./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1eba5bc7e50ef659abfe155713ae512eb1ae4032ecb78db63a02f9acbcdf9dbe --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:12,457 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:12,513 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:15:12,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:12,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:12,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:12,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:12,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:12,561 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:15:12,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:15:12,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:12,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:12,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:12,566 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:12,566 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:12,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:12,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:12,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:12,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:12,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:12,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:12,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:12,572 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:12,572 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:12,572 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:12,572 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:15:12,573 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:12,573 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:12,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:12,573 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:12,574 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:12,574 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:12,574 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:15:12,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:12,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:12,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:12,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:12,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:12,580 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:12,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:12,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:12,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:12,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:12,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:12,582 INFO L153 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_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1eba5bc7e50ef659abfe155713ae512eb1ae4032ecb78db63a02f9acbcdf9dbe [2024-10-31 22:15:12,878 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:12,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:12,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:12,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:12,916 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:12,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c Unable to find full path for "g++" [2024-10-31 22:15:14,891 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:15,082 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:15,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/sv-benchmarks/c/nla-digbench-scaling/hard-ll_unwindbound5.c [2024-10-31 22:15:15,089 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/data/d89f94e4f/7769acf5deda4e159682a763ad66d53d/FLAG24485c6ec [2024-10-31 22:15:15,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/data/d89f94e4f/7769acf5deda4e159682a763ad66d53d [2024-10-31 22:15:15,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:15,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:15,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:15,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:15,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:15,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c55ec99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15, skipping insertion in model container [2024-10-31 22:15:15,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,504 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:15,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:15,735 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:15,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:15,777 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:15,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15 WrapperNode [2024-10-31 22:15:15,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:15,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:15,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:15,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:15,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,820 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2024-10-31 22:15:15,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:15,822 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:15,822 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:15,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:15,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,851 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 22:15:15,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,860 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:15,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:15,866 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:15,866 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:15,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (1/1) ... [2024-10-31 22:15:15,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:15,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:15,903 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:15,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:15:15,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:15,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:15,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:15:15,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:15:15,999 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:16,002 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:16,475 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-10-31 22:15:16,475 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:16,496 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:16,497 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:15:16,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:16 BoogieIcfgContainer [2024-10-31 22:15:16,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:16,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:16,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:16,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:16,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:15" (1/3) ... [2024-10-31 22:15:16,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ebc07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:16, skipping insertion in model container [2024-10-31 22:15:16,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:15" (2/3) ... [2024-10-31 22:15:16,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ebc07d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:16, skipping insertion in model container [2024-10-31 22:15:16,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:16" (3/3) ... [2024-10-31 22:15:16,508 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_unwindbound5.c [2024-10-31 22:15:16,522 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:16,523 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-31 22:15:16,586 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:16,594 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4e1432e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:16,594 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-10-31 22:15:16,599 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-31 22:15:16,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:15:16,607 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:16,608 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:15:16,608 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:16,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:16,614 INFO L85 PathProgramCache]: Analyzing trace with hash 889508776, now seen corresponding path program 1 times [2024-10-31 22:15:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934119790] [2024-10-31 22:15:16,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:16,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:16,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:16,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:16,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934119790] [2024-10-31 22:15:16,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934119790] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:16,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:16,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:16,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655274141] [2024-10-31 22:15:16,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:16,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:15:16,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:16,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:15:16,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:15:16,809 INFO L87 Difference]: Start difference. First operand has 84 states, 47 states have (on average 1.7872340425531914) internal successors, (84), 75 states have internal predecessors, (84), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:16,836 INFO L93 Difference]: Finished difference Result 164 states and 198 transitions. [2024-10-31 22:15:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:15:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-31 22:15:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:16,845 INFO L225 Difference]: With dead ends: 164 [2024-10-31 22:15:16,845 INFO L226 Difference]: Without dead ends: 76 [2024-10-31 22:15:16,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:15:16,852 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:16,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:16,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-31 22:15:16,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-10-31 22:15:16,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 42 states have (on average 1.7619047619047619) internal successors, (74), 69 states have internal predecessors, (74), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:15:16,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2024-10-31 22:15:16,941 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 6 [2024-10-31 22:15:16,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:16,943 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2024-10-31 22:15:16,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2024-10-31 22:15:16,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:15:16,958 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:16,959 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:15:16,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:16,959 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:16,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:16,961 INFO L85 PathProgramCache]: Analyzing trace with hash 889568358, now seen corresponding path program 1 times [2024-10-31 22:15:16,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:16,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239191523] [2024-10-31 22:15:16,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:16,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:17,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:17,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239191523] [2024-10-31 22:15:17,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239191523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:17,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:17,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:17,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264455617] [2024-10-31 22:15:17,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:17,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:17,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:17,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:17,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:17,090 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:17,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:17,180 INFO L93 Difference]: Finished difference Result 85 states and 92 transitions. [2024-10-31 22:15:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:17,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-31 22:15:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:17,185 INFO L225 Difference]: With dead ends: 85 [2024-10-31 22:15:17,185 INFO L226 Difference]: Without dead ends: 84 [2024-10-31 22:15:17,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:17,187 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 34 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:17,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 202 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:17,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-31 22:15:17,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 79. [2024-10-31 22:15:17,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 71 states have internal predecessors, (76), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:15:17,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-10-31 22:15:17,209 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 6 [2024-10-31 22:15:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:17,210 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-10-31 22:15:17,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-10-31 22:15:17,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:15:17,211 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:17,211 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:17,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:17,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:17,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815370, now seen corresponding path program 1 times [2024-10-31 22:15:17,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:17,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142320099] [2024-10-31 22:15:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:17,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:17,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:17,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:17,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:17,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142320099] [2024-10-31 22:15:17,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142320099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:17,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:17,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:17,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790737661] [2024-10-31 22:15:17,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:17,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:17,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:17,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:17,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:17,344 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:17,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:17,420 INFO L93 Difference]: Finished difference Result 134 states and 145 transitions. [2024-10-31 22:15:17,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:17,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-31 22:15:17,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:17,425 INFO L225 Difference]: With dead ends: 134 [2024-10-31 22:15:17,425 INFO L226 Difference]: Without dead ends: 83 [2024-10-31 22:15:17,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:17,426 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 3 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:17,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 229 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:15:17,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-31 22:15:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-31 22:15:17,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 49 states have (on average 1.6326530612244898) internal successors, (80), 75 states have internal predecessors, (80), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-31 22:15:17,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 90 transitions. [2024-10-31 22:15:17,440 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 90 transitions. Word has length 7 [2024-10-31 22:15:17,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:17,441 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 90 transitions. [2024-10-31 22:15:17,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 90 transitions. [2024-10-31 22:15:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-31 22:15:17,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:17,442 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:17,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:17,442 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:17,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:17,443 INFO L85 PathProgramCache]: Analyzing trace with hash 667309322, now seen corresponding path program 1 times [2024-10-31 22:15:17,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:17,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952268680] [2024-10-31 22:15:17,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:17,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:17,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670790331] [2024-10-31 22:15:17,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:17,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:17,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:17,479 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:17,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:15:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:17,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:17,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:17,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:15:17,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:17,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:17,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952268680] [2024-10-31 22:15:17,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:17,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670790331] [2024-10-31 22:15:17,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670790331] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:17,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:17,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:17,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398222115] [2024-10-31 22:15:17,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:17,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:17,615 INFO L87 Difference]: Start difference. First operand 83 states and 90 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:17,709 INFO L93 Difference]: Finished difference Result 176 states and 195 transitions. [2024-10-31 22:15:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:17,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-31 22:15:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:17,711 INFO L225 Difference]: With dead ends: 176 [2024-10-31 22:15:17,711 INFO L226 Difference]: Without dead ends: 122 [2024-10-31 22:15:17,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:17,713 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 33 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:17,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 135 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-31 22:15:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 106. [2024-10-31 22:15:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 67 states have (on average 1.6119402985074627) internal successors, (108), 93 states have internal predecessors, (108), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:15:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 128 transitions. [2024-10-31 22:15:17,727 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 128 transitions. Word has length 19 [2024-10-31 22:15:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:17,728 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 128 transitions. [2024-10-31 22:15:17,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 22:15:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 128 transitions. [2024-10-31 22:15:17,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-31 22:15:17,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:17,729 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:17,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:15:17,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:17,935 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:17,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:17,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1596807332, now seen corresponding path program 1 times [2024-10-31 22:15:17,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:17,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206174907] [2024-10-31 22:15:17,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:17,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,121 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:18,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:18,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206174907] [2024-10-31 22:15:18,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206174907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:18,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:18,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:18,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935505619] [2024-10-31 22:15:18,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:18,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:18,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:18,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:18,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:18,124 INFO L87 Difference]: Start difference. First operand 106 states and 128 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:18,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:18,253 INFO L93 Difference]: Finished difference Result 106 states and 128 transitions. [2024-10-31 22:15:18,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:18,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-10-31 22:15:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:18,255 INFO L225 Difference]: With dead ends: 106 [2024-10-31 22:15:18,258 INFO L226 Difference]: Without dead ends: 104 [2024-10-31 22:15:18,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:18,260 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 47 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:18,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 70 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-31 22:15:18,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-31 22:15:18,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.5671641791044777) internal successors, (105), 91 states have internal predecessors, (105), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:15:18,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 125 transitions. [2024-10-31 22:15:18,284 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 125 transitions. Word has length 27 [2024-10-31 22:15:18,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:18,284 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 125 transitions. [2024-10-31 22:15:18,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:18,285 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 125 transitions. [2024-10-31 22:15:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:15:18,289 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:18,289 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:18,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:18,289 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:18,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:18,290 INFO L85 PathProgramCache]: Analyzing trace with hash -2038581697, now seen corresponding path program 1 times [2024-10-31 22:15:18,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:18,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470432904] [2024-10-31 22:15:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:18,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:18,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:18,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470432904] [2024-10-31 22:15:18,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470432904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:18,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:18,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:18,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467943167] [2024-10-31 22:15:18,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:18,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:18,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:18,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:18,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:18,515 INFO L87 Difference]: Start difference. First operand 104 states and 125 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:18,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:18,624 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2024-10-31 22:15:18,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:15:18,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-10-31 22:15:18,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:18,626 INFO L225 Difference]: With dead ends: 104 [2024-10-31 22:15:18,626 INFO L226 Difference]: Without dead ends: 103 [2024-10-31 22:15:18,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:15:18,630 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 72 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:18,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 205 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:18,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-10-31 22:15:18,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2024-10-31 22:15:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.537313432835821) internal successors, (103), 90 states have internal predecessors, (103), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:15:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2024-10-31 22:15:18,661 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 28 [2024-10-31 22:15:18,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:18,661 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2024-10-31 22:15:18,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2024-10-31 22:15:18,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:15:18,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:18,667 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:18,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:15:18,668 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:18,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:18,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2038580191, now seen corresponding path program 1 times [2024-10-31 22:15:18,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:18,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481503992] [2024-10-31 22:15:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:18,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:18,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:18,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481503992] [2024-10-31 22:15:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481503992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:18,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:18,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:18,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017777190] [2024-10-31 22:15:18,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:18,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:18,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:18,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:18,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:18,776 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:18,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:18,849 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2024-10-31 22:15:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:18,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 28 [2024-10-31 22:15:18,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:18,851 INFO L225 Difference]: With dead ends: 113 [2024-10-31 22:15:18,852 INFO L226 Difference]: Without dead ends: 112 [2024-10-31 22:15:18,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:18,853 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 21 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:18,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 126 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:18,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-10-31 22:15:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2024-10-31 22:15:18,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 90 states have internal predecessors, (102), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:15:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2024-10-31 22:15:18,880 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 28 [2024-10-31 22:15:18,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:18,881 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2024-10-31 22:15:18,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2024-10-31 22:15:18,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 22:15:18,882 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:18,882 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:18,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:15:18,883 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:18,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:18,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1228476917, now seen corresponding path program 1 times [2024-10-31 22:15:18,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:18,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373663270] [2024-10-31 22:15:18,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:18,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,035 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:19,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:19,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373663270] [2024-10-31 22:15:19,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373663270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:19,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:19,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:19,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104874591] [2024-10-31 22:15:19,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:19,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:19,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:19,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:19,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:19,041 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:19,146 INFO L93 Difference]: Finished difference Result 120 states and 136 transitions. [2024-10-31 22:15:19,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:15:19,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-10-31 22:15:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:19,150 INFO L225 Difference]: With dead ends: 120 [2024-10-31 22:15:19,154 INFO L226 Difference]: Without dead ends: 111 [2024-10-31 22:15:19,154 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:15:19,155 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 20 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:19,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 344 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:19,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-10-31 22:15:19,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 107. [2024-10-31 22:15:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 93 states have internal predecessors, (103), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:15:19,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 123 transitions. [2024-10-31 22:15:19,170 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 123 transitions. Word has length 29 [2024-10-31 22:15:19,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:19,171 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 123 transitions. [2024-10-31 22:15:19,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 123 transitions. [2024-10-31 22:15:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-31 22:15:19,175 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:19,175 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:19,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:15:19,176 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:19,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:19,176 INFO L85 PathProgramCache]: Analyzing trace with hash -549686313, now seen corresponding path program 1 times [2024-10-31 22:15:19,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:19,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408758430] [2024-10-31 22:15:19,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:19,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:19,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [51568163] [2024-10-31 22:15:19,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:19,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:19,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:19,199 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:19,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:15:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:19,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:19,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:19,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:19,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408758430] [2024-10-31 22:15:19,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:19,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51568163] [2024-10-31 22:15:19,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51568163] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:19,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:19,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:19,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117221018] [2024-10-31 22:15:19,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:19,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:19,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:19,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:19,308 INFO L87 Difference]: Start difference. First operand 107 states and 123 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:19,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:19,377 INFO L93 Difference]: Finished difference Result 145 states and 171 transitions. [2024-10-31 22:15:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-31 22:15:19,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:19,379 INFO L225 Difference]: With dead ends: 145 [2024-10-31 22:15:19,379 INFO L226 Difference]: Without dead ends: 141 [2024-10-31 22:15:19,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:19,380 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 41 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:19,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 102 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-10-31 22:15:19,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 127. [2024-10-31 22:15:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 111 states have internal predecessors, (130), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:15:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2024-10-31 22:15:19,396 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 31 [2024-10-31 22:15:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:19,397 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2024-10-31 22:15:19,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2024-10-31 22:15:19,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:15:19,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:19,400 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:19,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:15:19,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:19,603 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:19,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:19,603 INFO L85 PathProgramCache]: Analyzing trace with hash 32433593, now seen corresponding path program 1 times [2024-10-31 22:15:19,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:19,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118107229] [2024-10-31 22:15:19,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:19,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:19,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:19,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118107229] [2024-10-31 22:15:19,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118107229] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:19,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:19,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:19,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617855575] [2024-10-31 22:15:19,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:19,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:19,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:19,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:19,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:19,811 INFO L87 Difference]: Start difference. First operand 127 states and 154 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:20,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:20,796 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2024-10-31 22:15:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:20,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-10-31 22:15:20,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:20,798 INFO L225 Difference]: With dead ends: 151 [2024-10-31 22:15:20,798 INFO L226 Difference]: Without dead ends: 150 [2024-10-31 22:15:20,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:20,799 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 104 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:20,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 113 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-31 22:15:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-31 22:15:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2024-10-31 22:15:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 118 states have internal predecessors, (139), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:15:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 163 transitions. [2024-10-31 22:15:20,825 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 163 transitions. Word has length 33 [2024-10-31 22:15:20,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:20,827 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 163 transitions. [2024-10-31 22:15:20,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 163 transitions. [2024-10-31 22:15:20,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-31 22:15:20,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:20,828 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:20,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:15:20,829 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:20,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:20,829 INFO L85 PathProgramCache]: Analyzing trace with hash 185732939, now seen corresponding path program 1 times [2024-10-31 22:15:20,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:20,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38615693] [2024-10-31 22:15:20,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:20,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:20,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:20,947 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:20,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:20,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38615693] [2024-10-31 22:15:20,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38615693] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:20,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132009670] [2024-10-31 22:15:20,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:20,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:20,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:20,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:20,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:15:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:21,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:15:21,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:21,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:21,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:21,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132009670] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:21,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:21,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 9 [2024-10-31 22:15:21,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648798176] [2024-10-31 22:15:21,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:21,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:15:21,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:21,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:15:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:21,250 INFO L87 Difference]: Start difference. First operand 134 states and 163 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 22:15:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:21,500 INFO L93 Difference]: Finished difference Result 267 states and 325 transitions. [2024-10-31 22:15:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-31 22:15:21,501 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 33 [2024-10-31 22:15:21,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:21,504 INFO L225 Difference]: With dead ends: 267 [2024-10-31 22:15:21,504 INFO L226 Difference]: Without dead ends: 191 [2024-10-31 22:15:21,504 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:15:21,505 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 66 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:21,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 390 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-31 22:15:21,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 173. [2024-10-31 22:15:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 126 states have (on average 1.4523809523809523) internal successors, (183), 149 states have internal predecessors, (183), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 22:15:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 219 transitions. [2024-10-31 22:15:21,542 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 219 transitions. Word has length 33 [2024-10-31 22:15:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:21,542 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 219 transitions. [2024-10-31 22:15:21,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 10 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-31 22:15:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 219 transitions. [2024-10-31 22:15:21,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:15:21,543 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:21,543 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:21,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:15:21,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-31 22:15:21,744 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:21,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:21,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1005441480, now seen corresponding path program 1 times [2024-10-31 22:15:21,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:21,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427109611] [2024-10-31 22:15:21,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:21,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:21,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252342264] [2024-10-31 22:15:21,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:21,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:21,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:21,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:21,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:15:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:21,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:15:21,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:21,971 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 22:15:21,971 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:21,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:21,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427109611] [2024-10-31 22:15:21,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:21,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252342264] [2024-10-31 22:15:21,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252342264] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:21,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:21,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:21,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474854122] [2024-10-31 22:15:21,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:21,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:21,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:21,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:21,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:21,974 INFO L87 Difference]: Start difference. First operand 173 states and 219 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:22,144 INFO L93 Difference]: Finished difference Result 179 states and 224 transitions. [2024-10-31 22:15:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-10-31 22:15:22,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:22,146 INFO L225 Difference]: With dead ends: 179 [2024-10-31 22:15:22,147 INFO L226 Difference]: Without dead ends: 176 [2024-10-31 22:15:22,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:22,147 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 24 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:22,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 139 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:22,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2024-10-31 22:15:22,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2024-10-31 22:15:22,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 129 states have (on average 1.434108527131783) internal successors, (185), 152 states have internal predecessors, (185), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-31 22:15:22,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2024-10-31 22:15:22,170 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 34 [2024-10-31 22:15:22,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:22,170 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2024-10-31 22:15:22,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-31 22:15:22,170 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2024-10-31 22:15:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 22:15:22,171 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:22,171 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:22,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:15:22,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-31 22:15:22,376 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:22,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:22,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1132558923, now seen corresponding path program 1 times [2024-10-31 22:15:22,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:22,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432058640] [2024-10-31 22:15:22,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:22,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1220742166] [2024-10-31 22:15:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:22,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:22,393 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:22,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:15:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:22,449 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:22,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:15:22,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:22,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432058640] [2024-10-31 22:15:22,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:22,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220742166] [2024-10-31 22:15:22,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220742166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:22,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139781153] [2024-10-31 22:15:22,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:22,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:22,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:22,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:22,516 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:22,620 INFO L93 Difference]: Finished difference Result 213 states and 261 transitions. [2024-10-31 22:15:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:22,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2024-10-31 22:15:22,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:22,623 INFO L225 Difference]: With dead ends: 213 [2024-10-31 22:15:22,623 INFO L226 Difference]: Without dead ends: 203 [2024-10-31 22:15:22,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:22,624 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 82 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:22,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 144 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:22,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-10-31 22:15:22,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 185. [2024-10-31 22:15:22,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 140 states have (on average 1.3571428571428572) internal successors, (190), 159 states have internal predecessors, (190), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-31 22:15:22,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 230 transitions. [2024-10-31 22:15:22,653 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 230 transitions. Word has length 45 [2024-10-31 22:15:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:22,654 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 230 transitions. [2024-10-31 22:15:22,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:22,654 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 230 transitions. [2024-10-31 22:15:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-31 22:15:22,656 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:22,656 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:22,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:22,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-31 22:15:22,857 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:22,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:22,858 INFO L85 PathProgramCache]: Analyzing trace with hash 749588304, now seen corresponding path program 1 times [2024-10-31 22:15:22,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:22,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966338990] [2024-10-31 22:15:22,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:22,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1965052454] [2024-10-31 22:15:22,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:22,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:22,898 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:22,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:15:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:22,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:22,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:15:23,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:23,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966338990] [2024-10-31 22:15:23,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:23,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1965052454] [2024-10-31 22:15:23,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1965052454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:23,143 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:23,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-31 22:15:23,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212577031] [2024-10-31 22:15:23,143 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:23,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:23,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:23,145 INFO L87 Difference]: Start difference. First operand 185 states and 230 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:23,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:23,288 INFO L93 Difference]: Finished difference Result 281 states and 347 transitions. [2024-10-31 22:15:23,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:23,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-10-31 22:15:23,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:23,291 INFO L225 Difference]: With dead ends: 281 [2024-10-31 22:15:23,291 INFO L226 Difference]: Without dead ends: 277 [2024-10-31 22:15:23,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:23,292 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 67 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:23,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 186 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-10-31 22:15:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 245. [2024-10-31 22:15:23,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.3814432989690721) internal successors, (268), 213 states have internal predecessors, (268), 26 states have call successors, (26), 5 states have call predecessors, (26), 5 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-31 22:15:23,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 320 transitions. [2024-10-31 22:15:23,323 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 320 transitions. Word has length 46 [2024-10-31 22:15:23,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:23,323 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 320 transitions. [2024-10-31 22:15:23,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:23,324 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 320 transitions. [2024-10-31 22:15:23,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-31 22:15:23,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:23,325 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:23,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:23,525 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:23,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1118998551, now seen corresponding path program 1 times [2024-10-31 22:15:23,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961935509] [2024-10-31 22:15:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:23,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:23,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-31 22:15:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,643 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:15:23,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961935509] [2024-10-31 22:15:23,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961935509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:23,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:23,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:23,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799912366] [2024-10-31 22:15:23,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:23,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:23,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:23,646 INFO L87 Difference]: Start difference. First operand 245 states and 320 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:24,325 INFO L93 Difference]: Finished difference Result 256 states and 331 transitions. [2024-10-31 22:15:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 50 [2024-10-31 22:15:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:24,329 INFO L225 Difference]: With dead ends: 256 [2024-10-31 22:15:24,329 INFO L226 Difference]: Without dead ends: 239 [2024-10-31 22:15:24,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:24,332 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 51 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:24,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 135 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:15:24,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2024-10-31 22:15:24,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 230. [2024-10-31 22:15:24,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 181 states have (on average 1.4033149171270718) internal successors, (254), 200 states have internal predecessors, (254), 24 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-31 22:15:24,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2024-10-31 22:15:24,365 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 50 [2024-10-31 22:15:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:24,365 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2024-10-31 22:15:24,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2024-10-31 22:15:24,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-31 22:15:24,367 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:24,367 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:15:24,368 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:24,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash 287436800, now seen corresponding path program 1 times [2024-10-31 22:15:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920978477] [2024-10-31 22:15:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:24,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,488 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:24,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920978477] [2024-10-31 22:15:24,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920978477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:24,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256757732] [2024-10-31 22:15:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:24,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:24,500 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:24,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:15:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:15:24,566 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:24,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256757732] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:24,729 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:24,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-31 22:15:24,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539297811] [2024-10-31 22:15:24,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:24,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:24,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:24,731 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-31 22:15:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:24,978 INFO L93 Difference]: Finished difference Result 364 states and 468 transitions. [2024-10-31 22:15:24,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:24,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 54 [2024-10-31 22:15:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:24,981 INFO L225 Difference]: With dead ends: 364 [2024-10-31 22:15:24,981 INFO L226 Difference]: Without dead ends: 362 [2024-10-31 22:15:24,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:24,982 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 132 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:24,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 266 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:24,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-10-31 22:15:25,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 299. [2024-10-31 22:15:25,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 241 states have (on average 1.4190871369294606) internal successors, (342), 260 states have internal predecessors, (342), 33 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-31 22:15:25,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 408 transitions. [2024-10-31 22:15:25,021 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 408 transitions. Word has length 54 [2024-10-31 22:15:25,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:25,021 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 408 transitions. [2024-10-31 22:15:25,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-31 22:15:25,021 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 408 transitions. [2024-10-31 22:15:25,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-31 22:15:25,022 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:25,022 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:25,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:25,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 22:15:25,227 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:25,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:25,227 INFO L85 PathProgramCache]: Analyzing trace with hash 320559606, now seen corresponding path program 1 times [2024-10-31 22:15:25,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:25,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85176844] [2024-10-31 22:15:25,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:25,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:25,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:25,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:25,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85176844] [2024-10-31 22:15:25,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85176844] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:25,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387769494] [2024-10-31 22:15:25,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:25,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:25,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:25,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:25,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:15:25,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:15:25,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:25,535 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:15:25,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:25,682 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:25,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387769494] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:25,682 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:25,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2024-10-31 22:15:25,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825519975] [2024-10-31 22:15:25,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:25,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-31 22:15:25,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:25,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:15:25,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:15:25,684 INFO L87 Difference]: Start difference. First operand 299 states and 408 transitions. Second operand has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-31 22:15:26,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:26,045 INFO L93 Difference]: Finished difference Result 346 states and 451 transitions. [2024-10-31 22:15:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-31 22:15:26,046 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 55 [2024-10-31 22:15:26,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:26,048 INFO L225 Difference]: With dead ends: 346 [2024-10-31 22:15:26,048 INFO L226 Difference]: Without dead ends: 340 [2024-10-31 22:15:26,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=180, Invalid=522, Unknown=0, NotChecked=0, Total=702 [2024-10-31 22:15:26,049 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 91 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:26,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 492 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:26,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-31 22:15:26,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 322. [2024-10-31 22:15:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 262 states have (on average 1.3931297709923665) internal successors, (365), 281 states have internal predecessors, (365), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-31 22:15:26,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 431 transitions. [2024-10-31 22:15:26,085 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 431 transitions. Word has length 55 [2024-10-31 22:15:26,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:26,085 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 431 transitions. [2024-10-31 22:15:26,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.538461538461538) internal successors, (59), 14 states have internal predecessors, (59), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-31 22:15:26,085 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 431 transitions. [2024-10-31 22:15:26,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-31 22:15:26,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:26,086 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:26,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:26,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-31 22:15:26,287 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:26,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:26,287 INFO L85 PathProgramCache]: Analyzing trace with hash 770531943, now seen corresponding path program 1 times [2024-10-31 22:15:26,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:26,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225456742] [2024-10-31 22:15:26,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:26,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346064975] [2024-10-31 22:15:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:26,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:26,307 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:26,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:15:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:15:26,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:26,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:26,881 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:26,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225456742] [2024-10-31 22:15:26,881 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:26,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346064975] [2024-10-31 22:15:26,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346064975] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:26,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:15:26,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-31 22:15:26,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449260090] [2024-10-31 22:15:26,882 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:15:26,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:15:26,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:26,884 INFO L87 Difference]: Start difference. First operand 322 states and 431 transitions. Second operand has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-31 22:15:27,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:27,659 INFO L93 Difference]: Finished difference Result 367 states and 486 transitions. [2024-10-31 22:15:27,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:15:27,660 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 60 [2024-10-31 22:15:27,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:27,663 INFO L225 Difference]: With dead ends: 367 [2024-10-31 22:15:27,665 INFO L226 Difference]: Without dead ends: 361 [2024-10-31 22:15:27,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:15:27,667 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 222 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:27,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 231 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:15:27,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-10-31 22:15:27,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 325. [2024-10-31 22:15:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 265 states have (on average 1.3584905660377358) internal successors, (360), 284 states have internal predecessors, (360), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-31 22:15:27,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 426 transitions. [2024-10-31 22:15:27,711 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 426 transitions. Word has length 60 [2024-10-31 22:15:27,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:27,712 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 426 transitions. [2024-10-31 22:15:27,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-10-31 22:15:27,712 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 426 transitions. [2024-10-31 22:15:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-31 22:15:27,713 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:27,713 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:27,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-31 22:15:27,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:15:27,917 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:27,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:27,918 INFO L85 PathProgramCache]: Analyzing trace with hash -966584528, now seen corresponding path program 1 times [2024-10-31 22:15:27,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:27,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482378667] [2024-10-31 22:15:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:28,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:28,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:28,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:28,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482378667] [2024-10-31 22:15:28,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482378667] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:28,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910698099] [2024-10-31 22:15:28,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:28,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:28,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:28,088 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:28,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:15:28,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:15:28,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-31 22:15:28,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:15:28,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910698099] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:28,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:28,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 12 [2024-10-31 22:15:28,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056270875] [2024-10-31 22:15:28,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:28,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-31 22:15:28,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:28,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-31 22:15:28,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:15:28,393 INFO L87 Difference]: Start difference. First operand 325 states and 426 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-31 22:15:28,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:28,656 INFO L93 Difference]: Finished difference Result 488 states and 640 transitions. [2024-10-31 22:15:28,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 22:15:28,656 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 68 [2024-10-31 22:15:28,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:28,659 INFO L225 Difference]: With dead ends: 488 [2024-10-31 22:15:28,659 INFO L226 Difference]: Without dead ends: 338 [2024-10-31 22:15:28,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2024-10-31 22:15:28,660 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 48 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:28,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 608 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:28,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-10-31 22:15:28,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 331. [2024-10-31 22:15:28,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 271 states have (on average 1.3468634686346863) internal successors, (365), 290 states have internal predecessors, (365), 33 states have call successors, (33), 7 states have call predecessors, (33), 7 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-10-31 22:15:28,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 431 transitions. [2024-10-31 22:15:28,699 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 431 transitions. Word has length 68 [2024-10-31 22:15:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:28,699 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 431 transitions. [2024-10-31 22:15:28,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 4 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-10-31 22:15:28,700 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 431 transitions. [2024-10-31 22:15:28,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 22:15:28,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:28,701 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:15:28,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:28,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:28,902 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:28,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash -281646737, now seen corresponding path program 2 times [2024-10-31 22:15:28,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:28,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990987443] [2024-10-31 22:15:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:28,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115128586] [2024-10-31 22:15:28,925 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:15:28,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:28,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:28,930 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:28,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:15:28,994 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:15:28,995 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:15:28,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:28,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:29,078 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:29,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:29,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:29,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990987443] [2024-10-31 22:15:29,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:29,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115128586] [2024-10-31 22:15:29,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115128586] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:29,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:29,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-31 22:15:29,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706152867] [2024-10-31 22:15:29,165 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:29,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:29,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:29,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:29,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:29,168 INFO L87 Difference]: Start difference. First operand 331 states and 431 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:15:29,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:29,341 INFO L93 Difference]: Finished difference Result 480 states and 615 transitions. [2024-10-31 22:15:29,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:29,341 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-10-31 22:15:29,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:29,344 INFO L225 Difference]: With dead ends: 480 [2024-10-31 22:15:29,344 INFO L226 Difference]: Without dead ends: 476 [2024-10-31 22:15:29,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:29,345 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 169 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:29,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 194 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:29,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-10-31 22:15:29,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 362. [2024-10-31 22:15:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 298 states have (on average 1.325503355704698) internal successors, (395), 317 states have internal predecessors, (395), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-10-31 22:15:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 469 transitions. [2024-10-31 22:15:29,394 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 469 transitions. Word has length 72 [2024-10-31 22:15:29,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:29,394 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 469 transitions. [2024-10-31 22:15:29,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:15:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 469 transitions. [2024-10-31 22:15:29,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-31 22:15:29,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:29,396 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:29,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:29,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:29,596 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:29,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1910905065, now seen corresponding path program 1 times [2024-10-31 22:15:29,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:29,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572333069] [2024-10-31 22:15:29,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:29,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:15:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:15:29,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,711 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-31 22:15:29,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:29,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572333069] [2024-10-31 22:15:29,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572333069] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:29,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:29,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:29,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964641119] [2024-10-31 22:15:29,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:29,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:29,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:29,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:29,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:29,714 INFO L87 Difference]: Start difference. First operand 362 states and 469 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:29,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:29,847 INFO L93 Difference]: Finished difference Result 362 states and 469 transitions. [2024-10-31 22:15:29,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:29,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 79 [2024-10-31 22:15:29,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:29,849 INFO L225 Difference]: With dead ends: 362 [2024-10-31 22:15:29,849 INFO L226 Difference]: Without dead ends: 361 [2024-10-31 22:15:29,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:29,850 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 2 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:29,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 118 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-10-31 22:15:29,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-10-31 22:15:29,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 298 states have (on average 1.3120805369127517) internal successors, (391), 316 states have internal predecessors, (391), 37 states have call successors, (37), 7 states have call predecessors, (37), 7 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-10-31 22:15:29,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 465 transitions. [2024-10-31 22:15:29,891 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 465 transitions. Word has length 79 [2024-10-31 22:15:29,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:29,891 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 465 transitions. [2024-10-31 22:15:29,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:29,892 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 465 transitions. [2024-10-31 22:15:29,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-10-31 22:15:29,892 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:29,892 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:29,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:15:29,893 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:29,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:29,893 INFO L85 PathProgramCache]: Analyzing trace with hash -891485006, now seen corresponding path program 1 times [2024-10-31 22:15:29,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:29,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327057971] [2024-10-31 22:15:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:29,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:30,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:15:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:15:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,126 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-31 22:15:30,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:30,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327057971] [2024-10-31 22:15:30,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327057971] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:30,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:30,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:30,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711367272] [2024-10-31 22:15:30,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:30,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:30,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:30,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:30,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:30,129 INFO L87 Difference]: Start difference. First operand 361 states and 465 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:30,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:30,460 INFO L93 Difference]: Finished difference Result 561 states and 750 transitions. [2024-10-31 22:15:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 80 [2024-10-31 22:15:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:30,464 INFO L225 Difference]: With dead ends: 561 [2024-10-31 22:15:30,464 INFO L226 Difference]: Without dead ends: 560 [2024-10-31 22:15:30,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:30,465 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 126 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:30,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 221 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:30,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-10-31 22:15:30,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 499. [2024-10-31 22:15:30,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 422 states have (on average 1.3696682464454977) internal successors, (578), 440 states have internal predecessors, (578), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:15:30,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 680 transitions. [2024-10-31 22:15:30,521 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 680 transitions. Word has length 80 [2024-10-31 22:15:30,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:30,522 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 680 transitions. [2024-10-31 22:15:30,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-31 22:15:30,522 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 680 transitions. [2024-10-31 22:15:30,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-10-31 22:15:30,523 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:30,523 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:30,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-31 22:15:30,524 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:30,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1866231285, now seen corresponding path program 1 times [2024-10-31 22:15:30,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:30,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127349371] [2024-10-31 22:15:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:30,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:30,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:30,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:15:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:15:30,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:30,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:30,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127349371] [2024-10-31 22:15:30,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127349371] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:30,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112161568] [2024-10-31 22:15:30,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:30,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:30,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:30,744 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:30,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 22:15:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:30,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:30,810 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-31 22:15:31,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:31,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112161568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:31,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:31,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-31 22:15:31,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530130961] [2024-10-31 22:15:31,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:31,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:31,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:31,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:31,088 INFO L87 Difference]: Start difference. First operand 499 states and 680 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:31,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:31,512 INFO L93 Difference]: Finished difference Result 544 states and 729 transitions. [2024-10-31 22:15:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:31,513 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2024-10-31 22:15:31,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:31,517 INFO L225 Difference]: With dead ends: 544 [2024-10-31 22:15:31,517 INFO L226 Difference]: Without dead ends: 543 [2024-10-31 22:15:31,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:15:31,518 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 86 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:31,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 125 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:15:31,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-10-31 22:15:31,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 511. [2024-10-31 22:15:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 434 states have (on average 1.359447004608295) internal successors, (590), 452 states have internal predecessors, (590), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:15:31,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 692 transitions. [2024-10-31 22:15:31,590 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 692 transitions. Word has length 81 [2024-10-31 22:15:31,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:31,590 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 692 transitions. [2024-10-31 22:15:31,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:31,591 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 692 transitions. [2024-10-31 22:15:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:15:31,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:31,592 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:31,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:31,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-31 22:15:31,792 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:31,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:31,793 INFO L85 PathProgramCache]: Analyzing trace with hash -2018594860, now seen corresponding path program 1 times [2024-10-31 22:15:31,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:31,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302347891] [2024-10-31 22:15:31,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:31,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:31,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:31,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:31,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:15:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:15:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,029 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:32,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:32,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302347891] [2024-10-31 22:15:32,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302347891] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:32,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861022086] [2024-10-31 22:15:32,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:32,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:32,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:32,033 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:32,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 22:15:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:32,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:32,107 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:32,268 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-31 22:15:32,268 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:15:32,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861022086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:32,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:32,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-31 22:15:32,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710620556] [2024-10-31 22:15:32,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:32,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:32,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:32,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:32,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:32,271 INFO L87 Difference]: Start difference. First operand 511 states and 692 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:32,545 INFO L93 Difference]: Finished difference Result 526 states and 705 transitions. [2024-10-31 22:15:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:15:32,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 82 [2024-10-31 22:15:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:32,548 INFO L225 Difference]: With dead ends: 526 [2024-10-31 22:15:32,548 INFO L226 Difference]: Without dead ends: 524 [2024-10-31 22:15:32,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:32,549 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 54 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:32,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 93 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:15:32,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2024-10-31 22:15:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 515. [2024-10-31 22:15:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 438 states have (on average 1.3470319634703196) internal successors, (590), 456 states have internal predecessors, (590), 51 states have call successors, (51), 7 states have call predecessors, (51), 7 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:15:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 692 transitions. [2024-10-31 22:15:32,627 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 692 transitions. Word has length 82 [2024-10-31 22:15:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:32,627 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 692 transitions. [2024-10-31 22:15:32,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:32,628 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 692 transitions. [2024-10-31 22:15:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-10-31 22:15:32,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:32,629 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:32,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-31 22:15:32,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-31 22:15:32,837 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:32,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:32,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1041574332, now seen corresponding path program 1 times [2024-10-31 22:15:32,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:32,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73917007] [2024-10-31 22:15:32,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:32,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:33,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:15:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:15:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-31 22:15:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-31 22:15:33,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:33,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73917007] [2024-10-31 22:15:33,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73917007] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:33,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078626660] [2024-10-31 22:15:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:33,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:33,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:33,061 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:33,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 22:15:33,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:33,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:15:33,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:33,257 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 142 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:15:33,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:33,430 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-10-31 22:15:33,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078626660] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:33,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:33,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 13 [2024-10-31 22:15:33,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644479675] [2024-10-31 22:15:33,430 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:33,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-31 22:15:33,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:33,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-31 22:15:33,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:15:33,432 INFO L87 Difference]: Start difference. First operand 515 states and 692 transitions. Second operand has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-31 22:15:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:33,788 INFO L93 Difference]: Finished difference Result 551 states and 728 transitions. [2024-10-31 22:15:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-31 22:15:33,789 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 86 [2024-10-31 22:15:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:33,791 INFO L225 Difference]: With dead ends: 551 [2024-10-31 22:15:33,792 INFO L226 Difference]: Without dead ends: 539 [2024-10-31 22:15:33,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 181 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2024-10-31 22:15:33,793 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 63 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:33,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 520 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:15:33,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-10-31 22:15:33,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 529. [2024-10-31 22:15:33,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 451 states have (on average 1.334811529933481) internal successors, (602), 469 states have internal predecessors, (602), 51 states have call successors, (51), 8 states have call predecessors, (51), 8 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:15:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 704 transitions. [2024-10-31 22:15:33,866 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 704 transitions. Word has length 86 [2024-10-31 22:15:33,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:33,867 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 704 transitions. [2024-10-31 22:15:33,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 4 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-10-31 22:15:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 704 transitions. [2024-10-31 22:15:33,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-31 22:15:33,869 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:33,869 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:33,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:34,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-31 22:15:34,074 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:34,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:34,075 INFO L85 PathProgramCache]: Analyzing trace with hash 595065312, now seen corresponding path program 1 times [2024-10-31 22:15:34,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:34,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380834074] [2024-10-31 22:15:34,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:34,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:34,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909442778] [2024-10-31 22:15:34,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:34,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:34,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:34,109 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:34,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-31 22:15:34,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:34,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:15:34,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:34,767 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:34,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:35,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:35,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380834074] [2024-10-31 22:15:35,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:35,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909442778] [2024-10-31 22:15:35,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909442778] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:35,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:35,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-31 22:15:35,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467523648] [2024-10-31 22:15:35,454 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:35,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:15:35,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:35,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:15:35,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:15:35,456 INFO L87 Difference]: Start difference. First operand 529 states and 704 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:15:36,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:36,228 INFO L93 Difference]: Finished difference Result 598 states and 796 transitions. [2024-10-31 22:15:36,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:15:36,229 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-10-31 22:15:36,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:36,232 INFO L225 Difference]: With dead ends: 598 [2024-10-31 22:15:36,233 INFO L226 Difference]: Without dead ends: 597 [2024-10-31 22:15:36,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:15:36,234 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 65 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:36,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 363 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:15:36,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-10-31 22:15:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 569. [2024-10-31 22:15:36,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 487 states have (on average 1.3305954825462012) internal successors, (648), 505 states have internal predecessors, (648), 55 states have call successors, (55), 8 states have call predecessors, (55), 8 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-31 22:15:36,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 758 transitions. [2024-10-31 22:15:36,307 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 758 transitions. Word has length 87 [2024-10-31 22:15:36,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:36,307 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 758 transitions. [2024-10-31 22:15:36,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:15:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 758 transitions. [2024-10-31 22:15:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-10-31 22:15:36,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:36,310 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:36,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:36,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-31 22:15:36,510 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:36,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1267155581, now seen corresponding path program 1 times [2024-10-31 22:15:36,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:36,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764296443] [2024-10-31 22:15:36,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:36,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:36,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:36,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774555684] [2024-10-31 22:15:36,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:36,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:36,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:36,551 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:36,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 22:15:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:36,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-31 22:15:36,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:37,201 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:37,201 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:37,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:37,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764296443] [2024-10-31 22:15:37,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:15:37,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774555684] [2024-10-31 22:15:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774555684] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:37,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:15:37,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-31 22:15:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239726801] [2024-10-31 22:15:37,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:37,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 22:15:37,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:37,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:15:37,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:15:37,709 INFO L87 Difference]: Start difference. First operand 569 states and 758 transitions. Second operand has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:15:38,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:38,197 INFO L93 Difference]: Finished difference Result 625 states and 836 transitions. [2024-10-31 22:15:38,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:15:38,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2024-10-31 22:15:38,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:38,200 INFO L225 Difference]: With dead ends: 625 [2024-10-31 22:15:38,201 INFO L226 Difference]: Without dead ends: 624 [2024-10-31 22:15:38,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-31 22:15:38,202 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 65 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:38,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 263 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:15:38,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-10-31 22:15:38,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 609. [2024-10-31 22:15:38,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 523 states have (on average 1.3269598470363289) internal successors, (694), 541 states have internal predecessors, (694), 59 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-31 22:15:38,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 812 transitions. [2024-10-31 22:15:38,270 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 812 transitions. Word has length 88 [2024-10-31 22:15:38,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:38,270 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 812 transitions. [2024-10-31 22:15:38,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.375) internal successors, (51), 9 states have internal predecessors, (51), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-31 22:15:38,271 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 812 transitions. [2024-10-31 22:15:38,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-31 22:15:38,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:38,272 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:38,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-31 22:15:38,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-31 22:15:38,476 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:38,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:38,477 INFO L85 PathProgramCache]: Analyzing trace with hash 627117442, now seen corresponding path program 1 times [2024-10-31 22:15:38,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:38,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613525462] [2024-10-31 22:15:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:38,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:38,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:15:38,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 22:15:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:15:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:15:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 22:15:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-31 22:15:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-31 22:15:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:15:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-10-31 22:15:38,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:38,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613525462] [2024-10-31 22:15:38,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613525462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:38,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:38,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:38,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077957564] [2024-10-31 22:15:38,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:38,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:15:38,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:38,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:15:38,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:15:38,628 INFO L87 Difference]: Start difference. First operand 609 states and 812 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:40,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:15:40,401 INFO L93 Difference]: Finished difference Result 614 states and 819 transitions. [2024-10-31 22:15:40,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:40,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 89 [2024-10-31 22:15:40,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:15:40,405 INFO L225 Difference]: With dead ends: 614 [2024-10-31 22:15:40,406 INFO L226 Difference]: Without dead ends: 613 [2024-10-31 22:15:40,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:15:40,407 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 89 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:15:40,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 112 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-31 22:15:40,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-10-31 22:15:40,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 608. [2024-10-31 22:15:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 523 states have (on average 1.311663479923518) internal successors, (686), 540 states have internal predecessors, (686), 59 states have call successors, (59), 8 states have call predecessors, (59), 8 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-10-31 22:15:40,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 804 transitions. [2024-10-31 22:15:40,482 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 804 transitions. Word has length 89 [2024-10-31 22:15:40,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:15:40,483 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 804 transitions. [2024-10-31 22:15:40,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-10-31 22:15:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 804 transitions. [2024-10-31 22:15:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-31 22:15:40,484 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:15:40,485 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:40,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-31 22:15:40,485 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2024-10-31 22:15:40,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:40,486 INFO L85 PathProgramCache]: Analyzing trace with hash -2034195681, now seen corresponding path program 1 times [2024-10-31 22:15:40,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:40,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10310258] [2024-10-31 22:15:40,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:40,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:40,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:15:40,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718807562] [2024-10-31 22:15:40,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:40,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:40,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:40,517 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:40,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1494f2b0-09c3-433a-857c-82ee2c1056e9/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-31 22:15:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:40,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-31 22:15:40,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:41,794 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:15:41,794 INFO L311 TraceCheckSpWp]: Computing backward predicates...