./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS --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 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 --- 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-4e7fbc6 [2022-11-23 03:00:01,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:00:01,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:00:01,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:00:01,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:00:01,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:00:01,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:00:01,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:00:01,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:00:01,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:00:01,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:00:01,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:00:01,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:00:01,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:00:01,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:00:01,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:00:01,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:00:01,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:00:01,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:00:01,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:00:01,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:00:01,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:00:01,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:00:01,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:00:01,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:00:01,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:00:01,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:00:01,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:00:01,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:00:01,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:00:01,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:00:01,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:00:01,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:00:01,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:00:01,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:00:01,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:00:01,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:00:01,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:00:01,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:00:01,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:00:01,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:00:01,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:00:01,409 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:00:01,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:00:01,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:00:01,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:00:01,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:00:01,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:00:01,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:00:01,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:00:01,413 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:00:01,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:00:01,413 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:00:01,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:00:01,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:00:01,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:00:01,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:00:01,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:00:01,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:00:01,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:00:01,415 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:00:01,416 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:00:01,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:00:01,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:00:01,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:00:01,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:00:01,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:00:01,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:00:01,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:00:01,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:00:01,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:00:01,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:00:01,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:00:01,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:00:01,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:00:01,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:00:01,420 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:00:01,420 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:00:01,420 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a6f0ceb44f91fbf2c30fb7a6cf4ec4645c0e639d55219bc8a5d1521d1ed7589 [2022-11-23 03:00:01,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:00:01,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:00:01,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:00:01,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:00:01,732 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:00:01,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2022-11-23 03:00:05,194 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:00:05,393 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:00:05,393 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c [2022-11-23 03:00:05,400 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/data/f519aa05d/4c1b53322f204c68bfec6605e2b3017f/FLAG370e2a551 [2022-11-23 03:00:05,417 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/data/f519aa05d/4c1b53322f204c68bfec6605e2b3017f [2022-11-23 03:00:05,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:00:05,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:00:05,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:00:05,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:00:05,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:00:05,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e063fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05, skipping insertion in model container [2022-11-23 03:00:05,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:00:05,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:00:05,672 WARN L237 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_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c[548,561] [2022-11-23 03:00:05,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:00:05,686 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:00:05,705 WARN L237 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_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/sv-benchmarks/c/recursive-simple/id2_i5_o5-1.c[548,561] [2022-11-23 03:00:05,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:00:05,721 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:00:05,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05 WrapperNode [2022-11-23 03:00:05,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:00:05,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:00:05,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:00:05,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:00:05,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,754 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-11-23 03:00:05,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:00:05,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:00:05,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:00:05,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:00:05,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:00:05,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:00:05,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:00:05,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:00:05,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (1/1) ... [2022-11-23 03:00:05,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:00:05,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:05,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:00:05,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:00:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:00:05,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:00:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2022-11-23 03:00:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2022-11-23 03:00:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:00:05,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:00:05,885 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-11-23 03:00:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-11-23 03:00:05,982 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:00:05,985 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:00:06,209 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:00:06,217 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:00:06,217 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:00:06,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:06 BoogieIcfgContainer [2022-11-23 03:00:06,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:00:06,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:00:06,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:00:06,227 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:00:06,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:00:05" (1/3) ... [2022-11-23 03:00:06,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b83aa65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:06, skipping insertion in model container [2022-11-23 03:00:06,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:00:05" (2/3) ... [2022-11-23 03:00:06,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b83aa65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:00:06, skipping insertion in model container [2022-11-23 03:00:06,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:06" (3/3) ... [2022-11-23 03:00:06,231 INFO L112 eAbstractionObserver]: Analyzing ICFG id2_i5_o5-1.c [2022-11-23 03:00:06,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:00:06,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-23 03:00:06,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:00:06,326 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;@5dfaf4a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:00:06,326 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-23 03:00:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 31 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:00:06,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 03:00:06,364 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:06,365 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:00:06,366 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:06,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:06,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1363684146, now seen corresponding path program 1 times [2022-11-23 03:00:06,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:06,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389275489] [2022-11-23 03:00:06,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:06,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:06,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:06,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:06,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389275489] [2022-11-23 03:00:06,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389275489] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:06,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:06,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:00:06,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507676323] [2022-11-23 03:00:06,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:06,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:00:06,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:06,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:00:06,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:00:06,894 INFO L87 Difference]: Start difference. First operand has 37 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 31 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:07,045 INFO L93 Difference]: Finished difference Result 59 states and 63 transitions. [2022-11-23 03:00:07,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:00:07,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-23 03:00:07,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:07,058 INFO L225 Difference]: With dead ends: 59 [2022-11-23 03:00:07,058 INFO L226 Difference]: Without dead ends: 42 [2022-11-23 03:00:07,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:00:07,066 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 25 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:07,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 123 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:00:07,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-23 03:00:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2022-11-23 03:00:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.48) internal successors, (37), 32 states have internal predecessors, (37), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:00:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2022-11-23 03:00:07,115 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 6 [2022-11-23 03:00:07,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:07,116 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2022-11-23 03:00:07,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:07,117 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2022-11-23 03:00:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 03:00:07,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:07,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:07,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:00:07,118 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:07,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:07,120 INFO L85 PathProgramCache]: Analyzing trace with hash -675464365, now seen corresponding path program 1 times [2022-11-23 03:00:07,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:07,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435580] [2022-11-23 03:00:07,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:07,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:07,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:07,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:07,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435580] [2022-11-23 03:00:07,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:07,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:07,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 03:00:07,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860463663] [2022-11-23 03:00:07,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:07,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 03:00:07,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:07,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 03:00:07,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 03:00:07,209 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:07,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:07,263 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2022-11-23 03:00:07,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:00:07,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-23 03:00:07,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:07,267 INFO L225 Difference]: With dead ends: 44 [2022-11-23 03:00:07,268 INFO L226 Difference]: Without dead ends: 43 [2022-11-23 03:00:07,269 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 [2022-11-23 03:00:07,270 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:07,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 110 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:07,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-11-23 03:00:07,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2022-11-23 03:00:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.44) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:00:07,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-11-23 03:00:07,282 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 7 [2022-11-23 03:00:07,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:07,283 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-11-23 03:00:07,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:07,284 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-11-23 03:00:07,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:00:07,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:07,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:07,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:00:07,286 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:07,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:07,287 INFO L85 PathProgramCache]: Analyzing trace with hash -178347838, now seen corresponding path program 1 times [2022-11-23 03:00:07,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:07,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261834225] [2022-11-23 03:00:07,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:07,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:07,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:07,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:07,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261834225] [2022-11-23 03:00:07,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261834225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:07,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:07,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:00:07,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222803073] [2022-11-23 03:00:07,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:07,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:00:07,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:07,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:00:07,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:00:07,421 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-23 03:00:07,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:07,534 INFO L93 Difference]: Finished difference Result 62 states and 64 transitions. [2022-11-23 03:00:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 03:00:07,535 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 11 [2022-11-23 03:00:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:07,536 INFO L225 Difference]: With dead ends: 62 [2022-11-23 03:00:07,537 INFO L226 Difference]: Without dead ends: 54 [2022-11-23 03:00:07,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:00:07,539 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 32 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:07,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 134 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:00:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-11-23 03:00:07,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2022-11-23 03:00:07,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 40 states have internal predecessors, (47), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:00:07,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 56 transitions. [2022-11-23 03:00:07,550 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 56 transitions. Word has length 11 [2022-11-23 03:00:07,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:07,551 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 56 transitions. [2022-11-23 03:00:07,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-23 03:00:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 56 transitions. [2022-11-23 03:00:07,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 03:00:07,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:07,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:07,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:00:07,553 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:07,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:07,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1233815644, now seen corresponding path program 1 times [2022-11-23 03:00:07,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:07,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883303730] [2022-11-23 03:00:07,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:07,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:07,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:07,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883303730] [2022-11-23 03:00:07,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883303730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:07,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:07,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 03:00:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84515336] [2022-11-23 03:00:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:07,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-23 03:00:07,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:07,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-23 03:00:07,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 03:00:07,689 INFO L87 Difference]: Start difference. First operand 49 states and 56 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-11-23 03:00:07,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:07,829 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2022-11-23 03:00:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 03:00:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 12 [2022-11-23 03:00:07,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:07,835 INFO L225 Difference]: With dead ends: 49 [2022-11-23 03:00:07,835 INFO L226 Difference]: Without dead ends: 47 [2022-11-23 03:00:07,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 03:00:07,838 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 41 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:07,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 62 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:00:07,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-23 03:00:07,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-23 03:00:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 38 states have internal predecessors, (44), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-23 03:00:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-11-23 03:00:07,864 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 12 [2022-11-23 03:00:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:07,864 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-11-23 03:00:07,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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) [2022-11-23 03:00:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-11-23 03:00:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 03:00:07,866 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:07,866 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:07,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 03:00:07,867 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:07,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:07,868 INFO L85 PathProgramCache]: Analyzing trace with hash 168620886, now seen corresponding path program 1 times [2022-11-23 03:00:07,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:07,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812762355] [2022-11-23 03:00:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:07,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:08,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:08,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812762355] [2022-11-23 03:00:08,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812762355] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:08,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467668415] [2022-11-23 03:00:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:08,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:08,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:08,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 03:00:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:08,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 03:00:08,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:08,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:08,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:08,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:08,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467668415] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:08,529 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:08,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-11-23 03:00:08,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443363310] [2022-11-23 03:00:08,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:08,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:00:08,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:08,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:00:08,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:00:08,551 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:08,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:08,892 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2022-11-23 03:00:08,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 03:00:08,893 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-23 03:00:08,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:08,902 INFO L225 Difference]: With dead ends: 109 [2022-11-23 03:00:08,903 INFO L226 Difference]: Without dead ends: 93 [2022-11-23 03:00:08,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2022-11-23 03:00:08,910 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 131 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:08,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 218 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:00:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-23 03:00:08,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 77. [2022-11-23 03:00:08,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 62 states have internal predecessors, (76), 8 states have call successors, (8), 7 states have call predecessors, (8), 6 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 03:00:08,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 91 transitions. [2022-11-23 03:00:08,948 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 91 transitions. Word has length 16 [2022-11-23 03:00:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:08,949 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 91 transitions. [2022-11-23 03:00:08,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 10 states have internal predecessors, (25), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:08,950 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 91 transitions. [2022-11-23 03:00:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 03:00:08,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:08,952 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:08,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 03:00:09,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:09,160 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:09,161 INFO L85 PathProgramCache]: Analyzing trace with hash -200724308, now seen corresponding path program 1 times [2022-11-23 03:00:09,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:09,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551481742] [2022-11-23 03:00:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:09,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:00:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,279 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 03:00:09,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:09,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551481742] [2022-11-23 03:00:09,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551481742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:09,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:09,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:00:09,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124541518] [2022-11-23 03:00:09,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:09,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:00:09,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:09,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:00:09,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:00:09,282 INFO L87 Difference]: Start difference. First operand 77 states and 91 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:00:09,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:09,317 INFO L93 Difference]: Finished difference Result 92 states and 111 transitions. [2022-11-23 03:00:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:00:09,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 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 24 [2022-11-23 03:00:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:09,320 INFO L225 Difference]: With dead ends: 92 [2022-11-23 03:00:09,320 INFO L226 Difference]: Without dead ends: 90 [2022-11-23 03:00:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:00:09,322 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:09,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 79 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:09,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-23 03:00:09,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2022-11-23 03:00:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2794117647058822) internal successors, (87), 72 states have internal predecessors, (87), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 10 states have call predecessors, (10), 7 states have call successors, (10) [2022-11-23 03:00:09,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 105 transitions. [2022-11-23 03:00:09,335 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 105 transitions. Word has length 24 [2022-11-23 03:00:09,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:09,336 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 105 transitions. [2022-11-23 03:00:09,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:00:09,336 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 105 transitions. [2022-11-23 03:00:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-23 03:00:09,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:09,337 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:09,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 03:00:09,338 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:09,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:09,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1199112428, now seen corresponding path program 1 times [2022-11-23 03:00:09,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:09,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679974807] [2022-11-23 03:00:09,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:09,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-23 03:00:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 03:00:09,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:09,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679974807] [2022-11-23 03:00:09,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679974807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:09,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:09,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 03:00:09,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721644872] [2022-11-23 03:00:09,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:09,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 03:00:09,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 03:00:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:00:09,485 INFO L87 Difference]: Start difference. First operand 90 states and 105 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:00:09,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:09,508 INFO L93 Difference]: Finished difference Result 102 states and 119 transitions. [2022-11-23 03:00:09,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 03:00:09,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 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 29 [2022-11-23 03:00:09,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:09,510 INFO L225 Difference]: With dead ends: 102 [2022-11-23 03:00:09,510 INFO L226 Difference]: Without dead ends: 100 [2022-11-23 03:00:09,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 03:00:09,512 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 1 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:09,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 89 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-11-23 03:00:09,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2022-11-23 03:00:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 76 states have (on average 1.25) internal successors, (95), 80 states have internal predecessors, (95), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-23 03:00:09,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2022-11-23 03:00:09,545 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 29 [2022-11-23 03:00:09,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:09,546 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2022-11-23 03:00:09,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 03:00:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2022-11-23 03:00:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-23 03:00:09,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:09,548 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:09,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 03:00:09,549 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:09,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:09,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1006302115, now seen corresponding path program 1 times [2022-11-23 03:00:09,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:09,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563557866] [2022-11-23 03:00:09,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:09,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:00:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-23 03:00:09,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:09,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563557866] [2022-11-23 03:00:09,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563557866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:09,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:09,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:00:09,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435926266] [2022-11-23 03:00:09,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:09,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:00:09,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:09,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:00:09,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:00:09,627 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:09,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:09,637 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-11-23 03:00:09,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:00:09,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-11-23 03:00:09,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:09,638 INFO L225 Difference]: With dead ends: 100 [2022-11-23 03:00:09,639 INFO L226 Difference]: Without dead ends: 99 [2022-11-23 03:00:09,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:00:09,640 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 53 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 [2022-11-23 03:00:09,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-23 03:00:09,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2022-11-23 03:00:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.2105263157894737) internal successors, (92), 79 states have internal predecessors, (92), 8 states have call successors, (8), 7 states have call predecessors, (8), 10 states have return successors, (12), 12 states have call predecessors, (12), 7 states have call successors, (12) [2022-11-23 03:00:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2022-11-23 03:00:09,650 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 29 [2022-11-23 03:00:09,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:09,650 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2022-11-23 03:00:09,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:09,651 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2022-11-23 03:00:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 03:00:09,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:09,652 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-23 03:00:09,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 03:00:09,652 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:09,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1918548602, now seen corresponding path program 1 times [2022-11-23 03:00:09,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:09,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947051201] [2022-11-23 03:00:09,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:09,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,884 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:09,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:09,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947051201] [2022-11-23 03:00:09,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947051201] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:09,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163980012] [2022-11-23 03:00:09,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:09,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:09,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:09,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:09,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 03:00:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:09,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 03:00:09,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:10,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:10,390 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:10,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163980012] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:10,391 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:10,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2022-11-23 03:00:10,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421321229] [2022-11-23 03:00:10,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:10,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-11-23 03:00:10,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:10,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-11-23 03:00:10,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=642, Unknown=0, NotChecked=0, Total=756 [2022-11-23 03:00:10,393 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand has 28 states, 25 states have (on average 1.96) internal successors, (49), 16 states have internal predecessors, (49), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:11,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:11,124 INFO L93 Difference]: Finished difference Result 242 states and 260 transitions. [2022-11-23 03:00:11,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-23 03:00:11,135 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 25 states have (on average 1.96) internal successors, (49), 16 states have internal predecessors, (49), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-23 03:00:11,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:11,137 INFO L225 Difference]: With dead ends: 242 [2022-11-23 03:00:11,138 INFO L226 Difference]: Without dead ends: 212 [2022-11-23 03:00:11,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=319, Invalid=1661, Unknown=0, NotChecked=0, Total=1980 [2022-11-23 03:00:11,142 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 399 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:11,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 337 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:00:11,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-23 03:00:11,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 194. [2022-11-23 03:00:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 152 states have (on average 1.2039473684210527) internal successors, (183), 155 states have internal predecessors, (183), 15 states have call successors, (15), 14 states have call predecessors, (15), 22 states have return successors, (24), 24 states have call predecessors, (24), 14 states have call successors, (24) [2022-11-23 03:00:11,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 222 transitions. [2022-11-23 03:00:11,190 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 222 transitions. Word has length 31 [2022-11-23 03:00:11,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:11,191 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 222 transitions. [2022-11-23 03:00:11,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 25 states have (on average 1.96) internal successors, (49), 16 states have internal predecessors, (49), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:11,191 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 222 transitions. [2022-11-23 03:00:11,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-23 03:00:11,198 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:11,198 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:11,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 03:00:11,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:11,409 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:11,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1125850381, now seen corresponding path program 1 times [2022-11-23 03:00:11,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:11,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539776559] [2022-11-23 03:00:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:11,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-23 03:00:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:00:11,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:11,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539776559] [2022-11-23 03:00:11,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539776559] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:11,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:11,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:00:11,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696969060] [2022-11-23 03:00:11,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:11,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:00:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:11,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:00:11,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:00:11,558 INFO L87 Difference]: Start difference. First operand 194 states and 222 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:11,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:11,602 INFO L93 Difference]: Finished difference Result 223 states and 257 transitions. [2022-11-23 03:00:11,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:00:11,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2022-11-23 03:00:11,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:11,609 INFO L225 Difference]: With dead ends: 223 [2022-11-23 03:00:11,609 INFO L226 Difference]: Without dead ends: 222 [2022-11-23 03:00:11,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:00:11,611 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:11,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:11,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-11-23 03:00:11,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 199. [2022-11-23 03:00:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.1987179487179487) internal successors, (187), 159 states have internal predecessors, (187), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2022-11-23 03:00:11,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 227 transitions. [2022-11-23 03:00:11,633 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 227 transitions. Word has length 40 [2022-11-23 03:00:11,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:11,636 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 227 transitions. [2022-11-23 03:00:11,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:11,636 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 227 transitions. [2022-11-23 03:00:11,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 03:00:11,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:11,641 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:11,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 03:00:11,642 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash -169519029, now seen corresponding path program 1 times [2022-11-23 03:00:11,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:11,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477066702] [2022-11-23 03:00:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:11,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-23 03:00:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,742 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-23 03:00:11,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:11,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477066702] [2022-11-23 03:00:11,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477066702] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:11,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:11,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:00:11,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415931982] [2022-11-23 03:00:11,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:11,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:00:11,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:11,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:00:11,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:00:11,744 INFO L87 Difference]: Start difference. First operand 199 states and 227 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:11,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:11,758 INFO L93 Difference]: Finished difference Result 199 states and 227 transitions. [2022-11-23 03:00:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:00:11,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2022-11-23 03:00:11,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:11,762 INFO L225 Difference]: With dead ends: 199 [2022-11-23 03:00:11,762 INFO L226 Difference]: Without dead ends: 198 [2022-11-23 03:00:11,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:00:11,763 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 2 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 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 [2022-11-23 03:00:11,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:11,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-23 03:00:11,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-23 03:00:11,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 158 states have internal predecessors, (180), 15 states have call successors, (15), 14 states have call predecessors, (15), 23 states have return successors, (25), 25 states have call predecessors, (25), 14 states have call successors, (25) [2022-11-23 03:00:11,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 220 transitions. [2022-11-23 03:00:11,779 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 220 transitions. Word has length 44 [2022-11-23 03:00:11,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:11,780 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 220 transitions. [2022-11-23 03:00:11,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:11,780 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 220 transitions. [2022-11-23 03:00:11,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 03:00:11,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:11,781 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:11,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-23 03:00:11,782 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash -960122528, now seen corresponding path program 1 times [2022-11-23 03:00:11,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:11,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641180044] [2022-11-23 03:00:11,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:11,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:11,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-11-23 03:00:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-23 03:00:11,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:11,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641180044] [2022-11-23 03:00:11,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641180044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:00:11,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:00:11,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 03:00:11,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173691266] [2022-11-23 03:00:11,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:00:11,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 03:00:11,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:11,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 03:00:11,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:00:11,893 INFO L87 Difference]: Start difference. First operand 198 states and 220 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:11,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:11,932 INFO L93 Difference]: Finished difference Result 247 states and 274 transitions. [2022-11-23 03:00:11,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 03:00:11,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-23 03:00:11,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:11,934 INFO L225 Difference]: With dead ends: 247 [2022-11-23 03:00:11,934 INFO L226 Difference]: Without dead ends: 246 [2022-11-23 03:00:11,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 03:00:11,936 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:11,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 03:00:11,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-11-23 03:00:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-11-23 03:00:11,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 195 states have (on average 1.123076923076923) internal successors, (219), 196 states have internal predecessors, (219), 15 states have call successors, (15), 14 states have call predecessors, (15), 32 states have return successors, (35), 35 states have call predecessors, (35), 14 states have call successors, (35) [2022-11-23 03:00:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 269 transitions. [2022-11-23 03:00:11,949 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 269 transitions. Word has length 45 [2022-11-23 03:00:11,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:11,949 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 269 transitions. [2022-11-23 03:00:11,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 03:00:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 269 transitions. [2022-11-23 03:00:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-23 03:00:11,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:11,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:00:11,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-23 03:00:11,951 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:11,952 INFO L85 PathProgramCache]: Analyzing trace with hash 186547927, now seen corresponding path program 1 times [2022-11-23 03:00:11,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:11,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837379129] [2022-11-23 03:00:11,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:11,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-23 03:00:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:12,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:12,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:00:12,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:12,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837379129] [2022-11-23 03:00:12,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837379129] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:12,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938827195] [2022-11-23 03:00:12,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:12,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:12,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:12,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:12,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 03:00:12,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:12,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 03:00:12,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:00:12,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:00:12,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938827195] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:12,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:12,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-11-23 03:00:12,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289890101] [2022-11-23 03:00:12,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:12,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-23 03:00:12,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:12,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-23 03:00:12,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:00:12,558 INFO L87 Difference]: Start difference. First operand 246 states and 269 transitions. Second operand has 16 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-23 03:00:12,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:12,644 INFO L93 Difference]: Finished difference Result 346 states and 387 transitions. [2022-11-23 03:00:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:00:12,645 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2022-11-23 03:00:12,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:12,647 INFO L225 Difference]: With dead ends: 346 [2022-11-23 03:00:12,647 INFO L226 Difference]: Without dead ends: 319 [2022-11-23 03:00:12,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-23 03:00:12,649 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:12,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:00:12,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-11-23 03:00:12,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 271. [2022-11-23 03:00:12,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.1069767441860465) internal successors, (238), 216 states have internal predecessors, (238), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2022-11-23 03:00:12,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 293 transitions. [2022-11-23 03:00:12,673 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 293 transitions. Word has length 45 [2022-11-23 03:00:12,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:12,674 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 293 transitions. [2022-11-23 03:00:12,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 16 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-23 03:00:12,674 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 293 transitions. [2022-11-23 03:00:12,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 03:00:12,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:12,676 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-23 03:00:12,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 03:00:12,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-23 03:00:12,882 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:12,882 INFO L85 PathProgramCache]: Analyzing trace with hash 496403628, now seen corresponding path program 1 times [2022-11-23 03:00:12,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:12,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982449446] [2022-11-23 03:00:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:00:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 03:00:13,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:13,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982449446] [2022-11-23 03:00:13,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982449446] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:13,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072066538] [2022-11-23 03:00:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:13,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:13,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:13,290 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:13,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 03:00:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:13,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 03:00:13,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 22 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 03:00:13,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:14,698 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 03:00:14,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072066538] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:14,698 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:14,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 17] total 23 [2022-11-23 03:00:14,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121089350] [2022-11-23 03:00:14,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:14,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 03:00:14,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:14,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 03:00:14,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2022-11-23 03:00:14,701 INFO L87 Difference]: Start difference. First operand 271 states and 293 transitions. Second operand has 23 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) [2022-11-23 03:00:15,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:15,022 INFO L93 Difference]: Finished difference Result 459 states and 496 transitions. [2022-11-23 03:00:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-23 03:00:15,023 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) Word has length 60 [2022-11-23 03:00:15,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:15,025 INFO L225 Difference]: With dead ends: 459 [2022-11-23 03:00:15,025 INFO L226 Difference]: Without dead ends: 271 [2022-11-23 03:00:15,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 109 SyntacticMatches, 10 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=715, Unknown=0, NotChecked=0, Total=870 [2022-11-23 03:00:15,027 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 119 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:15,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 238 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 03:00:15,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2022-11-23 03:00:15,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2022-11-23 03:00:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 215 states have (on average 1.0883720930232559) internal successors, (234), 216 states have internal predecessors, (234), 15 states have call successors, (15), 14 states have call predecessors, (15), 37 states have return successors, (40), 40 states have call predecessors, (40), 14 states have call successors, (40) [2022-11-23 03:00:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 289 transitions. [2022-11-23 03:00:15,050 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 289 transitions. Word has length 60 [2022-11-23 03:00:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:15,050 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 289 transitions. [2022-11-23 03:00:15,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.090909090909091) internal successors, (68), 21 states have internal predecessors, (68), 11 states have call successors, (11), 3 states have call predecessors, (11), 6 states have return successors, (13), 5 states have call predecessors, (13), 9 states have call successors, (13) [2022-11-23 03:00:15,051 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 289 transitions. [2022-11-23 03:00:15,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-23 03:00:15,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:15,052 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1] [2022-11-23 03:00:15,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 03:00:15,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-23 03:00:15,258 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:15,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1075636490, now seen corresponding path program 2 times [2022-11-23 03:00:15,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:15,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267145862] [2022-11-23 03:00:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:15,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:15,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:15,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267145862] [2022-11-23 03:00:15,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267145862] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:15,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7555257] [2022-11-23 03:00:15,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:00:15,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:15,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:15,883 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:15,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 03:00:15,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:00:15,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:00:15,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-23 03:00:15,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:16,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:17,060 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:17,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7555257] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:17,060 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:17,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 55 [2022-11-23 03:00:17,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094824436] [2022-11-23 03:00:17,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:17,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-11-23 03:00:17,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-11-23 03:00:17,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=424, Invalid=2656, Unknown=0, NotChecked=0, Total=3080 [2022-11-23 03:00:17,064 INFO L87 Difference]: Start difference. First operand 271 states and 289 transitions. Second operand has 56 states, 53 states have (on average 1.9811320754716981) internal successors, (105), 30 states have internal predecessors, (105), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:18,749 INFO L93 Difference]: Finished difference Result 591 states and 615 transitions. [2022-11-23 03:00:18,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-23 03:00:18,751 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 53 states have (on average 1.9811320754716981) internal successors, (105), 30 states have internal predecessors, (105), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2022-11-23 03:00:18,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:18,754 INFO L225 Difference]: With dead ends: 591 [2022-11-23 03:00:18,754 INFO L226 Difference]: Without dead ends: 589 [2022-11-23 03:00:18,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1231, Invalid=6779, Unknown=0, NotChecked=0, Total=8010 [2022-11-23 03:00:18,763 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 839 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:18,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 614 Invalid, 872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 03:00:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2022-11-23 03:00:18,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 564. [2022-11-23 03:00:18,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 450 states have (on average 1.0844444444444445) internal successors, (488), 450 states have internal predecessors, (488), 28 states have call successors, (28), 27 states have call predecessors, (28), 82 states have return successors, (86), 86 states have call predecessors, (86), 27 states have call successors, (86) [2022-11-23 03:00:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 602 transitions. [2022-11-23 03:00:18,804 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 602 transitions. Word has length 66 [2022-11-23 03:00:18,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:18,805 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 602 transitions. [2022-11-23 03:00:18,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 53 states have (on average 1.9811320754716981) internal successors, (105), 30 states have internal predecessors, (105), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 602 transitions. [2022-11-23 03:00:18,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 03:00:18,806 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:18,806 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2022-11-23 03:00:18,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-23 03:00:19,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-23 03:00:19,014 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:19,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:19,015 INFO L85 PathProgramCache]: Analyzing trace with hash -135069831, now seen corresponding path program 1 times [2022-11-23 03:00:19,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:19,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347412341] [2022-11-23 03:00:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:19,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-23 03:00:19,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 03:00:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-11-23 03:00:19,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:19,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347412341] [2022-11-23 03:00:19,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347412341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:19,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309365843] [2022-11-23 03:00:19,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:19,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:19,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:19,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:19,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-23 03:00:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:19,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-23 03:00:19,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 27 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-23 03:00:19,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 45 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 03:00:21,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309365843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:21,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:21,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 19] total 38 [2022-11-23 03:00:21,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957267412] [2022-11-23 03:00:21,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:21,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-23 03:00:21,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:21,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-23 03:00:21,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1292, Unknown=0, NotChecked=0, Total=1406 [2022-11-23 03:00:21,803 INFO L87 Difference]: Start difference. First operand 564 states and 602 transitions. Second operand has 38 states, 36 states have (on average 3.0) internal successors, (108), 34 states have internal predecessors, (108), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2022-11-23 03:00:22,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:22,622 INFO L93 Difference]: Finished difference Result 590 states and 628 transitions. [2022-11-23 03:00:22,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 03:00:22,623 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 36 states have (on average 3.0) internal successors, (108), 34 states have internal predecessors, (108), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) Word has length 70 [2022-11-23 03:00:22,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:22,625 INFO L225 Difference]: With dead ends: 590 [2022-11-23 03:00:22,625 INFO L226 Difference]: Without dead ends: 140 [2022-11-23 03:00:22,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 123 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=301, Invalid=2249, Unknown=0, NotChecked=0, Total=2550 [2022-11-23 03:00:22,628 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 154 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:22,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 159 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 03:00:22,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-11-23 03:00:22,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2022-11-23 03:00:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 109 states have (on average 1.018348623853211) internal successors, (111), 110 states have internal predecessors, (111), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2022-11-23 03:00:22,641 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 70 [2022-11-23 03:00:22,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:22,642 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2022-11-23 03:00:22,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 36 states have (on average 3.0) internal successors, (108), 34 states have internal predecessors, (108), 14 states have call successors, (16), 5 states have call predecessors, (16), 12 states have return successors, (18), 12 states have call predecessors, (18), 10 states have call successors, (18) [2022-11-23 03:00:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2022-11-23 03:00:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-23 03:00:22,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:22,644 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 1, 1, 1, 1] [2022-11-23 03:00:22,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-23 03:00:22,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-23 03:00:22,850 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:22,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:22,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1523877650, now seen corresponding path program 2 times [2022-11-23 03:00:22,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:22,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202838686] [2022-11-23 03:00:22,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:22,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:24,725 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:24,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:24,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202838686] [2022-11-23 03:00:24,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202838686] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:24,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465955587] [2022-11-23 03:00:24,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 03:00:24,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:24,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:24,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:24,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 03:00:24,845 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 03:00:24,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:00:24,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-23 03:00:24,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:25,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:27,834 INFO L134 CoverageAnalysis]: Checked inductivity of 756 backedges. 0 proven. 756 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:27,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465955587] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:27,834 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:27,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2022-11-23 03:00:27,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228142224] [2022-11-23 03:00:27,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:27,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-11-23 03:00:27,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:27,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-11-23 03:00:27,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1514, Invalid=10042, Unknown=0, NotChecked=0, Total=11556 [2022-11-23 03:00:27,857 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 108 states, 105 states have (on average 1.9904761904761905) internal successors, (209), 56 states have internal predecessors, (209), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:30,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:30,728 INFO L93 Difference]: Finished difference Result 277 states and 302 transitions. [2022-11-23 03:00:30,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2022-11-23 03:00:30,728 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 105 states have (on average 1.9904761904761905) internal successors, (209), 56 states have internal predecessors, (209), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2022-11-23 03:00:30,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:30,730 INFO L225 Difference]: With dead ends: 277 [2022-11-23 03:00:30,730 INFO L226 Difference]: Without dead ends: 275 [2022-11-23 03:00:30,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7600 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=3672, Invalid=21768, Unknown=0, NotChecked=0, Total=25440 [2022-11-23 03:00:30,737 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 623 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:30,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 66 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-23 03:00:30,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-23 03:00:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 273. [2022-11-23 03:00:30,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 217 states have (on average 1.0092165898617511) internal successors, (219), 218 states have internal predecessors, (219), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 273 transitions. [2022-11-23 03:00:30,759 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 273 transitions. Word has length 131 [2022-11-23 03:00:30,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:30,760 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 273 transitions. [2022-11-23 03:00:30,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 105 states have (on average 1.9904761904761905) internal successors, (209), 56 states have internal predecessors, (209), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:30,760 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 273 transitions. [2022-11-23 03:00:30,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-23 03:00:30,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:30,763 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1] [2022-11-23 03:00:30,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-23 03:00:30,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:30,970 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:30,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:30,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1181085146, now seen corresponding path program 3 times [2022-11-23 03:00:30,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:30,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202339913] [2022-11-23 03:00:30,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:30,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:00:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:38,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:00:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202339913] [2022-11-23 03:00:38,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202339913] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:00:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001479586] [2022-11-23 03:00:38,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:00:38,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:00:38,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:00:38,343 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:00:38,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-23 03:00:38,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2022-11-23 03:00:38,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:00:38,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 108 conjunts are in the unsatisfiable core [2022-11-23 03:00:38,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:00:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:39,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:00:47,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3328 backedges. 0 proven. 3328 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:00:47,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001479586] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:00:47,679 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:00:47,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108, 108] total 215 [2022-11-23 03:00:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510246741] [2022-11-23 03:00:47,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:00:47,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 216 states [2022-11-23 03:00:47,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:00:47,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 216 interpolants. [2022-11-23 03:00:47,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5944, Invalid=40496, Unknown=0, NotChecked=0, Total=46440 [2022-11-23 03:00:47,694 INFO L87 Difference]: Start difference. First operand 273 states and 273 transitions. Second operand has 216 states, 213 states have (on average 1.9953051643192488) internal successors, (425), 110 states have internal predecessors, (425), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:56,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:00:56,558 INFO L93 Difference]: Finished difference Result 542 states and 593 transitions. [2022-11-23 03:00:56,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2022-11-23 03:00:56,559 INFO L78 Accepts]: Start accepts. Automaton has has 216 states, 213 states have (on average 1.9953051643192488) internal successors, (425), 110 states have internal predecessors, (425), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 266 [2022-11-23 03:00:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:00:56,562 INFO L225 Difference]: With dead ends: 542 [2022-11-23 03:00:56,563 INFO L226 Difference]: Without dead ends: 540 [2022-11-23 03:00:56,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 319 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32497 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=14530, Invalid=88190, Unknown=0, NotChecked=0, Total=102720 [2022-11-23 03:00:56,577 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 1555 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 03:00:56,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 87 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1094 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 03:00:56,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-11-23 03:00:56,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2022-11-23 03:00:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 429 states have (on average 1.0046620046620047) internal successors, (431), 430 states have internal predecessors, (431), 107 states have call successors, (107), 107 states have call predecessors, (107), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:56,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2022-11-23 03:00:56,617 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 266 [2022-11-23 03:00:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:00:56,618 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2022-11-23 03:00:56,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 216 states, 213 states have (on average 1.9953051643192488) internal successors, (425), 110 states have internal predecessors, (425), 106 states have call successors, (106), 106 states have call predecessors, (106), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:00:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2022-11-23 03:00:56,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-11-23 03:00:56,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:00:56,632 INFO L195 NwaCegarLoop]: trace histogram [53, 53, 53, 53, 53, 53, 53, 52, 52, 52, 1, 1, 1, 1] [2022-11-23 03:00:56,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-11-23 03:00:56,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-23 03:00:56,844 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-23 03:00:56,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:00:56,845 INFO L85 PathProgramCache]: Analyzing trace with hash -391380622, now seen corresponding path program 3 times [2022-11-23 03:00:56,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:00:56,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878397272] [2022-11-23 03:00:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:00:56,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:00:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:01:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 0 proven. 13676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:01:21,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:01:21,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878397272] [2022-11-23 03:01:21,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878397272] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 03:01:21,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484749480] [2022-11-23 03:01:21,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-23 03:01:21,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:01:21,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:01:21,875 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 03:01:21,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-23 03:01:22,092 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2022-11-23 03:01:22,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 03:01:22,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 03:01:22,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 03:01:23,402 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2022-11-23 03:01:23,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 03:01:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 13676 backedges. 1352 proven. 24 refuted. 0 times theorem prover too weak. 12300 trivial. 0 not checked. [2022-11-23 03:01:23,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484749480] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 03:01:23,487 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 03:01:23,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [214, 15, 15] total 228 [2022-11-23 03:01:23,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726366087] [2022-11-23 03:01:23,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 03:01:23,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2022-11-23 03:01:23,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:01:23,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2022-11-23 03:01:23,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6590, Invalid=45166, Unknown=0, NotChecked=0, Total=51756 [2022-11-23 03:01:23,498 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand has 228 states, 226 states have (on average 2.02212389380531) internal successors, (457), 116 states have internal predecessors, (457), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:01:23,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 03:01:23,990 INFO L93 Difference]: Finished difference Result 538 states and 538 transitions. [2022-11-23 03:01:23,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 03:01:23,991 INFO L78 Accepts]: Start accepts. Automaton has has 228 states, 226 states have (on average 2.02212389380531) internal successors, (457), 116 states have internal predecessors, (457), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 531 [2022-11-23 03:01:23,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 03:01:23,992 INFO L225 Difference]: With dead ends: 538 [2022-11-23 03:01:23,992 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 03:01:23,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1280 GetRequests, 1048 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19687 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=7238, Invalid=47284, Unknown=0, NotChecked=0, Total=54522 [2022-11-23 03:01:23,998 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 95 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 03:01:23,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 33 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 03:01:23,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 03:01:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 03:01:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:01:24,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 03:01:24,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2022-11-23 03:01:24,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 03:01:24,001 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 03:01:24,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 228 states, 226 states have (on average 2.02212389380531) internal successors, (457), 116 states have internal predecessors, (457), 113 states have call successors, (114), 113 states have call predecessors, (114), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 03:01:24,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 03:01:24,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 03:01:24,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-23 03:01:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-23 03:01:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-23 03:01:24,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-23 03:01:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-23 03:01:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-23 03:01:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-23 03:01:24,006 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-23 03:01:24,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-23 03:01:24,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 03:01:24,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 03:01:24,371 INFO L899 garLoopResultBuilder]: For program point id2FINAL(lines 14 17) no Hoare annotation was computed. [2022-11-23 03:01:24,372 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,372 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-11-23 03:01:24,372 INFO L899 garLoopResultBuilder]: For program point L16-1(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,372 INFO L895 garLoopResultBuilder]: At program point L16-2(line 16) the Hoare annotation is: (let ((.cse0 (= id2_~x |id2_#in~x|))) (and (or (not (= 2 |id2_#in~x|)) .cse0) (or (not (<= |id2_#in~x| 4)) (not (<= 4 |id2_#in~x|)) .cse0) (not (= |id2_#in~x| 0)))) [2022-11-23 03:01:24,372 INFO L899 garLoopResultBuilder]: For program point L16-3(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point L16-4(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point L16-5(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point id2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point id2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point id2EXIT(lines 14 17) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point id2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L902 garLoopResultBuilder]: At program point id2ENTRY(lines 14 17) the Hoare annotation is: true [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point id2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 16) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 03:01:24,373 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 03:01:24,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 03:01:24,374 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 03:01:24,374 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2022-11-23 03:01:24,374 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 24) no Hoare annotation was computed. [2022-11-23 03:01:24,374 INFO L895 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~input~0#1|) [2022-11-23 03:01:24,375 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-11-23 03:01:24,375 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 25) no Hoare annotation was computed. [2022-11-23 03:01:24,375 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,375 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,376 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 9 12) no Hoare annotation was computed. [2022-11-23 03:01:24,376 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 9 12) no Hoare annotation was computed. [2022-11-23 03:01:24,376 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 9 12) the Hoare annotation is: true [2022-11-23 03:01:24,376 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,376 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,377 INFO L899 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,378 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-11-23 03:01:24,378 INFO L899 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,381 INFO L895 garLoopResultBuilder]: At program point L11-2(line 11) the Hoare annotation is: (and (or (not (= |id_#in~x| 3)) (= 3 id_~x)) (or (= id_~x 1) (not (= |id_#in~x| 1))) (or (= 5 id_~x) (not (= 5 |id_#in~x|)))) [2022-11-23 03:01:24,381 INFO L899 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,381 INFO L899 garLoopResultBuilder]: For program point L11-4(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,381 INFO L899 garLoopResultBuilder]: For program point L11-5(line 11) no Hoare annotation was computed. [2022-11-23 03:01:24,385 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:01:24,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:01:24,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:01:24 BoogieIcfgContainer [2022-11-23 03:01:24,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:01:24,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:01:24,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:01:24,395 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:01:24,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:00:06" (3/4) ... [2022-11-23 03:01:24,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 03:01:24,407 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2022-11-23 03:01:24,408 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-11-23 03:01:24,415 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 03:01:24,415 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 03:01:24,415 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-23 03:01:24,416 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 03:01:24,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 03:01:24,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:01:24,464 INFO L158 Benchmark]: Toolchain (without parser) took 79041.24ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 99.0MB in the beginning and 1.1GB in the end (delta: -986.3MB). Peak memory consumption was 240.7MB. Max. memory is 16.1GB. [2022-11-23 03:01:24,465 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:01:24,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.64ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 88.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:01:24,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.45ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:01:24,467 INFO L158 Benchmark]: Boogie Preprocessor took 22.93ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 86.4MB in the end (delta: 930.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:01:24,467 INFO L158 Benchmark]: RCFGBuilder took 440.60ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 76.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 03:01:24,468 INFO L158 Benchmark]: TraceAbstraction took 78171.43ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 75.7MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 213.5MB. Max. memory is 16.1GB. [2022-11-23 03:01:24,469 INFO L158 Benchmark]: Witness Printer took 68.43ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:01:24,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 89.9MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.64ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 88.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.45ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 87.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.93ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 86.4MB in the end (delta: 930.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 440.60ms. Allocated memory is still 142.6MB. Free memory was 86.4MB in the beginning and 76.3MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 78171.43ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 75.7MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 213.5MB. Max. memory is 16.1GB. * Witness Printer took 68.43ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 78.1s, OverallIterations: 19, TraceHistogramMax: 53, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 17.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4040 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4033 mSDsluCounter, 2888 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2435 mSDsCounter, 518 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4306 IncrementalHoareTripleChecker+Invalid, 4824 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 518 mSolverCounterUnsat, 453 mSDtfsCounter, 4306 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3208 GetRequests, 2205 SyntacticMatches, 16 SemanticMatches, 987 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63148 ImplicationChecksByTransitivity, 44.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=564occurred in iteration=15, InterpolantAutomatonStates: 549, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 19 MinimizatonAttempts, 148 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 215 PreInvPairs, 215 NumberOfFragments, 55 HoareAnnotationTreeSize, 215 FomulaSimplifications, 154 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 92 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 56.3s InterpolantComputationTime, 2679 NumberOfCodeBlocks, 2429 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 3858 ConstructedInterpolants, 0 QuantifiedInterpolants, 12492 SizeOfPredicates, 122 NumberOfNonLiveVariables, 1962 ConjunctsInSsa, 280 ConjunctsInUnsatCore, 37 InterpolantComputations, 10 PerfectInterpolantSequences, 27727/54493 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-23 03:01:24,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac86bd6b-11ad-498d-b2d3-a4d2f4a6d64a/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE