./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Primes.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Primes.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:05:16,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:05:16,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:05:16,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:05:16,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:05:16,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:05:16,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:05:16,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:05:16,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:05:16,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:05:16,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:05:16,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:05:16,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:05:16,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:05:16,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:05:16,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:05:16,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:05:16,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:05:16,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:05:16,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:05:16,333 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:05:16,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:05:16,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:05:16,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:05:16,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:05:16,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:05:16,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:05:16,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:05:16,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:05:16,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:05:16,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:05:16,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:05:16,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:05:16,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:05:16,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:05:16,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:05:16,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:05:16,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:05:16,364 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:05:16,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:05:16,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:05:16,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:05:16,421 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:05:16,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:05:16,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:05:16,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:05:16,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:05:16,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:05:16,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:05:16,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:05:16,430 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:05:16,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:05:16,431 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:05:16,431 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:05:16,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:05:16,432 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:05:16,432 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:05:16,432 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:05:16,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:05:16,433 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:05:16,433 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:05:16,433 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:05:16,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:05:16,434 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:05:16,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:05:16,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:05:16,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:05:16,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:05:16,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:05:16,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:05:16,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:05:16,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:05:16,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:05:16,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:05:16,438 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:05:16,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:05:16,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:05:16,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16beca065b3aeb336c54dcf96f3abbe61553e7d28b28c1a40f525ad89a5da56e [2022-11-18 20:05:16,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:05:16,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:05:16,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:05:16,743 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:05:16,744 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:05:16,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive/Primes.c [2022-11-18 20:05:16,816 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/data/9b9b44abc/6e588f8b977f41b4a6b56b34e3ea9d0b/FLAG79a4835ce [2022-11-18 20:05:17,250 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:05:17,250 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/sv-benchmarks/c/recursive/Primes.c [2022-11-18 20:05:17,257 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/data/9b9b44abc/6e588f8b977f41b4a6b56b34e3ea9d0b/FLAG79a4835ce [2022-11-18 20:05:17,629 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/data/9b9b44abc/6e588f8b977f41b4a6b56b34e3ea9d0b [2022-11-18 20:05:17,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:05:17,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:05:17,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:05:17,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:05:17,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:05:17,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f171d09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17, skipping insertion in model container [2022-11-18 20:05:17,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:05:17,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:05:17,838 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/sv-benchmarks/c/recursive/Primes.c[2190,2203] [2022-11-18 20:05:17,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:05:17,848 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:05:17,870 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/sv-benchmarks/c/recursive/Primes.c[2190,2203] [2022-11-18 20:05:17,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:05:17,882 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:05:17,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17 WrapperNode [2022-11-18 20:05:17,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:05:17,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:05:17,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:05:17,884 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:05:17,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,915 INFO L138 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2022-11-18 20:05:17,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:05:17,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:05:17,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:05:17,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:05:17,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,939 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,951 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:05:17,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:05:17,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:05:17,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:05:17,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (1/1) ... [2022-11-18 20:05:17,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:05:17,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:18,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:05:18,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:05:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure multiple_of [2022-11-18 20:05:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure multiple_of [2022-11-18 20:05:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:05:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2022-11-18 20:05:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2022-11-18 20:05:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure is_prime_ [2022-11-18 20:05:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_prime_ [2022-11-18 20:05:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:05:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:05:18,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:05:18,117 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:05:18,119 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:05:18,516 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:05:18,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:05:18,525 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:05:18,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:05:18 BoogieIcfgContainer [2022-11-18 20:05:18,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:05:18,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:05:18,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:05:18,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:05:18,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:05:17" (1/3) ... [2022-11-18 20:05:18,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d7e540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:05:18, skipping insertion in model container [2022-11-18 20:05:18,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:05:17" (2/3) ... [2022-11-18 20:05:18,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22d7e540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:05:18, skipping insertion in model container [2022-11-18 20:05:18,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:05:18" (3/3) ... [2022-11-18 20:05:18,537 INFO L112 eAbstractionObserver]: Analyzing ICFG Primes.c [2022-11-18 20:05:18,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:05:18,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-18 20:05:18,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:05:18,621 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;@4f82b36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:05:18,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-18 20:05:18,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 70 states have internal predecessors, (87), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 20:05:18,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 20:05:18,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:18,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 20:05:18,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:18,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:18,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2957412, now seen corresponding path program 1 times [2022-11-18 20:05:18,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:18,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779779942] [2022-11-18 20:05:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:18,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:18,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:18,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779779942] [2022-11-18 20:05:18,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779779942] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:18,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:18,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:05:18,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33384874] [2022-11-18 20:05:18,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:18,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:05:18,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:18,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:05:18,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:05:18,987 INFO L87 Difference]: Start difference. First operand has 83 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 70 states have internal predecessors, (87), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:19,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:19,068 INFO L93 Difference]: Finished difference Result 89 states and 109 transitions. [2022-11-18 20:05:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:05:19,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-18 20:05:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:19,091 INFO L225 Difference]: With dead ends: 89 [2022-11-18 20:05:19,091 INFO L226 Difference]: Without dead ends: 76 [2022-11-18 20:05:19,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:05:19,102 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 16 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:19,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 187 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:19,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-18 20:05:19,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-18 20:05:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 20:05:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2022-11-18 20:05:19,175 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 4 [2022-11-18 20:05:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:19,176 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2022-11-18 20:05:19,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2022-11-18 20:05:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:05:19,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:19,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:05:19,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:05:19,178 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:19,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:19,181 INFO L85 PathProgramCache]: Analyzing trace with hash 91679879, now seen corresponding path program 1 times [2022-11-18 20:05:19,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:19,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222390099] [2022-11-18 20:05:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:19,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:19,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:19,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:19,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222390099] [2022-11-18 20:05:19,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222390099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:19,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:19,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:05:19,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665102236] [2022-11-18 20:05:19,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:19,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:05:19,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:19,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:05:19,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:05:19,292 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:19,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:19,323 INFO L93 Difference]: Finished difference Result 76 states and 93 transitions. [2022-11-18 20:05:19,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:05:19,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-18 20:05:19,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:19,328 INFO L225 Difference]: With dead ends: 76 [2022-11-18 20:05:19,328 INFO L226 Difference]: Without dead ends: 75 [2022-11-18 20:05:19,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:05:19,330 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 6 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:19,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 172 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:19,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-18 20:05:19,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-18 20:05:19,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 49 states have (on average 1.530612244897959) internal successors, (75), 63 states have internal predecessors, (75), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 20:05:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 92 transitions. [2022-11-18 20:05:19,348 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 92 transitions. Word has length 5 [2022-11-18 20:05:19,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:19,349 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 92 transitions. [2022-11-18 20:05:19,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 92 transitions. [2022-11-18 20:05:19,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 20:05:19,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:19,355 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:19,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:05:19,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:19,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:19,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1790314255, now seen corresponding path program 1 times [2022-11-18 20:05:19,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:19,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425207198] [2022-11-18 20:05:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:19,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:19,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425207198] [2022-11-18 20:05:19,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425207198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:19,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:19,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:05:19,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358268486] [2022-11-18 20:05:19,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:19,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:19,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:19,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:19,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:19,554 INFO L87 Difference]: Start difference. First operand 75 states and 92 transitions. Second operand has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:19,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:19,711 INFO L93 Difference]: Finished difference Result 139 states and 178 transitions. [2022-11-18 20:05:19,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:19,712 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 20:05:19,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:19,715 INFO L225 Difference]: With dead ends: 139 [2022-11-18 20:05:19,716 INFO L226 Difference]: Without dead ends: 70 [2022-11-18 20:05:19,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:19,720 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 43 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:19,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 241 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:19,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-18 20:05:19,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-11-18 20:05:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-18 20:05:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 82 transitions. [2022-11-18 20:05:19,746 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 82 transitions. Word has length 15 [2022-11-18 20:05:19,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:19,747 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 82 transitions. [2022-11-18 20:05:19,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 82 transitions. [2022-11-18 20:05:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 20:05:19,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:19,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:19,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:05:19,750 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:19,751 INFO L85 PathProgramCache]: Analyzing trace with hash -334825923, now seen corresponding path program 1 times [2022-11-18 20:05:19,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:19,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179715234] [2022-11-18 20:05:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:19,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:19,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:19,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179715234] [2022-11-18 20:05:19,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179715234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:19,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:19,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:05:19,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85220559] [2022-11-18 20:05:19,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:19,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:19,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:19,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:19,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:19,892 INFO L87 Difference]: Start difference. First operand 68 states and 82 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:20,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:20,017 INFO L93 Difference]: Finished difference Result 145 states and 178 transitions. [2022-11-18 20:05:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:05:20,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-18 20:05:20,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:20,021 INFO L225 Difference]: With dead ends: 145 [2022-11-18 20:05:20,021 INFO L226 Difference]: Without dead ends: 83 [2022-11-18 20:05:20,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:20,024 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 31 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:20,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 267 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:20,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-18 20:05:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2022-11-18 20:05:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 55 states have (on average 1.4181818181818182) internal successors, (78), 66 states have internal predecessors, (78), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 20:05:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 95 transitions. [2022-11-18 20:05:20,037 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 95 transitions. Word has length 16 [2022-11-18 20:05:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:20,037 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 95 transitions. [2022-11-18 20:05:20,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 95 transitions. [2022-11-18 20:05:20,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 20:05:20,039 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:20,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:20,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:05:20,040 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:20,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:20,040 INFO L85 PathProgramCache]: Analyzing trace with hash 355054241, now seen corresponding path program 1 times [2022-11-18 20:05:20,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:20,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767326597] [2022-11-18 20:05:20,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:20,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:20,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:20,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767326597] [2022-11-18 20:05:20,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767326597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:20,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:20,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:05:20,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497205515] [2022-11-18 20:05:20,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:20,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:20,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:20,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:20,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:20,188 INFO L87 Difference]: Start difference. First operand 79 states and 95 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:20,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:20,356 INFO L93 Difference]: Finished difference Result 107 states and 129 transitions. [2022-11-18 20:05:20,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-18 20:05:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:20,359 INFO L225 Difference]: With dead ends: 107 [2022-11-18 20:05:20,359 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 20:05:20,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:05:20,365 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:20,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 310 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 20:05:20,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-11-18 20:05:20,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.4) internal successors, (105), 86 states have internal predecessors, (105), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 20:05:20,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2022-11-18 20:05:20,377 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 18 [2022-11-18 20:05:20,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:20,378 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2022-11-18 20:05:20,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:20,378 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2022-11-18 20:05:20,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:05:20,379 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:20,379 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:20,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:05:20,380 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:20,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:20,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1880405543, now seen corresponding path program 1 times [2022-11-18 20:05:20,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:20,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015920615] [2022-11-18 20:05:20,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:20,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:20,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:20,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:20,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:20,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:20,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015920615] [2022-11-18 20:05:20,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015920615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:20,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:20,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:05:20,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895846856] [2022-11-18 20:05:20,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:20,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:05:20,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:20,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:05:20,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:05:20,510 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:20,566 INFO L93 Difference]: Finished difference Result 136 states and 165 transitions. [2022-11-18 20:05:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-18 20:05:20,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:20,568 INFO L225 Difference]: With dead ends: 136 [2022-11-18 20:05:20,568 INFO L226 Difference]: Without dead ends: 106 [2022-11-18 20:05:20,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:05:20,570 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 4 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:20,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 463 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-11-18 20:05:20,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2022-11-18 20:05:20,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.3733333333333333) internal successors, (103), 86 states have internal predecessors, (103), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 20:05:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-11-18 20:05:20,581 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 19 [2022-11-18 20:05:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:20,582 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-11-18 20:05:20,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 6 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:20,582 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2022-11-18 20:05:20,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 20:05:20,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:20,583 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:20,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:05:20,584 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:20,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:20,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1878220355, now seen corresponding path program 1 times [2022-11-18 20:05:20,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:20,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494317648] [2022-11-18 20:05:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:20,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:20,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:20,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494317648] [2022-11-18 20:05:20,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494317648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:20,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:20,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:05:20,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905829741] [2022-11-18 20:05:20,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:20,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:20,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:20,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:20,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:20,661 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:20,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:20,840 INFO L93 Difference]: Finished difference Result 106 states and 126 transitions. [2022-11-18 20:05:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:05:20,841 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-18 20:05:20,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:20,843 INFO L225 Difference]: With dead ends: 106 [2022-11-18 20:05:20,843 INFO L226 Difference]: Without dead ends: 105 [2022-11-18 20:05:20,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:05:20,847 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 42 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:20,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 279 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:20,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-18 20:05:20,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 104. [2022-11-18 20:05:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 86 states have internal predecessors, (101), 12 states have call successors, (12), 6 states have call predecessors, (12), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 20:05:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2022-11-18 20:05:20,871 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 19 [2022-11-18 20:05:20,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:20,871 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2022-11-18 20:05:20,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:20,871 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2022-11-18 20:05:20,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 20:05:20,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:20,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:20,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:05:20,873 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:20,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:20,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1361525461, now seen corresponding path program 1 times [2022-11-18 20:05:20,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:20,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573029278] [2022-11-18 20:05:20,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:20,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:20,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:20,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:20,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:20,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573029278] [2022-11-18 20:05:20,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573029278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:20,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:20,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:05:20,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903950113] [2022-11-18 20:05:20,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:20,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:20,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:20,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:20,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:20,933 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:21,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:21,014 INFO L93 Difference]: Finished difference Result 143 states and 173 transitions. [2022-11-18 20:05:21,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:05:21,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-18 20:05:21,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:21,017 INFO L225 Difference]: With dead ends: 143 [2022-11-18 20:05:21,017 INFO L226 Difference]: Without dead ends: 119 [2022-11-18 20:05:21,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:21,020 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 28 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:21,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 287 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:21,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-18 20:05:21,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2022-11-18 20:05:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 94 states have internal predecessors, (112), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 20:05:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2022-11-18 20:05:21,041 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 20 [2022-11-18 20:05:21,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:21,042 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2022-11-18 20:05:21,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:21,042 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2022-11-18 20:05:21,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 20:05:21,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:21,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:21,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:05:21,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting multErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:21,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:21,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1538837383, now seen corresponding path program 1 times [2022-11-18 20:05:21,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:21,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974151189] [2022-11-18 20:05:21,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:21,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:21,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:21,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:21,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974151189] [2022-11-18 20:05:21,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974151189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:21,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:21,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:05:21,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076295288] [2022-11-18 20:05:21,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:21,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:21,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:21,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:21,115 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:21,195 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2022-11-18 20:05:21,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:05:21,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-18 20:05:21,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:21,198 INFO L225 Difference]: With dead ends: 137 [2022-11-18 20:05:21,198 INFO L226 Difference]: Without dead ends: 135 [2022-11-18 20:05:21,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:21,201 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 41 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:21,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 258 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-18 20:05:21,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2022-11-18 20:05:21,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 106 states have internal predecessors, (130), 15 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-18 20:05:21,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2022-11-18 20:05:21,213 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 22 [2022-11-18 20:05:21,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:21,215 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2022-11-18 20:05:21,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:21,215 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2022-11-18 20:05:21,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 20:05:21,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:21,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:21,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:05:21,220 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:21,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1613355843, now seen corresponding path program 1 times [2022-11-18 20:05:21,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:21,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777391389] [2022-11-18 20:05:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:21,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:21,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:21,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777391389] [2022-11-18 20:05:21,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777391389] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:21,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180186739] [2022-11-18 20:05:21,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:21,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:21,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:21,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:21,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:05:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:21,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:05:21,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:21,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:21,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180186739] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:21,981 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:21,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 23 [2022-11-18 20:05:21,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204483324] [2022-11-18 20:05:21,982 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:21,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:05:21,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:21,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:05:21,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:05:21,984 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:22,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:22,636 INFO L93 Difference]: Finished difference Result 276 states and 348 transitions. [2022-11-18 20:05:22,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-18 20:05:22,637 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 20:05:22,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:22,639 INFO L225 Difference]: With dead ends: 276 [2022-11-18 20:05:22,639 INFO L226 Difference]: Without dead ends: 167 [2022-11-18 20:05:22,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=200, Invalid=1132, Unknown=0, NotChecked=0, Total=1332 [2022-11-18 20:05:22,641 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 272 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:22,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 579 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:05:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-11-18 20:05:22,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 154. [2022-11-18 20:05:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 118 states have (on average 1.3135593220338984) internal successors, (155), 126 states have internal predecessors, (155), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-18 20:05:22,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 190 transitions. [2022-11-18 20:05:22,667 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 190 transitions. Word has length 24 [2022-11-18 20:05:22,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:22,668 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 190 transitions. [2022-11-18 20:05:22,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 15 states have internal predecessors, (59), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:22,668 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 190 transitions. [2022-11-18 20:05:22,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 20:05:22,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:22,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:22,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:05:22,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:05:22,876 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:22,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:22,877 INFO L85 PathProgramCache]: Analyzing trace with hash 48447777, now seen corresponding path program 1 times [2022-11-18 20:05:22,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:22,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841794083] [2022-11-18 20:05:22,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:22,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:22,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:22,971 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-18 20:05:22,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:22,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841794083] [2022-11-18 20:05:22,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841794083] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:22,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487501139] [2022-11-18 20:05:22,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:22,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:22,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:22,979 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:22,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:05:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:23,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 20:05:23,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:23,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:05:23,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487501139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:23,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:05:23,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 12 [2022-11-18 20:05:23,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084899629] [2022-11-18 20:05:23,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:23,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 20:05:23,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:23,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 20:05:23,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:23,216 INFO L87 Difference]: Start difference. First operand 154 states and 190 transitions. Second operand has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:23,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:23,466 INFO L93 Difference]: Finished difference Result 256 states and 316 transitions. [2022-11-18 20:05:23,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 20:05:23,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-18 20:05:23,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:23,470 INFO L225 Difference]: With dead ends: 256 [2022-11-18 20:05:23,470 INFO L226 Difference]: Without dead ends: 199 [2022-11-18 20:05:23,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:05:23,471 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 61 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:23,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 464 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-18 20:05:23,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2022-11-18 20:05:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 151 states have (on average 1.2847682119205297) internal successors, (194), 159 states have internal predecessors, (194), 23 states have call successors, (23), 13 states have call predecessors, (23), 12 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-18 20:05:23,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 239 transitions. [2022-11-18 20:05:23,494 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 239 transitions. Word has length 26 [2022-11-18 20:05:23,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:23,495 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 239 transitions. [2022-11-18 20:05:23,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 239 transitions. [2022-11-18 20:05:23,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-18 20:05:23,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:23,500 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:23,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-18 20:05:23,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-18 20:05:23,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:23,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2143137265, now seen corresponding path program 1 times [2022-11-18 20:05:23,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:23,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562699985] [2022-11-18 20:05:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:23,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:23,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:23,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:23,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:23,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:23,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562699985] [2022-11-18 20:05:23,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562699985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:23,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:23,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:05:23,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120708578] [2022-11-18 20:05:23,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:23,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:05:23,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:23,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:05:23,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:05:23,792 INFO L87 Difference]: Start difference. First operand 195 states and 239 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:23,873 INFO L93 Difference]: Finished difference Result 221 states and 274 transitions. [2022-11-18 20:05:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:05:23,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2022-11-18 20:05:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:23,875 INFO L225 Difference]: With dead ends: 221 [2022-11-18 20:05:23,875 INFO L226 Difference]: Without dead ends: 219 [2022-11-18 20:05:23,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:05:23,876 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 52 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:23,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 198 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-18 20:05:23,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 210. [2022-11-18 20:05:23,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 164 states have (on average 1.2804878048780488) internal successors, (210), 171 states have internal predecessors, (210), 25 states have call successors, (25), 14 states have call predecessors, (25), 13 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-11-18 20:05:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 259 transitions. [2022-11-18 20:05:23,890 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 259 transitions. Word has length 27 [2022-11-18 20:05:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:23,890 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 259 transitions. [2022-11-18 20:05:23,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 259 transitions. [2022-11-18 20:05:23,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:05:23,891 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:23,891 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:23,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:05:23,892 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting multErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:23,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:23,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1537468884, now seen corresponding path program 1 times [2022-11-18 20:05:23,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:23,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361964824] [2022-11-18 20:05:23,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:23,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:23,969 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:23,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:23,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361964824] [2022-11-18 20:05:23,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361964824] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:23,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462839645] [2022-11-18 20:05:23,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:23,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:23,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:23,974 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:23,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:05:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:24,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:05:24,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:24,073 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:05:24,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:05:24,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462839645] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:24,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:24,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 10 [2022-11-18 20:05:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450247869] [2022-11-18 20:05:24,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:24,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:05:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:05:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-18 20:05:24,135 INFO L87 Difference]: Start difference. First operand 210 states and 259 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:24,221 INFO L93 Difference]: Finished difference Result 224 states and 274 transitions. [2022-11-18 20:05:24,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:05:24,222 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-11-18 20:05:24,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:24,223 INFO L225 Difference]: With dead ends: 224 [2022-11-18 20:05:24,223 INFO L226 Difference]: Without dead ends: 176 [2022-11-18 20:05:24,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:24,225 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 91 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:24,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 351 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:24,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-18 20:05:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2022-11-18 20:05:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 135 states have (on average 1.237037037037037) internal successors, (167), 140 states have internal predecessors, (167), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-18 20:05:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2022-11-18 20:05:24,239 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 32 [2022-11-18 20:05:24,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:24,239 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2022-11-18 20:05:24,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 7 states have internal predecessors, (41), 6 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 20:05:24,240 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2022-11-18 20:05:24,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 20:05:24,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:24,241 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:24,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:24,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:05:24,447 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:24,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:24,447 INFO L85 PathProgramCache]: Analyzing trace with hash -118239160, now seen corresponding path program 1 times [2022-11-18 20:05:24,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:24,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752816151] [2022-11-18 20:05:24,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:24,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:24,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:05:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:24,541 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:05:24,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:24,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752816151] [2022-11-18 20:05:24,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752816151] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:24,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300536895] [2022-11-18 20:05:24,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:24,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:24,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:24,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:24,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:05:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:24,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:05:24,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:24,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:24,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300536895] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:24,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:24,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2022-11-18 20:05:24,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398918547] [2022-11-18 20:05:24,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:24,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:05:24,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:24,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:05:24,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:24,836 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:05:24,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:24,997 INFO L93 Difference]: Finished difference Result 186 states and 224 transitions. [2022-11-18 20:05:24,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:05:24,998 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 31 [2022-11-18 20:05:24,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:25,000 INFO L225 Difference]: With dead ends: 186 [2022-11-18 20:05:25,000 INFO L226 Difference]: Without dead ends: 174 [2022-11-18 20:05:25,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:05:25,001 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 52 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:25,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 657 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:25,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-18 20:05:25,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 172. [2022-11-18 20:05:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 135 states have (on average 1.2296296296296296) internal successors, (166), 140 states have internal predecessors, (166), 20 states have call successors, (20), 12 states have call predecessors, (20), 11 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-18 20:05:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 205 transitions. [2022-11-18 20:05:25,012 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 205 transitions. Word has length 31 [2022-11-18 20:05:25,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:25,012 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 205 transitions. [2022-11-18 20:05:25,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 12 states have internal predecessors, (43), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:05:25,013 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 205 transitions. [2022-11-18 20:05:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 20:05:25,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:25,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:25,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:25,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:25,220 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:25,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:25,220 INFO L85 PathProgramCache]: Analyzing trace with hash 644683350, now seen corresponding path program 1 times [2022-11-18 20:05:25,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:25,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898252905] [2022-11-18 20:05:25,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:25,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:05:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:25,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:25,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898252905] [2022-11-18 20:05:25,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898252905] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:25,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293945860] [2022-11-18 20:05:25,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:25,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:25,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:25,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:25,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:05:25,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:05:25,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:25,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:25,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:25,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:25,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293945860] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:25,532 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:25,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-18 20:05:25,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754898357] [2022-11-18 20:05:25,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:25,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:05:25,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:25,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:05:25,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:25,534 INFO L87 Difference]: Start difference. First operand 172 states and 205 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:05:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:25,631 INFO L93 Difference]: Finished difference Result 182 states and 217 transitions. [2022-11-18 20:05:25,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:05:25,631 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2022-11-18 20:05:25,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:25,633 INFO L225 Difference]: With dead ends: 182 [2022-11-18 20:05:25,633 INFO L226 Difference]: Without dead ends: 181 [2022-11-18 20:05:25,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-11-18 20:05:25,634 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 37 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:25,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 516 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-11-18 20:05:25,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 178. [2022-11-18 20:05:25,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 144 states have internal predecessors, (171), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (21), 21 states have call predecessors, (21), 19 states have call successors, (21) [2022-11-18 20:05:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 212 transitions. [2022-11-18 20:05:25,645 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 212 transitions. Word has length 32 [2022-11-18 20:05:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:25,646 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 212 transitions. [2022-11-18 20:05:25,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.5) internal successors, (42), 11 states have internal predecessors, (42), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:05:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 212 transitions. [2022-11-18 20:05:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-18 20:05:25,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:25,647 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:25,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:25,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:05:25,855 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting multErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1489652536, now seen corresponding path program 1 times [2022-11-18 20:05:25,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:25,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577160827] [2022-11-18 20:05:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:25,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:05:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:25,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:25,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577160827] [2022-11-18 20:05:25,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577160827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:25,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999819422] [2022-11-18 20:05:25,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:25,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:25,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:25,971 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:25,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:05:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:05:26,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:26,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:26,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:26,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999819422] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:26,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:26,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2022-11-18 20:05:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356989933] [2022-11-18 20:05:26,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:26,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 20:05:26,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:26,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 20:05:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:26,181 INFO L87 Difference]: Start difference. First operand 178 states and 212 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:05:26,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:26,278 INFO L93 Difference]: Finished difference Result 180 states and 215 transitions. [2022-11-18 20:05:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:05:26,279 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 33 [2022-11-18 20:05:26,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:26,281 INFO L225 Difference]: With dead ends: 180 [2022-11-18 20:05:26,281 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 20:05:26,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 62 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:05:26,282 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 51 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:26,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 461 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:05:26,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 20:05:26,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 174. [2022-11-18 20:05:26,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 137 states have (on average 1.2116788321167884) internal successors, (166), 141 states have internal predecessors, (166), 20 states have call successors, (20), 12 states have call predecessors, (20), 12 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-11-18 20:05:26,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2022-11-18 20:05:26,296 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 33 [2022-11-18 20:05:26,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:26,297 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2022-11-18 20:05:26,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-18 20:05:26,298 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2022-11-18 20:05:26,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 20:05:26,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:26,298 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:26,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:26,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:05:26,512 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1385978691, now seen corresponding path program 1 times [2022-11-18 20:05:26,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:26,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610400598] [2022-11-18 20:05:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:26,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:26,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:26,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610400598] [2022-11-18 20:05:26,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610400598] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960125509] [2022-11-18 20:05:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:26,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:26,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:26,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:26,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:05:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:26,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:05:26,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:26,919 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:26,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:27,074 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:27,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960125509] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:27,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:27,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 18 [2022-11-18 20:05:27,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589301366] [2022-11-18 20:05:27,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:27,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-18 20:05:27,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:27,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-18 20:05:27,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:05:27,077 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 18 states, 16 states have (on average 3.1875) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:27,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:27,537 INFO L93 Difference]: Finished difference Result 299 states and 357 transitions. [2022-11-18 20:05:27,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:05:27,540 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.1875) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-18 20:05:27,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:27,541 INFO L225 Difference]: With dead ends: 299 [2022-11-18 20:05:27,541 INFO L226 Difference]: Without dead ends: 160 [2022-11-18 20:05:27,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 56 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:05:27,543 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 133 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:27,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 500 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:05:27,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-11-18 20:05:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 152. [2022-11-18 20:05:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 120 states have (on average 1.1666666666666667) internal successors, (140), 123 states have internal predecessors, (140), 17 states have call successors, (17), 11 states have call predecessors, (17), 11 states have return successors, (17), 17 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-18 20:05:27,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 174 transitions. [2022-11-18 20:05:27,555 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 174 transitions. Word has length 35 [2022-11-18 20:05:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:27,555 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 174 transitions. [2022-11-18 20:05:27,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.1875) internal successors, (51), 11 states have internal predecessors, (51), 7 states have call successors, (8), 7 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:27,556 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 174 transitions. [2022-11-18 20:05:27,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 20:05:27,557 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:27,557 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:27,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:27,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-18 20:05:27,763 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:27,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:27,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1095335930, now seen corresponding path program 1 times [2022-11-18 20:05:27,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:27,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823040834] [2022-11-18 20:05:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:27,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,805 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:27,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823040834] [2022-11-18 20:05:27,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823040834] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:27,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041129371] [2022-11-18 20:05:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:27,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:27,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:27,807 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:27,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:05:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:27,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:05:27,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:27,909 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:27,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:27,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041129371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:27,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:27,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 20:05:27,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127258024] [2022-11-18 20:05:27,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:27,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:05:27,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:27,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:05:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:05:27,942 INFO L87 Difference]: Start difference. First operand 152 states and 174 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:28,043 INFO L93 Difference]: Finished difference Result 291 states and 349 transitions. [2022-11-18 20:05:28,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:05:28,044 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-18 20:05:28,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:28,045 INFO L225 Difference]: With dead ends: 291 [2022-11-18 20:05:28,045 INFO L226 Difference]: Without dead ends: 173 [2022-11-18 20:05:28,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:05:28,046 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 36 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:28,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 378 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:28,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-11-18 20:05:28,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 163. [2022-11-18 20:05:28,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 129 states have (on average 1.1705426356589148) internal successors, (151), 132 states have internal predecessors, (151), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 18 states have call predecessors, (18), 17 states have call successors, (18) [2022-11-18 20:05:28,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 187 transitions. [2022-11-18 20:05:28,062 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 187 transitions. Word has length 38 [2022-11-18 20:05:28,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:28,063 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 187 transitions. [2022-11-18 20:05:28,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 3 states have call successors, (5), 3 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:28,063 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 187 transitions. [2022-11-18 20:05:28,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-18 20:05:28,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:28,064 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:28,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:28,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-18 20:05:28,276 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:28,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash -350622166, now seen corresponding path program 1 times [2022-11-18 20:05:28,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:28,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883753945] [2022-11-18 20:05:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:28,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:05:28,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:28,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883753945] [2022-11-18 20:05:28,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883753945] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:28,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995402325] [2022-11-18 20:05:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:28,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:28,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:28,360 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:28,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:05:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:28,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:05:28,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:28,566 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:28,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:05:28,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995402325] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:28,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:05:28,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2022-11-18 20:05:28,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199323350] [2022-11-18 20:05:28,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:28,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:05:28,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:05:28,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:05:28,568 INFO L87 Difference]: Start difference. First operand 163 states and 187 transitions. Second operand has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:28,771 INFO L93 Difference]: Finished difference Result 189 states and 218 transitions. [2022-11-18 20:05:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:05:28,772 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-11-18 20:05:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:28,773 INFO L225 Difference]: With dead ends: 189 [2022-11-18 20:05:28,773 INFO L226 Difference]: Without dead ends: 188 [2022-11-18 20:05:28,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-18 20:05:28,774 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 88 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:28,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 192 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-18 20:05:28,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 178. [2022-11-18 20:05:28,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 141 states have (on average 1.177304964539007) internal successors, (166), 144 states have internal predecessors, (166), 20 states have call successors, (20), 13 states have call predecessors, (20), 13 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-11-18 20:05:28,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 206 transitions. [2022-11-18 20:05:28,786 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 206 transitions. Word has length 40 [2022-11-18 20:05:28,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:28,786 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 206 transitions. [2022-11-18 20:05:28,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:28,787 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 206 transitions. [2022-11-18 20:05:28,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 20:05:28,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:28,787 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:28,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:28,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:28,993 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting multiple_ofErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2015614804, now seen corresponding path program 1 times [2022-11-18 20:05:28,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:28,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272881732] [2022-11-18 20:05:28,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:28,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:29,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:29,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272881732] [2022-11-18 20:05:29,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272881732] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:29,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116450739] [2022-11-18 20:05:29,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:29,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:29,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:29,182 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:05:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-18 20:05:29,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:29,522 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:29,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:05:29,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116450739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:29,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:05:29,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 19 [2022-11-18 20:05:29,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656948835] [2022-11-18 20:05:29,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:29,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 20:05:29,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:29,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 20:05:29,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:05:29,525 INFO L87 Difference]: Start difference. First operand 178 states and 206 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:29,791 INFO L93 Difference]: Finished difference Result 185 states and 214 transitions. [2022-11-18 20:05:29,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:05:29,792 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-18 20:05:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:29,794 INFO L225 Difference]: With dead ends: 185 [2022-11-18 20:05:29,794 INFO L226 Difference]: Without dead ends: 184 [2022-11-18 20:05:29,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:05:29,795 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 74 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:29,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 301 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-18 20:05:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 178. [2022-11-18 20:05:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 141 states have (on average 1.1702127659574468) internal successors, (165), 144 states have internal predecessors, (165), 20 states have call successors, (20), 13 states have call predecessors, (20), 13 states have return successors, (20), 20 states have call predecessors, (20), 19 states have call successors, (20) [2022-11-18 20:05:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 205 transitions. [2022-11-18 20:05:29,807 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 205 transitions. Word has length 41 [2022-11-18 20:05:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:29,808 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 205 transitions. [2022-11-18 20:05:29,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 205 transitions. [2022-11-18 20:05:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-18 20:05:29,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:29,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:29,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:30,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:30,015 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:30,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:30,016 INFO L85 PathProgramCache]: Analyzing trace with hash 287216546, now seen corresponding path program 1 times [2022-11-18 20:05:30,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:30,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422460795] [2022-11-18 20:05:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:30,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:30,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:30,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:30,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:05:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:30,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:05:30,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:30,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422460795] [2022-11-18 20:05:30,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422460795] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:30,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622165867] [2022-11-18 20:05:30,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:30,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:30,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:30,220 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:30,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:05:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:30,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-18 20:05:30,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:05:30,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:30,632 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:05:30,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622165867] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:30,632 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:30,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-18 20:05:30,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45588324] [2022-11-18 20:05:30,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:30,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-18 20:05:30,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:30,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-18 20:05:30,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:05:30,634 INFO L87 Difference]: Start difference. First operand 178 states and 205 transitions. Second operand has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-18 20:05:30,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:30,851 INFO L93 Difference]: Finished difference Result 193 states and 223 transitions. [2022-11-18 20:05:30,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:05:30,852 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) Word has length 44 [2022-11-18 20:05:30,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:30,853 INFO L225 Difference]: With dead ends: 193 [2022-11-18 20:05:30,853 INFO L226 Difference]: Without dead ends: 188 [2022-11-18 20:05:30,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 81 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=551, Unknown=0, NotChecked=0, Total=702 [2022-11-18 20:05:30,855 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 96 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:30,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 697 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:05:30,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-11-18 20:05:30,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2022-11-18 20:05:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 149 states have (on average 1.1610738255033557) internal successors, (173), 152 states have internal predecessors, (173), 20 states have call successors, (20), 13 states have call predecessors, (20), 15 states have return successors, (22), 22 states have call predecessors, (22), 19 states have call successors, (22) [2022-11-18 20:05:30,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 215 transitions. [2022-11-18 20:05:30,866 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 215 transitions. Word has length 44 [2022-11-18 20:05:30,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:30,867 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 215 transitions. [2022-11-18 20:05:30,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 6 states have call successors, (7) [2022-11-18 20:05:30,867 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 215 transitions. [2022-11-18 20:05:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-18 20:05:30,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:30,868 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:30,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:31,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:31,071 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1599875706, now seen corresponding path program 2 times [2022-11-18 20:05:31,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:31,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235630715] [2022-11-18 20:05:31,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:31,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:05:31,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:31,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235630715] [2022-11-18 20:05:31,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235630715] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:31,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723149820] [2022-11-18 20:05:31,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:05:31,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:31,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:31,353 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:31,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:05:31,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:05:31,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:05:31,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-18 20:05:31,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:31,693 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:31,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-18 20:05:32,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723149820] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:32,007 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:32,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2022-11-18 20:05:32,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776103387] [2022-11-18 20:05:32,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:32,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-11-18 20:05:32,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:32,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-11-18 20:05:32,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1027, Unknown=0, NotChecked=0, Total=1122 [2022-11-18 20:05:32,010 INFO L87 Difference]: Start difference. First operand 188 states and 215 transitions. Second operand has 34 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 20 states have internal predecessors, (98), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:35,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:35,313 INFO L93 Difference]: Finished difference Result 323 states and 382 transitions. [2022-11-18 20:05:35,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-11-18 20:05:35,314 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 20 states have internal predecessors, (98), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-18 20:05:35,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:35,316 INFO L225 Difference]: With dead ends: 323 [2022-11-18 20:05:35,316 INFO L226 Difference]: Without dead ends: 321 [2022-11-18 20:05:35,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1465 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1376, Invalid=6280, Unknown=0, NotChecked=0, Total=7656 [2022-11-18 20:05:35,320 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 749 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 1972 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 2440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 1972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:35,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 916 Invalid, 2440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 1972 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-18 20:05:35,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-18 20:05:35,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 294. [2022-11-18 20:05:35,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 236 states have (on average 1.1228813559322033) internal successors, (265), 237 states have internal predecessors, (265), 33 states have call successors, (33), 21 states have call predecessors, (33), 23 states have return successors, (35), 35 states have call predecessors, (35), 32 states have call successors, (35) [2022-11-18 20:05:35,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 333 transitions. [2022-11-18 20:05:35,340 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 333 transitions. Word has length 46 [2022-11-18 20:05:35,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:35,340 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 333 transitions. [2022-11-18 20:05:35,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.9696969696969697) internal successors, (98), 20 states have internal predecessors, (98), 16 states have call successors, (16), 14 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:05:35,341 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 333 transitions. [2022-11-18 20:05:35,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-18 20:05:35,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:35,342 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:35,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-18 20:05:35,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:35,547 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:35,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:35,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2078564830, now seen corresponding path program 2 times [2022-11-18 20:05:35,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:35,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063689329] [2022-11-18 20:05:35,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:35,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:35,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:05:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:05:35,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:35,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063689329] [2022-11-18 20:05:35,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063689329] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:35,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182023501] [2022-11-18 20:05:35,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:05:35,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:35,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:35,987 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:36,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:05:36,050 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:05:36,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:05:36,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-18 20:05:36,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-18 20:05:36,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-18 20:05:37,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182023501] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:37,180 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:37,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 31 [2022-11-18 20:05:37,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449795458] [2022-11-18 20:05:37,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:37,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 20:05:37,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:37,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 20:05:37,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=842, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:05:37,182 INFO L87 Difference]: Start difference. First operand 294 states and 333 transitions. Second operand has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-18 20:05:37,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:37,795 INFO L93 Difference]: Finished difference Result 323 states and 369 transitions. [2022-11-18 20:05:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-18 20:05:37,796 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) Word has length 68 [2022-11-18 20:05:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:37,797 INFO L225 Difference]: With dead ends: 323 [2022-11-18 20:05:37,797 INFO L226 Difference]: Without dead ends: 314 [2022-11-18 20:05:37,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=414, Invalid=1748, Unknown=0, NotChecked=0, Total=2162 [2022-11-18 20:05:37,799 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 218 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:37,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 851 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:37,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2022-11-18 20:05:37,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2022-11-18 20:05:37,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 252 states have (on average 1.1150793650793651) internal successors, (281), 253 states have internal predecessors, (281), 33 states have call successors, (33), 21 states have call predecessors, (33), 27 states have return successors, (39), 39 states have call predecessors, (39), 32 states have call successors, (39) [2022-11-18 20:05:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 353 transitions. [2022-11-18 20:05:37,819 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 353 transitions. Word has length 68 [2022-11-18 20:05:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:37,819 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 353 transitions. [2022-11-18 20:05:37,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 8 states have return successors, (13), 13 states have call predecessors, (13), 8 states have call successors, (13) [2022-11-18 20:05:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 353 transitions. [2022-11-18 20:05:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-18 20:05:37,821 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:37,821 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:37,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:38,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 20:05:38,027 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting multiple_ofErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:38,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:38,027 INFO L85 PathProgramCache]: Analyzing trace with hash -153968340, now seen corresponding path program 1 times [2022-11-18 20:05:38,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:38,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044993382] [2022-11-18 20:05:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:38,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:38,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:05:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:05:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 20:05:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,436 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 72 proven. 17 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-18 20:05:38,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:38,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044993382] [2022-11-18 20:05:38,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044993382] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:38,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582730788] [2022-11-18 20:05:38,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:38,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:38,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:38,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:05:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:38,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-18 20:05:38,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 34 proven. 62 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:05:38,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:40,080 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 32 proven. 64 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-18 20:05:40,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582730788] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:40,080 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:40,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 24 [2022-11-18 20:05:40,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517654631] [2022-11-18 20:05:40,081 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:40,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-18 20:05:40,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:40,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-18 20:05:40,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=467, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:05:40,089 INFO L87 Difference]: Start difference. First operand 314 states and 353 transitions. Second operand has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 23 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) [2022-11-18 20:05:40,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:40,437 INFO L93 Difference]: Finished difference Result 522 states and 598 transitions. [2022-11-18 20:05:40,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 20:05:40,438 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 23 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) Word has length 78 [2022-11-18 20:05:40,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:40,439 INFO L225 Difference]: With dead ends: 522 [2022-11-18 20:05:40,439 INFO L226 Difference]: Without dead ends: 74 [2022-11-18 20:05:40,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 147 SyntacticMatches, 7 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2022-11-18 20:05:40,442 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 124 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:40,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 467 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:05:40,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-18 20:05:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-18 20:05:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 60 states have (on average 1.05) internal successors, (63), 60 states have internal predecessors, (63), 4 states have call successors, (4), 3 states have call predecessors, (4), 9 states have return successors, (10), 10 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-18 20:05:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2022-11-18 20:05:40,447 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 78 [2022-11-18 20:05:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:40,447 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2022-11-18 20:05:40,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.333333333333333) internal successors, (128), 23 states have internal predecessors, (128), 13 states have call successors, (18), 3 states have call predecessors, (18), 6 states have return successors, (14), 5 states have call predecessors, (14), 12 states have call successors, (14) [2022-11-18 20:05:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2022-11-18 20:05:40,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-18 20:05:40,455 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:40,455 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 8, 8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:40,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-11-18 20:05:40,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-18 20:05:40,661 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:40,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:40,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1185635234, now seen corresponding path program 3 times [2022-11-18 20:05:40,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:40,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624100544] [2022-11-18 20:05:40,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:40,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:05:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:41,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:42,114 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-11-18 20:05:42,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:42,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624100544] [2022-11-18 20:05:42,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624100544] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:42,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135671958] [2022-11-18 20:05:42,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:05:42,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:42,119 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:42,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-18 20:05:42,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-11-18 20:05:42,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:05:42,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-18 20:05:42,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:42,721 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 313 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-11-18 20:05:42,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:05:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 30 proven. 349 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-18 20:05:47,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135671958] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:05:47,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:05:47,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 23] total 51 [2022-11-18 20:05:47,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769000193] [2022-11-18 20:05:47,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:05:47,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-18 20:05:47,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:47,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-18 20:05:47,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2308, Unknown=0, NotChecked=0, Total=2652 [2022-11-18 20:05:47,529 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand has 52 states, 51 states have (on average 2.8823529411764706) internal successors, (147), 50 states have internal predecessors, (147), 10 states have call successors, (12), 3 states have call predecessors, (12), 16 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) [2022-11-18 20:05:48,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:48,934 INFO L93 Difference]: Finished difference Result 131 states and 149 transitions. [2022-11-18 20:05:48,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-18 20:05:48,934 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.8823529411764706) internal successors, (147), 50 states have internal predecessors, (147), 10 states have call successors, (12), 3 states have call predecessors, (12), 16 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) Word has length 130 [2022-11-18 20:05:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:48,935 INFO L225 Difference]: With dead ends: 131 [2022-11-18 20:05:48,935 INFO L226 Difference]: Without dead ends: 114 [2022-11-18 20:05:48,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 243 SyntacticMatches, 8 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1935 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=1076, Invalid=5730, Unknown=0, NotChecked=0, Total=6806 [2022-11-18 20:05:48,938 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 352 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:48,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 596 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:05:48,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-18 20:05:48,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-18 20:05:48,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 92 states have (on average 1.0326086956521738) internal successors, (95), 92 states have internal predecessors, (95), 4 states have call successors, (4), 3 states have call predecessors, (4), 17 states have return successors, (18), 18 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 20:05:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 117 transitions. [2022-11-18 20:05:48,944 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 117 transitions. Word has length 130 [2022-11-18 20:05:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:48,944 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 117 transitions. [2022-11-18 20:05:48,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.8823529411764706) internal successors, (147), 50 states have internal predecessors, (147), 10 states have call successors, (12), 3 states have call predecessors, (12), 16 states have return successors, (25), 25 states have call predecessors, (25), 8 states have call successors, (25) [2022-11-18 20:05:48,945 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 117 transitions. [2022-11-18 20:05:48,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-18 20:05:48,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:48,948 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:05:48,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:49,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 20:05:49,153 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:05:49,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:49,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1244183842, now seen corresponding path program 4 times [2022-11-18 20:05:49,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:49,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283740583] [2022-11-18 20:05:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:49,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:05:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:50,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:05:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:51,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:52,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:53,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:54,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:54,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:55,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:55,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:55,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:55,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:56,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 0 proven. 739 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-11-18 20:05:56,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:56,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283740583] [2022-11-18 20:05:56,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283740583] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:05:56,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126109029] [2022-11-18 20:05:56,224 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:05:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:05:56,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:05:56,225 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:05:56,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-18 20:05:56,427 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:05:56,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:05:56,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-18 20:05:56,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:05:57,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 0 proven. 739 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2022-11-18 20:05:57,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:06:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1489 backedges. 78 proven. 823 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-11-18 20:06:34,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126109029] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:06:34,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:06:34,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 39] total 91 [2022-11-18 20:06:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130073856] [2022-11-18 20:06:34,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:06:34,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-11-18 20:06:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:34,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-11-18 20:06:34,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=7400, Unknown=0, NotChecked=0, Total=8372 [2022-11-18 20:06:34,669 INFO L87 Difference]: Start difference. First operand 114 states and 117 transitions. Second operand has 92 states, 91 states have (on average 2.5824175824175826) internal successors, (235), 90 states have internal predecessors, (235), 10 states have call successors, (10), 3 states have call predecessors, (10), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) [2022-11-18 20:06:38,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:38,950 INFO L93 Difference]: Finished difference Result 227 states and 261 transitions. [2022-11-18 20:06:38,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-11-18 20:06:38,951 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.5824175824175826) internal successors, (235), 90 states have internal predecessors, (235), 10 states have call successors, (10), 3 states have call predecessors, (10), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) Word has length 212 [2022-11-18 20:06:38,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:38,952 INFO L225 Difference]: With dead ends: 227 [2022-11-18 20:06:38,952 INFO L226 Difference]: Without dead ends: 194 [2022-11-18 20:06:38,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 389 SyntacticMatches, 14 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7479 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3216, Invalid=20654, Unknown=0, NotChecked=0, Total=23870 [2022-11-18 20:06:38,959 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 553 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 2052 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 2202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 2052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:38,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 858 Invalid, 2202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 2052 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-18 20:06:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-18 20:06:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-11-18 20:06:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 156 states have (on average 1.0192307692307692) internal successors, (159), 156 states have internal predecessors, (159), 4 states have call successors, (4), 3 states have call predecessors, (4), 33 states have return successors, (34), 34 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 20:06:38,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 197 transitions. [2022-11-18 20:06:38,967 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 197 transitions. Word has length 212 [2022-11-18 20:06:38,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:38,968 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 197 transitions. [2022-11-18 20:06:38,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.5824175824175826) internal successors, (235), 90 states have internal predecessors, (235), 10 states have call successors, (10), 3 states have call predecessors, (10), 32 states have return successors, (49), 49 states have call predecessors, (49), 8 states have call successors, (49) [2022-11-18 20:06:38,968 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 197 transitions. [2022-11-18 20:06:38,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-11-18 20:06:38,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:38,976 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 32, 32, 32, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:06:38,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-18 20:06:39,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-11-18 20:06:39,182 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:06:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash 624826786, now seen corresponding path program 5 times [2022-11-18 20:06:39,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:39,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466646583] [2022-11-18 20:06:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:39,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:06:41,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:06:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:45,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:50,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:54,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:54,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:56,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:56,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:58,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:00,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:01,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:02,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:05,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:06,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:06,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:07,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:08,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:08,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:09,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:11,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:11,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:11,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:11,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 6512 backedges. 0 proven. 3205 refuted. 0 times theorem prover too weak. 3307 trivial. 0 not checked. [2022-11-18 20:07:12,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:12,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466646583] [2022-11-18 20:07:12,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466646583] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:07:12,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658607579] [2022-11-18 20:07:12,404 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:07:12,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:07:12,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:07:12,407 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:07:12,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-18 20:07:13,176 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 35 check-sat command(s) [2022-11-18 20:07:13,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:07:13,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 134 conjunts are in the unsatisfiable core [2022-11-18 20:07:13,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:07:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6512 backedges. 0 proven. 3205 refuted. 0 times theorem prover too weak. 3307 trivial. 0 not checked. [2022-11-18 20:07:16,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:14:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 6512 backedges. 174 proven. 3385 refuted. 0 times theorem prover too weak. 2953 trivial. 0 not checked. [2022-11-18 20:14:45,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658607579] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:14:45,248 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:14:45,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69, 71] total 171 [2022-11-18 20:14:45,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113165548] [2022-11-18 20:14:45,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:14:45,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-11-18 20:14:45,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:14:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-11-18 20:14:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3188, Invalid=26224, Unknown=0, NotChecked=0, Total=29412 [2022-11-18 20:14:45,256 INFO L87 Difference]: Start difference. First operand 194 states and 197 transitions. Second operand has 172 states, 171 states have (on average 2.4035087719298245) internal successors, (411), 170 states have internal predecessors, (411), 10 states have call successors, (12), 3 states have call predecessors, (12), 64 states have return successors, (97), 97 states have call predecessors, (97), 8 states have call successors, (97) [2022-11-18 20:15:02,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:15:02,522 INFO L93 Difference]: Finished difference Result 419 states and 485 transitions. [2022-11-18 20:15:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2022-11-18 20:15:02,523 INFO L78 Accepts]: Start accepts. Automaton has has 172 states, 171 states have (on average 2.4035087719298245) internal successors, (411), 170 states have internal predecessors, (411), 10 states have call successors, (12), 3 states have call predecessors, (12), 64 states have return successors, (97), 97 states have call predecessors, (97), 8 states have call successors, (97) Word has length 418 [2022-11-18 20:15:02,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:15:02,527 INFO L225 Difference]: With dead ends: 419 [2022-11-18 20:15:02,527 INFO L226 Difference]: Without dead ends: 354 [2022-11-18 20:15:02,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1100 GetRequests, 771 SyntacticMatches, 32 SemanticMatches, 297 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30411 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=10760, Invalid=78342, Unknown=0, NotChecked=0, Total=89102 [2022-11-18 20:15:02,542 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 1102 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 6849 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1102 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 7141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 6849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:15:02,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1102 Valid, 1910 Invalid, 7141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 6849 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-18 20:15:02,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-18 20:15:02,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 354. [2022-11-18 20:15:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 284 states have (on average 1.0105633802816902) internal successors, (287), 284 states have internal predecessors, (287), 4 states have call successors, (4), 3 states have call predecessors, (4), 65 states have return successors, (66), 66 states have call predecessors, (66), 3 states have call successors, (66) [2022-11-18 20:15:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 357 transitions. [2022-11-18 20:15:02,559 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 357 transitions. Word has length 418 [2022-11-18 20:15:02,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:15:02,560 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 357 transitions. [2022-11-18 20:15:02,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 171 states have (on average 2.4035087719298245) internal successors, (411), 170 states have internal predecessors, (411), 10 states have call successors, (12), 3 states have call predecessors, (12), 64 states have return successors, (97), 97 states have call predecessors, (97), 8 states have call successors, (97) [2022-11-18 20:15:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 357 transitions. [2022-11-18 20:15:02,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 803 [2022-11-18 20:15:02,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:15:02,596 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 64, 64, 64, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:15:02,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-18 20:15:02,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50b5a02b-d46e-49fe-a823-d9e13ff759e7/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 20:15:02,807 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting multErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [multiple_ofErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, multiple_ofErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-11-18 20:15:02,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:15:02,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2030714462, now seen corresponding path program 6 times [2022-11-18 20:15:02,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:15:02,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384955750] [2022-11-18 20:15:02,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:15:02,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:15:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:10,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-11-18 20:15:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:10,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-18 20:15:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:27,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:15:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:15:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:15:58,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:15:58,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:10,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:41,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:16:54,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:16:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:08,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:17:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:17,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:17:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:28,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:17:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:39,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:17:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:48,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:17:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:17:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:17:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:18:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:13,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:18:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:20,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:18:20,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:28,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:18:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:34,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:18:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:18:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:18:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat