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 547]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 548]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 536 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 536 mSDsluCounter, 1019 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 657 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 443 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 362 mSDtfsCounter, 443 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 360 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=14, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 387 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 26 NumberOfFragments, 112 HoareAnnotationTreeSize, 5 FomulaSimplifications, 13443 FormulaSimplificationTreeSizeReduction, 5.5s HoareSimplificationTime, 5 FomulaSimplificationsInter, 101371 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 396 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 1252 SizeOfPredicates, 14 NumberOfNonLiveVariables, 457 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 202/416 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold - InvariantResult [Line: 514]: Loop Invariant Derived loop invariant: 1 <= length1 - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 <= length1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: ((((((i == 0 && length2 <= 1) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || ((((((i == 0 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && length2 <= 2147483647)) || (((((((i < 2147483647 && i < 2147483647) && 1 <= length1) && 1 <= length2) && 0 <= i) && length1 <= 2147483647) && 1 <= i) && length2 <= 2147483647) - InvariantResult [Line: 517]: Loop Invariant Derived loop invariant: 1 <= length1 - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: ((((i == 0 && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) || (((((1 <= i && i < 2147483647) && 1 <= length1) && 1 <= length2) && length1 <= 2147483647) && length2 <= 2147483647) RESULT: Ultimate proved your program to be correct! [2022-12-13 13:57:47,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc67b445-39f1-4d6f-8427-73bb54eeddf2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE