./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:36:47,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:36:47,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:36:47,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:36:47,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:36:47,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:36:47,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:36:47,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:36:47,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:36:47,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:36:47,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:36:47,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:36:47,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:36:47,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:36:47,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:36:47,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:36:47,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:36:47,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:36:47,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:36:47,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:36:47,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:36:47,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:36:47,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:36:47,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:36:47,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:36:47,466 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:36:47,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:36:47,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:36:47,467 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:36:47,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:36:47,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:36:47,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:36:47,469 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:36:47,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:36:47,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:36:47,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:36:47,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:36:47,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:36:47,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:36:47,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:36:47,472 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:36:47,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:36:47,487 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:36:47,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:36:47,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:36:47,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:36:47,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:36:47,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:36:47,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:36:47,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:36:47,489 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:36:47,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:36:47,489 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:36:47,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:36:47,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:36:47,490 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:36:47,491 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:36:47,491 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:36:47,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:36:47,491 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:36:47,491 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:36:47,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:36:47,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:36:47,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:36:47,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:36:47,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:36:47,492 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:36:47,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:36:47,492 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:36:47,492 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_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 744c3d26555bbd53a7a0d9e7c64efe010ba06d0f67ec9ca21eb74ed1148222d3 [2022-12-13 12:36:47,654 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:36:47,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:36:47,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:36:47,676 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:36:47,676 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:36:47,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2022-12-13 12:36:50,350 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:36:50,495 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:36:50,496 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/sv-benchmarks/c/termination-numeric/TerminatorRec02.c [2022-12-13 12:36:50,500 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/data/8cb7b30d5/c192b4c7d7be4e8599c53d121882c49c/FLAGb681cbd84 [2022-12-13 12:36:50,511 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/data/8cb7b30d5/c192b4c7d7be4e8599c53d121882c49c [2022-12-13 12:36:50,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:36:50,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:36:50,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:36:50,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:36:50,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:36:50,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3753ce1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50, skipping insertion in model container [2022-12-13 12:36:50,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:36:50,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:36:50,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:36:50,636 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:36:50,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:36:50,655 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:36:50,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50 WrapperNode [2022-12-13 12:36:50,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:36:50,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:36:50,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:36:50,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:36:50,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,676 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-12-13 12:36:50,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:36:50,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:36:50,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:36:50,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:36:50,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,687 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:36:50,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:36:50,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:36:50,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:36:50,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (1/1) ... [2022-12-13 12:36:50,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:36:50,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:50,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:36:50,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:36:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2022-12-13 12:36:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2022-12-13 12:36:50,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:36:50,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:36:50,792 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:36:50,793 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:36:50,885 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:36:50,892 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:36:50,893 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:36:50,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:36:50 BoogieIcfgContainer [2022-12-13 12:36:50,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:36:50,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:36:50,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:36:50,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:36:50,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:36:50" (1/3) ... [2022-12-13 12:36:50,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afe529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:36:50, skipping insertion in model container [2022-12-13 12:36:50,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:36:50" (2/3) ... [2022-12-13 12:36:50,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afe529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:36:50, skipping insertion in model container [2022-12-13 12:36:50,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:36:50" (3/3) ... [2022-12-13 12:36:50,904 INFO L112 eAbstractionObserver]: Analyzing ICFG TerminatorRec02.c [2022-12-13 12:36:50,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:36:50,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 12:36:50,957 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:36:50,962 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;@5e58da90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:36:50,963 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 12:36:50,966 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:36:50,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 12:36:50,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:50,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:50,972 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:36:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:50,977 INFO L85 PathProgramCache]: Analyzing trace with hash -211694171, now seen corresponding path program 1 times [2022-12-13 12:36:50,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:50,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205683619] [2022-12-13 12:36:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:50,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:51,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:51,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205683619] [2022-12-13 12:36:51,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205683619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:51,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:51,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:36:51,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187493088] [2022-12-13 12:36:51,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:51,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:36:51,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:51,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:36:51,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:36:51,155 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 19 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-13 12:36:51,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:51,197 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2022-12-13 12:36:51,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:36:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 8 [2022-12-13 12:36:51,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:36:51,207 INFO L225 Difference]: With dead ends: 25 [2022-12-13 12:36:51,208 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 12:36:51,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:36:51,214 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:36:51,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:36:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 12:36:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2022-12-13 12:36:51,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:36:51,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-12-13 12:36:51,250 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 8 [2022-12-13 12:36:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:36:51,251 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-12-13 12:36:51,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-13 12:36:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-12-13 12:36:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:36:51,251 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:51,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:51,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:36:51,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:36:51,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:51,253 INFO L85 PathProgramCache]: Analyzing trace with hash 2027415328, now seen corresponding path program 1 times [2022-12-13 12:36:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:51,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691187752] [2022-12-13 12:36:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:51,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:51,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:51,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691187752] [2022-12-13 12:36:51,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691187752] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:51,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:51,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:36:51,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158992378] [2022-12-13 12:36:51,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:51,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:36:51,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:51,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:36:51,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:36:51,310 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:36:51,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:51,354 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-12-13 12:36:51,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:36:51,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 12:36:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:36:51,355 INFO L225 Difference]: With dead ends: 18 [2022-12-13 12:36:51,356 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 12:36:51,356 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 [2022-12-13 12:36:51,357 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 19 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:36:51,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:36:51,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 12:36:51,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 12:36:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:36:51,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-12-13 12:36:51,361 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2022-12-13 12:36:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:36:51,361 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-12-13 12:36:51,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:36:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-12-13 12:36:51,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 12:36:51,362 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:51,362 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:51,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:36:51,362 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:36:51,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:51,363 INFO L85 PathProgramCache]: Analyzing trace with hash -768770172, now seen corresponding path program 1 times [2022-12-13 12:36:51,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:51,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662265584] [2022-12-13 12:36:51,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:51,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:51,374 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:36:51,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [997430352] [2022-12-13 12:36:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:51,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:51,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:51,376 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:36:51,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:36:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:51,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 12:36:51,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:36:51,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 12:36:51,526 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:36:51,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:51,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662265584] [2022-12-13 12:36:51,527 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:36:51,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997430352] [2022-12-13 12:36:51,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997430352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:36:51,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:36:51,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 12:36:51,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774563934] [2022-12-13 12:36:51,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:36:51,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 12:36:51,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:51,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 12:36:51,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 12:36:51,530 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:36:51,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:51,572 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-13 12:36:51,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 12:36:51,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-13 12:36:51,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:36:51,574 INFO L225 Difference]: With dead ends: 19 [2022-12-13 12:36:51,574 INFO L226 Difference]: Without dead ends: 18 [2022-12-13 12:36:51,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:36:51,576 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:36:51,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 32 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:36:51,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-13 12:36:51,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-12-13 12:36:51,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:36:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-12-13 12:36:51,579 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 16 [2022-12-13 12:36:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:36:51,580 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-13 12:36:51,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 12:36:51,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-13 12:36:51,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 12:36:51,580 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:51,581 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:51,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:36:51,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:51,783 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:36:51,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:51,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1059120524, now seen corresponding path program 1 times [2022-12-13 12:36:51,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:51,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761122178] [2022-12-13 12:36:51,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:51,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:51,820 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:36:51,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167487154] [2022-12-13 12:36:51,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:51,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:51,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:51,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:36:51,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:36:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:51,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 12:36:51,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:36:52,023 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:52,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:36:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:36:52,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:52,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761122178] [2022-12-13 12:36:52,157 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:36:52,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167487154] [2022-12-13 12:36:52,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167487154] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:36:52,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 12:36:52,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-12-13 12:36:52,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243177885] [2022-12-13 12:36:52,158 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 12:36:52,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 12:36:52,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:52,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 12:36:52,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-12-13 12:36:52,160 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 11 states have internal predecessors, (30), 5 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:36:52,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:52,347 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-12-13 12:36:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 12:36:52,348 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 11 states have internal predecessors, (30), 5 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-12-13 12:36:52,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:36:52,349 INFO L225 Difference]: With dead ends: 40 [2022-12-13 12:36:52,349 INFO L226 Difference]: Without dead ends: 32 [2022-12-13 12:36:52,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=462, Unknown=0, NotChecked=0, Total=600 [2022-12-13 12:36:52,351 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 73 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:36:52,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 43 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:36:52,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-12-13 12:36:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-12-13 12:36:52,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 23 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 12:36:52,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-12-13 12:36:52,358 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2022-12-13 12:36:52,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:36:52,359 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-12-13 12:36:52,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 11 states have internal predecessors, (30), 5 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:36:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-12-13 12:36:52,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-13 12:36:52,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:52,360 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:52,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 12:36:52,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:52,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:36:52,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:52,564 INFO L85 PathProgramCache]: Analyzing trace with hash -333121719, now seen corresponding path program 1 times [2022-12-13 12:36:52,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:52,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196494292] [2022-12-13 12:36:52,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:52,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:52,595 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:36:52,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [444121254] [2022-12-13 12:36:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:52,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:52,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:52,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:36:52,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:36:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:36:52,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 18 conjunts are in the unsatisfiable core [2022-12-13 12:36:52,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:36:52,847 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 12:36:52,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:36:54,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:54,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196494292] [2022-12-13 12:36:54,169 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:36:54,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444121254] [2022-12-13 12:36:54,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444121254] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:36:54,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:36:54,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2022-12-13 12:36:54,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450630269] [2022-12-13 12:36:54,169 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 12:36:54,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 12:36:54,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:54,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 12:36:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2022-12-13 12:36:54,170 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:36:54,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:36:54,296 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-12-13 12:36:54,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 12:36:54,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-12-13 12:36:54,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:36:54,297 INFO L225 Difference]: With dead ends: 40 [2022-12-13 12:36:54,297 INFO L226 Difference]: Without dead ends: 36 [2022-12-13 12:36:54,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2022-12-13 12:36:54,299 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 39 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:36:54,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 40 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:36:54,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-13 12:36:54,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2022-12-13 12:36:54,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 12:36:54,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-12-13 12:36:54,306 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 27 [2022-12-13 12:36:54,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:36:54,306 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-12-13 12:36:54,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.2) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 12:36:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-12-13 12:36:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-12-13 12:36:54,307 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:36:54,307 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:36:54,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:36:54,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:54,508 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:36:54,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:36:54,509 INFO L85 PathProgramCache]: Analyzing trace with hash -499185497, now seen corresponding path program 2 times [2022-12-13 12:36:54,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:36:54,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596130648] [2022-12-13 12:36:54,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:36:54,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:36:54,528 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:36:54,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108927983] [2022-12-13 12:36:54,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:36:54,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:36:54,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:36:54,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:36:54,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 12:36:54,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 12:36:54,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:36:54,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 34 conjunts are in the unsatisfiable core [2022-12-13 12:36:54,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:36:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 12:36:54,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:36:59,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:36:59,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596130648] [2022-12-13 12:36:59,604 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:36:59,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108927983] [2022-12-13 12:36:59,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108927983] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:36:59,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:36:59,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2022-12-13 12:36:59,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131295667] [2022-12-13 12:36:59,605 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 12:36:59,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 12:36:59,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:36:59,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 12:36:59,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2022-12-13 12:36:59,606 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:37:01,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:01,146 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-12-13 12:37:01,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 12:37:01,147 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 37 [2022-12-13 12:37:01,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:01,147 INFO L225 Difference]: With dead ends: 45 [2022-12-13 12:37:01,147 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 12:37:01,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2022-12-13 12:37:01,148 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 43 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:01,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 58 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:37:01,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 12:37:01,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2022-12-13 12:37:01,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 31 states have (on average 1.064516129032258) internal successors, (33), 31 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-13 12:37:01,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-12-13 12:37:01,153 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 37 [2022-12-13 12:37:01,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:01,153 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-12-13 12:37:01,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.1538461538461537) internal successors, (28), 11 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:37:01,153 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-12-13 12:37:01,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-13 12:37:01,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:01,154 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:37:01,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 12:37:01,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 12:37:01,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:37:01,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:01,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1979620279, now seen corresponding path program 3 times [2022-12-13 12:37:01,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:01,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77904405] [2022-12-13 12:37:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:01,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:01,370 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:37:01,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870167496] [2022-12-13 12:37:01,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 12:37:01,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:01,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:01,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:37:01,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 12:37:01,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-13 12:37:01,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:37:01,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-13 12:37:01,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:37:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 43 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 12:37:02,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:37:03,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:03,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77904405] [2022-12-13 12:37:03,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:37:03,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870167496] [2022-12-13 12:37:03,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870167496] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:37:03,777 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:37:03,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2022-12-13 12:37:03,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368699099] [2022-12-13 12:37:03,778 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 12:37:03,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 12:37:03,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:03,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 12:37:03,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2022-12-13 12:37:03,779 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 14 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 12:37:06,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:37:09,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:09,550 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-12-13 12:37:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 12:37:09,550 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 14 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2022-12-13 12:37:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:09,551 INFO L225 Difference]: With dead ends: 50 [2022-12-13 12:37:09,551 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 12:37:09,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=233, Invalid=1027, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 12:37:09,552 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:09,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 80 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 4 Unknown, 0 Unchecked, 3.1s Time] [2022-12-13 12:37:09,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 12:37:09,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2022-12-13 12:37:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 35 states have (on average 1.0571428571428572) internal successors, (37), 35 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 12:37:09,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2022-12-13 12:37:09,557 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 47 [2022-12-13 12:37:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2022-12-13 12:37:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 14 states have internal predecessors, (33), 4 states have call successors, (4), 1 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2022-12-13 12:37:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2022-12-13 12:37:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 12:37:09,558 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:09,558 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:37:09,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-12-13 12:37:09,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:09,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:37:09,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:09,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1907767481, now seen corresponding path program 4 times [2022-12-13 12:37:09,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:09,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982771347] [2022-12-13 12:37:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:09,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:09,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:37:09,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469544691] [2022-12-13 12:37:09,775 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 12:37:09,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:09,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:09,776 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:37:09,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 12:37:09,831 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 12:37:09,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:37:09,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 45 conjunts are in the unsatisfiable core [2022-12-13 12:37:09,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:37:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 55 proven. 68 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 12:37:16,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:37:18,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:18,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982771347] [2022-12-13 12:37:18,479 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:37:18,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469544691] [2022-12-13 12:37:18,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469544691] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:37:18,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:37:18,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2022-12-13 12:37:18,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758425159] [2022-12-13 12:37:18,479 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 12:37:18,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-12-13 12:37:18,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-12-13 12:37:18,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=612, Unknown=4, NotChecked=0, Total=756 [2022-12-13 12:37:18,481 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 22 states, 20 states have (on average 2.0) internal successors, (40), 17 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 12:37:22,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:37:30,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:37:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:31,084 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2022-12-13 12:37:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-13 12:37:31,084 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 2.0) internal successors, (40), 17 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 67 [2022-12-13 12:37:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:31,085 INFO L225 Difference]: With dead ends: 55 [2022-12-13 12:37:31,085 INFO L226 Difference]: Without dead ends: 51 [2022-12-13 12:37:31,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=242, Invalid=1014, Unknown=4, NotChecked=0, Total=1260 [2022-12-13 12:37:31,087 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 55 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 21 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:31,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 125 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 394 Invalid, 4 Unknown, 0 Unchecked, 6.2s Time] [2022-12-13 12:37:31,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-12-13 12:37:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2022-12-13 12:37:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 states have internal predecessors, (41), 3 states have call successors, (3), 2 states have call predecessors, (3), 6 states have return successors, (7), 7 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 12:37:31,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2022-12-13 12:37:31,094 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 67 [2022-12-13 12:37:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:31,094 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2022-12-13 12:37:31,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 2.0) internal successors, (40), 17 states have internal predecessors, (40), 4 states have call successors, (5), 1 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-12-13 12:37:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2022-12-13 12:37:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-13 12:37:31,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:31,095 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:37:31,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 12:37:31,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:31,297 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:37:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:31,299 INFO L85 PathProgramCache]: Analyzing trace with hash -268517047, now seen corresponding path program 5 times [2022-12-13 12:37:31,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:31,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438889728] [2022-12-13 12:37:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:31,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:31,320 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:37:31,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [523159264] [2022-12-13 12:37:31,320 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 12:37:31,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:31,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:31,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:37:31,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 12:37:31,381 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-12-13 12:37:31,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:37:31,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-13 12:37:31,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:37:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 19 proven. 100 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-12-13 12:37:31,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:37:48,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:37:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438889728] [2022-12-13 12:37:48,887 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:37:48,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523159264] [2022-12-13 12:37:48,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523159264] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:37:48,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:37:48,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-12-13 12:37:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743544402] [2022-12-13 12:37:48,887 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 12:37:48,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 12:37:48,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:37:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 12:37:48,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=992, Unknown=2, NotChecked=0, Total=1190 [2022-12-13 12:37:48,889 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 25 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 19 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 12:37:54,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-12-13 12:37:54,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:37:54,712 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2022-12-13 12:37:54,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-12-13 12:37:54,713 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 19 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2022-12-13 12:37:54,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:37:54,713 INFO L225 Difference]: With dead ends: 60 [2022-12-13 12:37:54,713 INFO L226 Difference]: Without dead ends: 56 [2022-12-13 12:37:54,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=326, Invalid=1564, Unknown=2, NotChecked=0, Total=1892 [2022-12-13 12:37:54,714 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 64 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 32 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-12-13 12:37:54,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 181 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 563 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2022-12-13 12:37:54,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-13 12:37:54,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2022-12-13 12:37:54,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 43 states have (on average 1.0465116279069768) internal successors, (45), 43 states have internal predecessors, (45), 3 states have call successors, (3), 2 states have call predecessors, (3), 7 states have return successors, (8), 8 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 12:37:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 56 transitions. [2022-12-13 12:37:54,719 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 56 transitions. Word has length 67 [2022-12-13 12:37:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:37:54,719 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 56 transitions. [2022-12-13 12:37:54,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 19 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2022-12-13 12:37:54,719 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 56 transitions. [2022-12-13 12:37:54,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 12:37:54,720 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:37:54,720 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 9, 9, 9, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:37:54,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 12:37:54,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:54,922 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:37:54,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:37:54,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2043990329, now seen corresponding path program 6 times [2022-12-13 12:37:54,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:37:54,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631533431] [2022-12-13 12:37:54,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:37:54,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:37:54,959 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:37:54,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398166905] [2022-12-13 12:37:54,960 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 12:37:54,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:37:54,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:37:54,962 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:37:54,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 12:37:55,115 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-12-13 12:37:55,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:37:55,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 64 conjunts are in the unsatisfiable core [2022-12-13 12:37:55,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:38:07,023 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 84 proven. 129 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-12-13 12:38:07,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:38:11,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:38:11,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631533431] [2022-12-13 12:38:11,918 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 12:38:11,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398166905] [2022-12-13 12:38:11,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398166905] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:38:11,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:38:11,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2022-12-13 12:38:11,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590407565] [2022-12-13 12:38:11,918 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-12-13 12:38:11,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 12:38:11,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:38:11,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 12:38:11,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=833, Unknown=5, NotChecked=0, Total=992 [2022-12-13 12:38:11,920 INFO L87 Difference]: Start difference. First operand 54 states and 56 transitions. Second operand has 26 states, 25 states have (on average 1.8) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 12:38:16,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:38:18,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:38:19,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:38:27,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2022-12-13 12:38:28,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:38:28,747 INFO L93 Difference]: Finished difference Result 65 states and 69 transitions. [2022-12-13 12:38:28,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 12:38:28,747 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.8) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) Word has length 87 [2022-12-13 12:38:28,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:38:28,748 INFO L225 Difference]: With dead ends: 65 [2022-12-13 12:38:28,749 INFO L226 Difference]: Without dead ends: 61 [2022-12-13 12:38:28,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=244, Invalid=1391, Unknown=5, NotChecked=0, Total=1640 [2022-12-13 12:38:28,750 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 54 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-13 12:38:28,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 219 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 744 Invalid, 6 Unknown, 0 Unchecked, 8.7s Time] [2022-12-13 12:38:28,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-12-13 12:38:28,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2022-12-13 12:38:28,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.0425531914893618) internal successors, (49), 47 states have internal predecessors, (49), 3 states have call successors, (3), 2 states have call predecessors, (3), 8 states have return successors, (9), 9 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 12:38:28,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2022-12-13 12:38:28,756 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 87 [2022-12-13 12:38:28,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:38:28,757 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2022-12-13 12:38:28,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.8) internal successors, (45), 19 states have internal predecessors, (45), 3 states have call successors, (4), 1 states have call predecessors, (4), 7 states have return successors, (7), 7 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 12:38:28,757 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2022-12-13 12:38:28,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 12:38:28,759 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:38:28,759 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 8, 8, 8, 8, 7, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:38:28,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 12:38:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 12:38:28,961 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting factErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [factErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, factErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-12-13 12:38:28,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:38:28,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1529097577, now seen corresponding path program 7 times [2022-12-13 12:38:28,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:38:28,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109415124] [2022-12-13 12:38:28,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:38:28,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:38:29,007 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 12:38:29,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1258006271] [2022-12-13 12:38:29,007 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-12-13 12:38:29,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:38:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:38:29,009 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:38:29,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3b1ec2d-f847-4f59-adbc-8f72c6dc49ce/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 12:38:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:38:29,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 76 conjunts are in the unsatisfiable core [2022-12-13 12:38:29,078 INFO L286 TraceCheckSpWp]: Computing forward predicates...