./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/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_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/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_bb8c8edb-af29-4250-b179-055de898318a/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 174cfd8cb6426614b32355f584844d4fc6265ba8fd3c3cda6c788ade64de4fc0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:12:29,948 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:12:30,011 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:12:30,016 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:12:30,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:12:30,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:12:30,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:12:30,042 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:12:30,043 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:12:30,043 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:12:30,044 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:12:30,044 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:12:30,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:12:30,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:12:30,046 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:12:30,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:12:30,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:12:30,048 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:12:30,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:12:30,049 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:12:30,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:12:30,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:12:30,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:12:30,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:12:30,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:12:30,052 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:12:30,052 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:12:30,052 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:12:30,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:12:30,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:12:30,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:12:30,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:12:30,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:12:30,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:12:30,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:30,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:12:30,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:12:30,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:12:30,057 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:12:30,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:12:30,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:12:30,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:12:30,059 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:12:30,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:12:30,060 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_bb8c8edb-af29-4250-b179-055de898318a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 174cfd8cb6426614b32355f584844d4fc6265ba8fd3c3cda6c788ade64de4fc0 [2024-10-31 22:12:30,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:12:30,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:12:30,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:12:30,400 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:12:30,401 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:12:30,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c Unable to find full path for "g++" [2024-10-31 22:12:32,429 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:12:32,640 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:12:32,644 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/sv-benchmarks/c/nla-digbench-scaling/hard2_valuebound10.c [2024-10-31 22:12:32,654 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/data/1cfaecb43/8f3245de09374bca9b1efde52f0c8602/FLAGc1c0c3b3f [2024-10-31 22:12:32,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/data/1cfaecb43/8f3245de09374bca9b1efde52f0c8602 [2024-10-31 22:12:32,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:12:32,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:12:32,997 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:32,997 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:12:33,005 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:12:33,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:32" (1/1) ... [2024-10-31 22:12:33,009 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45a5c82a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33, skipping insertion in model container [2024-10-31 22:12:33,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:12:32" (1/1) ... [2024-10-31 22:12:33,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:12:33,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:33,251 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:12:33,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:12:33,288 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:12:33,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33 WrapperNode [2024-10-31 22:12:33,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:12:33,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:33,290 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:12:33,290 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:12:33,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,328 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 94 [2024-10-31 22:12:33,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:12:33,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:12:33,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:12:33,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:12:33,346 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,346 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,365 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-10-31 22:12:33,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,380 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,381 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:12:33,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:12:33,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:12:33,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:12:33,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (1/1) ... [2024-10-31 22:12:33,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:12:33,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:33,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:12:33,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:12:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:12:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:12:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:12:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:12:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:12:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:12:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:12:33,559 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:12:33,563 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:12:33,985 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-10-31 22:12:33,985 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:12:34,006 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:12:34,009 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:12:34,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:34 BoogieIcfgContainer [2024-10-31 22:12:34,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:12:34,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:12:34,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:12:34,020 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:12:34,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:12:32" (1/3) ... [2024-10-31 22:12:34,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6141145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:34, skipping insertion in model container [2024-10-31 22:12:34,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:12:33" (2/3) ... [2024-10-31 22:12:34,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6141145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:12:34, skipping insertion in model container [2024-10-31 22:12:34,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:12:34" (3/3) ... [2024-10-31 22:12:34,025 INFO L112 eAbstractionObserver]: Analyzing ICFG hard2_valuebound10.c [2024-10-31 22:12:34,044 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:12:34,044 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-10-31 22:12:34,123 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:12:34,130 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;@311e4225, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:12:34,130 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-10-31 22:12:34,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 65 states have internal predecessors, (74), 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 22:12:34,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 22:12:34,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:34,142 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:34,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:34,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1804971306, now seen corresponding path program 1 times [2024-10-31 22:12:34,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:34,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853882518] [2024-10-31 22:12:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:34,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:34,373 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 22:12:34,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:34,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853882518] [2024-10-31 22:12:34,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853882518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:34,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:34,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:34,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533220034] [2024-10-31 22:12:34,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:34,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:12:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:34,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:12:34,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:12:34,450 INFO L87 Difference]: Start difference. First operand has 74 states, 41 states have (on average 1.8048780487804879) internal successors, (74), 65 states have internal predecessors, (74), 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 3.5) internal successors, (7), 2 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 22:12:34,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:34,490 INFO L93 Difference]: Finished difference Result 144 states and 178 transitions. [2024-10-31 22:12:34,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:12:34,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 22:12:34,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:34,525 INFO L225 Difference]: With dead ends: 144 [2024-10-31 22:12:34,525 INFO L226 Difference]: Without dead ends: 66 [2024-10-31 22:12:34,529 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 22:12:34,536 INFO L432 NwaCegarLoop]: 81 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, 81 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 22:12:34,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:12:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-31 22:12:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-31 22:12:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 36 states have (on average 1.7222222222222223) internal successors, (62), 59 states have internal predecessors, (62), 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 22:12:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2024-10-31 22:12:34,597 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 7 [2024-10-31 22:12:34,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:34,598 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2024-10-31 22:12:34,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 22:12:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2024-10-31 22:12:34,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-31 22:12:34,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:34,603 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:34,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:12:34,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:34,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:34,605 INFO L85 PathProgramCache]: Analyzing trace with hash -589934396, now seen corresponding path program 1 times [2024-10-31 22:12:34,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:34,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72037827] [2024-10-31 22:12:34,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:34,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:34,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [354064332] [2024-10-31 22:12:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:34,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:34,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:34,679 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:34,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:12:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:34,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:12:34,761 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:34,872 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 22:12:34,873 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:34,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:34,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72037827] [2024-10-31 22:12:34,874 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:34,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354064332] [2024-10-31 22:12:34,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354064332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:34,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:34,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69831953] [2024-10-31 22:12:34,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:34,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:34,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:34,884 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 22:12:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:35,045 INFO L93 Difference]: Finished difference Result 138 states and 159 transitions. [2024-10-31 22:12:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:35,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16 [2024-10-31 22:12:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:35,050 INFO L225 Difference]: With dead ends: 138 [2024-10-31 22:12:35,050 INFO L226 Difference]: Without dead ends: 89 [2024-10-31 22:12:35,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 22:12:35,054 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 16 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:35,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 97 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:35,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-10-31 22:12:35,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-10-31 22:12:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 52 states have (on average 1.6346153846153846) internal successors, (85), 75 states have internal predecessors, (85), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:12:35,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 105 transitions. [2024-10-31 22:12:35,083 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 105 transitions. Word has length 16 [2024-10-31 22:12:35,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:35,085 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 105 transitions. [2024-10-31 22:12:35,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 22:12:35,085 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 105 transitions. [2024-10-31 22:12:35,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-31 22:12:35,086 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:35,086 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:35,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:12:35,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:35,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:35,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1036301913, now seen corresponding path program 1 times [2024-10-31 22:12:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:35,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704640048] [2024-10-31 22:12:35,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:35,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,502 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 22:12:35,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:35,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704640048] [2024-10-31 22:12:35,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704640048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:35,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:35,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:35,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148030855] [2024-10-31 22:12:35,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:35,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:35,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:35,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:35,513 INFO L87 Difference]: Start difference. First operand 87 states and 105 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, (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 22:12:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:35,609 INFO L93 Difference]: Finished difference Result 97 states and 112 transitions. [2024-10-31 22:12:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:35,612 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, (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 24 [2024-10-31 22:12:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:35,615 INFO L225 Difference]: With dead ends: 97 [2024-10-31 22:12:35,615 INFO L226 Difference]: Without dead ends: 95 [2024-10-31 22:12:35,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 22:12:35,616 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 17 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:35,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 108 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:35,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-31 22:12:35,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 87. [2024-10-31 22:12:35,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 75 states have internal predecessors, (83), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 22:12:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 103 transitions. [2024-10-31 22:12:35,636 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 103 transitions. Word has length 24 [2024-10-31 22:12:35,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:35,637 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 103 transitions. [2024-10-31 22:12:35,637 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, (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 22:12:35,637 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 103 transitions. [2024-10-31 22:12:35,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-31 22:12:35,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:35,638 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:35,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:12:35,639 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:35,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2060586917, now seen corresponding path program 1 times [2024-10-31 22:12:35,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:35,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274372372] [2024-10-31 22:12:35,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:35,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:35,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1591983540] [2024-10-31 22:12:35,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:35,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:35,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:35,694 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:35,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:12:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:35,764 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:12:35,766 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:35,810 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 22:12:35,810 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:35,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274372372] [2024-10-31 22:12:35,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:35,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591983540] [2024-10-31 22:12:35,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591983540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:35,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:35,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:35,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656675849] [2024-10-31 22:12:35,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:35,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:35,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:35,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:35,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:35,813 INFO L87 Difference]: Start difference. First operand 87 states and 103 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 22:12:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:35,995 INFO L93 Difference]: Finished difference Result 122 states and 147 transitions. [2024-10-31 22:12:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:35,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 25 [2024-10-31 22:12:35,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:35,997 INFO L225 Difference]: With dead ends: 122 [2024-10-31 22:12:35,998 INFO L226 Difference]: Without dead ends: 118 [2024-10-31 22:12:35,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 22:12:35,999 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 39 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:36,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 90 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:12:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-10-31 22:12:36,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 104. [2024-10-31 22:12:36,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 90 states have internal predecessors, (106), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:12:36,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 130 transitions. [2024-10-31 22:12:36,033 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 130 transitions. Word has length 25 [2024-10-31 22:12:36,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:36,033 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 130 transitions. [2024-10-31 22:12:36,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 22:12:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 130 transitions. [2024-10-31 22:12:36,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-31 22:12:36,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:36,034 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 22:12:36,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:12:36,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:36,235 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:36,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:36,236 INFO L85 PathProgramCache]: Analyzing trace with hash 244106439, now seen corresponding path program 1 times [2024-10-31 22:12:36,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:36,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79279577] [2024-10-31 22:12:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:36,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:36,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:36,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:36,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:36,556 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 22:12:36,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79279577] [2024-10-31 22:12:36,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79279577] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:36,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:36,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:12:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12023091] [2024-10-31 22:12:36,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:36,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:12:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:36,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:12:36,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:36,562 INFO L87 Difference]: Start difference. First operand 104 states and 130 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:12:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:37,141 INFO L93 Difference]: Finished difference Result 120 states and 144 transitions. [2024-10-31 22:12:37,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:37,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-10-31 22:12:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:37,143 INFO L225 Difference]: With dead ends: 120 [2024-10-31 22:12:37,143 INFO L226 Difference]: Without dead ends: 119 [2024-10-31 22:12:37,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:12:37,144 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 214 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:37,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 99 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:12:37,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-31 22:12:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 108. [2024-10-31 22:12:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 71 states have (on average 1.5492957746478873) internal successors, (110), 94 states have internal predecessors, (110), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:12:37,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 134 transitions. [2024-10-31 22:12:37,214 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 134 transitions. Word has length 27 [2024-10-31 22:12:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:37,214 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 134 transitions. [2024-10-31 22:12:37,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:12:37,215 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 134 transitions. [2024-10-31 22:12:37,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-31 22:12:37,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:37,216 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 22:12:37,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:12:37,219 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:37,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:37,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1022634896, now seen corresponding path program 1 times [2024-10-31 22:12:37,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:37,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668371735] [2024-10-31 22:12:37,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:37,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:37,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:37,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:37,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:37,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:37,404 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 22:12:37,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:37,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668371735] [2024-10-31 22:12:37,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668371735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:37,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:37,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:12:37,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926601169] [2024-10-31 22:12:37,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:37,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:37,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:37,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:37,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:37,411 INFO L87 Difference]: Start difference. First operand 108 states and 134 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 22:12:37,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:37,842 INFO L93 Difference]: Finished difference Result 120 states and 147 transitions. [2024-10-31 22:12:37,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:37,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 22:12:37,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:37,844 INFO L225 Difference]: With dead ends: 120 [2024-10-31 22:12:37,844 INFO L226 Difference]: Without dead ends: 119 [2024-10-31 22:12:37,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 22:12:37,845 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 51 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:37,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 159 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:12:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-10-31 22:12:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 114. [2024-10-31 22:12:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 77 states have (on average 1.4935064935064934) internal successors, (115), 100 states have internal predecessors, (115), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-10-31 22:12:37,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-10-31 22:12:37,862 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 28 [2024-10-31 22:12:37,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:37,862 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-10-31 22:12:37,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 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 22:12:37,863 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-10-31 22:12:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-31 22:12:37,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:37,864 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:37,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:12:37,864 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:37,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:37,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1699862761, now seen corresponding path program 1 times [2024-10-31 22:12:37,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:37,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091739983] [2024-10-31 22:12:37,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:37,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:37,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:37,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749096140] [2024-10-31 22:12:37,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:37,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:37,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:37,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:37,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:12:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:37,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:12:37,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:38,103 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:12:38,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:38,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:38,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091739983] [2024-10-31 22:12:38,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:38,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749096140] [2024-10-31 22:12:38,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749096140] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:38,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:38,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967061557] [2024-10-31 22:12:38,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:38,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:38,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:38,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:38,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:38,107 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 22:12:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:38,245 INFO L93 Difference]: Finished difference Result 125 states and 154 transitions. [2024-10-31 22:12:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:38,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 39 [2024-10-31 22:12:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:38,247 INFO L225 Difference]: With dead ends: 125 [2024-10-31 22:12:38,248 INFO L226 Difference]: Without dead ends: 115 [2024-10-31 22:12:38,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 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 22:12:38,251 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 38 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:38,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 114 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-31 22:12:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2024-10-31 22:12:38,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 80 states have (on average 1.4125) internal successors, (113), 99 states have internal predecessors, (113), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-31 22:12:38,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 141 transitions. [2024-10-31 22:12:38,272 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 141 transitions. Word has length 39 [2024-10-31 22:12:38,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:38,273 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 141 transitions. [2024-10-31 22:12:38,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 22:12:38,273 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 141 transitions. [2024-10-31 22:12:38,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-31 22:12:38,274 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:38,275 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:38,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:12:38,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:38,475 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:38,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:38,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1156138093, now seen corresponding path program 1 times [2024-10-31 22:12:38,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:38,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417151404] [2024-10-31 22:12:38,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:38,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:38,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1711810706] [2024-10-31 22:12:38,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:38,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:38,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:38,512 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:38,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:12:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:38,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:12:38,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:12:38,707 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:39,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:39,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417151404] [2024-10-31 22:12:39,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:39,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711810706] [2024-10-31 22:12:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711810706] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:39,429 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:39,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2024-10-31 22:12:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026854557] [2024-10-31 22:12:39,429 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:39,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:39,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:39,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:39,431 INFO L87 Difference]: Start difference. First operand 115 states and 141 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 22:12:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:39,602 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2024-10-31 22:12:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:39,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 40 [2024-10-31 22:12:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:39,605 INFO L225 Difference]: With dead ends: 191 [2024-10-31 22:12:39,606 INFO L226 Difference]: Without dead ends: 187 [2024-10-31 22:12:39,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:39,607 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 43 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:39,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 125 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-31 22:12:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 175. [2024-10-31 22:12:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 131 states have (on average 1.4198473282442747) internal successors, (186), 150 states have internal predecessors, (186), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-31 22:12:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 232 transitions. [2024-10-31 22:12:39,631 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 232 transitions. Word has length 40 [2024-10-31 22:12:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:39,632 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 232 transitions. [2024-10-31 22:12:39,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 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 22:12:39,632 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 232 transitions. [2024-10-31 22:12:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-31 22:12:39,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:39,634 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] [2024-10-31 22:12:39,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:12:39,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:39,838 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:39,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:39,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1891489937, now seen corresponding path program 1 times [2024-10-31 22:12:39,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:39,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586458519] [2024-10-31 22:12:39,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:39,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:12:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,085 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 22:12:40,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:40,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586458519] [2024-10-31 22:12:40,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586458519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:40,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:40,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 22:12:40,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422996639] [2024-10-31 22:12:40,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:40,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:12:40,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:40,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:12:40,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:40,089 INFO L87 Difference]: Start difference. First operand 175 states and 232 transitions. Second operand has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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 22:12:40,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:40,581 INFO L93 Difference]: Finished difference Result 187 states and 244 transitions. [2024-10-31 22:12:40,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:40,582 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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 44 [2024-10-31 22:12:40,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:40,583 INFO L225 Difference]: With dead ends: 187 [2024-10-31 22:12:40,583 INFO L226 Difference]: Without dead ends: 186 [2024-10-31 22:12:40,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:12:40,584 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 231 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:40,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 117 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:12:40,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-10-31 22:12:40,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 176. [2024-10-31 22:12:40,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 132 states have (on average 1.4166666666666667) internal successors, (187), 151 states have internal predecessors, (187), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-10-31 22:12:40,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 233 transitions. [2024-10-31 22:12:40,613 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 233 transitions. Word has length 44 [2024-10-31 22:12:40,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:40,616 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 233 transitions. [2024-10-31 22:12:40,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 7 states have internal predecessors, (22), 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 22:12:40,616 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 233 transitions. [2024-10-31 22:12:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 22:12:40,620 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:40,620 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] [2024-10-31 22:12:40,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:12:40,620 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:40,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:40,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1493353966, now seen corresponding path program 1 times [2024-10-31 22:12:40,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:40,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43320755] [2024-10-31 22:12:40,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:40,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 22:12:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:40,749 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 22:12:40,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:40,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43320755] [2024-10-31 22:12:40,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43320755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:40,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:40,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:12:40,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130021945] [2024-10-31 22:12:40,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:40,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:40,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:40,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:40,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:40,752 INFO L87 Difference]: Start difference. First operand 176 states and 233 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 22:12:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:40,901 INFO L93 Difference]: Finished difference Result 181 states and 237 transitions. [2024-10-31 22:12:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 22:12:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:40,915 INFO L225 Difference]: With dead ends: 181 [2024-10-31 22:12:40,915 INFO L226 Difference]: Without dead ends: 166 [2024-10-31 22:12:40,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:12:40,916 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 4 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:40,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 112 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:40,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-10-31 22:12:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-10-31 22:12:40,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 124 states have (on average 1.435483870967742) internal successors, (178), 143 states have internal predecessors, (178), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-31 22:12:40,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 220 transitions. [2024-10-31 22:12:40,938 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 220 transitions. Word has length 45 [2024-10-31 22:12:40,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:40,938 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 220 transitions. [2024-10-31 22:12:40,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 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 22:12:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 220 transitions. [2024-10-31 22:12:40,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-31 22:12:40,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:40,940 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:40,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:12:40,940 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:40,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -467908226, now seen corresponding path program 1 times [2024-10-31 22:12:40,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:40,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307293835] [2024-10-31 22:12:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:40,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:41,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:41,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:12:41,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:41,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307293835] [2024-10-31 22:12:41,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307293835] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:41,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829522595] [2024-10-31 22:12:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:41,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:41,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:41,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:12:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:41,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:41,160 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:12:41,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:41,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829522595] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:41,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-10-31 22:12:41,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111785581] [2024-10-31 22:12:41,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:41,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:41,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:41,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:41,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:41,164 INFO L87 Difference]: Start difference. First operand 166 states and 220 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:12:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:41,279 INFO L93 Difference]: Finished difference Result 250 states and 341 transitions. [2024-10-31 22:12:41,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:41,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 47 [2024-10-31 22:12:41,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:41,281 INFO L225 Difference]: With dead ends: 250 [2024-10-31 22:12:41,282 INFO L226 Difference]: Without dead ends: 248 [2024-10-31 22:12:41,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 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 22:12:41,283 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 58 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:41,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 115 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:41,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-10-31 22:12:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 227. [2024-10-31 22:12:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 178 states have (on average 1.4438202247191012) internal successors, (257), 196 states have internal predecessors, (257), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-10-31 22:12:41,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 315 transitions. [2024-10-31 22:12:41,307 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 315 transitions. Word has length 47 [2024-10-31 22:12:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:41,307 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 315 transitions. [2024-10-31 22:12:41,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-31 22:12:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 315 transitions. [2024-10-31 22:12:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-31 22:12:41,310 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:41,310 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:41,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:12:41,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:41,511 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:41,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:41,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1620253054, now seen corresponding path program 1 times [2024-10-31 22:12:41,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:41,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891205430] [2024-10-31 22:12:41,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:12:41,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:41,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891205430] [2024-10-31 22:12:41,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891205430] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:41,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770491104] [2024-10-31 22:12:41,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:41,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:41,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:41,600 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:41,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:12:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:41,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:41,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:41,716 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:12:41,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 22:12:41,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770491104] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:12:41,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:12:41,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-31 22:12:41,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312371005] [2024-10-31 22:12:41,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:41,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 22:12:41,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:41,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 22:12:41,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:41,798 INFO L87 Difference]: Start difference. First operand 227 states and 315 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-31 22:12:42,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:42,018 INFO L93 Difference]: Finished difference Result 375 states and 514 transitions. [2024-10-31 22:12:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:12:42,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 48 [2024-10-31 22:12:42,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:42,022 INFO L225 Difference]: With dead ends: 375 [2024-10-31 22:12:42,022 INFO L226 Difference]: Without dead ends: 373 [2024-10-31 22:12:42,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:42,023 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 113 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:42,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 218 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:12:42,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-10-31 22:12:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 327. [2024-10-31 22:12:42,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 262 states have (on average 1.4427480916030535) internal successors, (378), 280 states have internal predecessors, (378), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:42,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 468 transitions. [2024-10-31 22:12:42,065 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 468 transitions. Word has length 48 [2024-10-31 22:12:42,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:42,067 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 468 transitions. [2024-10-31 22:12:42,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-10-31 22:12:42,068 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 468 transitions. [2024-10-31 22:12:42,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-31 22:12:42,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:42,068 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:12:42,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:42,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:42,269 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:42,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:42,270 INFO L85 PathProgramCache]: Analyzing trace with hash 2137738517, now seen corresponding path program 1 times [2024-10-31 22:12:42,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:42,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620981846] [2024-10-31 22:12:42,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:42,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1042414990] [2024-10-31 22:12:42,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:42,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:42,284 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:42,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:12:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:42,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:12:42,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:42,460 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-31 22:12:42,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:42,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:42,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620981846] [2024-10-31 22:12:42,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:42,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042414990] [2024-10-31 22:12:42,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042414990] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:42,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:42,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:12:42,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271463873] [2024-10-31 22:12:42,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:42,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:42,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:42,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:42,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:12:42,464 INFO L87 Difference]: Start difference. First operand 327 states and 468 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 22:12:42,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:42,623 INFO L93 Difference]: Finished difference Result 346 states and 493 transitions. [2024-10-31 22:12:42,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:42,624 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 51 [2024-10-31 22:12:42,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:42,626 INFO L225 Difference]: With dead ends: 346 [2024-10-31 22:12:42,627 INFO L226 Difference]: Without dead ends: 340 [2024-10-31 22:12:42,627 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 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 22:12:42,628 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 104 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:42,628 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 81 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:42,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-31 22:12:42,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 324. [2024-10-31 22:12:42,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 259 states have (on average 1.4131274131274132) internal successors, (366), 277 states have internal predecessors, (366), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 456 transitions. [2024-10-31 22:12:42,659 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 456 transitions. Word has length 51 [2024-10-31 22:12:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:42,659 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 456 transitions. [2024-10-31 22:12:42,659 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 22:12:42,660 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 456 transitions. [2024-10-31 22:12:42,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-31 22:12:42,661 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:42,661 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:12:42,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:12:42,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:42,862 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:42,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:42,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1874334318, now seen corresponding path program 2 times [2024-10-31 22:12:42,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:42,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081526227] [2024-10-31 22:12:42,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:42,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:42,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [81587676] [2024-10-31 22:12:42,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:12:42,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:42,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:42,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:42,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:12:42,939 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:12:42,940 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:12:42,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:12:42,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:43,085 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:43,086 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:43,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:43,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081526227] [2024-10-31 22:12:43,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:43,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81587676] [2024-10-31 22:12:43,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81587676] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:43,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:43,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-31 22:12:43,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216406899] [2024-10-31 22:12:43,518 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:43,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:43,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:43,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:43,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:43,519 INFO L87 Difference]: Start difference. First operand 324 states and 456 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:12:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:43,793 INFO L93 Difference]: Finished difference Result 419 states and 587 transitions. [2024-10-31 22:12:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 63 [2024-10-31 22:12:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:43,796 INFO L225 Difference]: With dead ends: 419 [2024-10-31 22:12:43,796 INFO L226 Difference]: Without dead ends: 415 [2024-10-31 22:12:43,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:43,798 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 66 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:43,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 143 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:12:43,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-10-31 22:12:43,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 324. [2024-10-31 22:12:43,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 259 states have (on average 1.4054054054054055) internal successors, (364), 277 states have internal predecessors, (364), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:43,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 454 transitions. [2024-10-31 22:12:43,829 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 454 transitions. Word has length 63 [2024-10-31 22:12:43,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:43,829 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 454 transitions. [2024-10-31 22:12:43,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 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 22:12:43,830 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 454 transitions. [2024-10-31 22:12:43,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-31 22:12:43,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:43,831 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:43,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 22:12:44,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 22:12:44,035 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:44,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:44,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1822751055, now seen corresponding path program 1 times [2024-10-31 22:12:44,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:44,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869683861] [2024-10-31 22:12:44,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 22:12:44,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:44,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869683861] [2024-10-31 22:12:44,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869683861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:44,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:44,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:12:44,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626997720] [2024-10-31 22:12:44,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:44,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:12:44,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:44,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:12:44,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:12:44,116 INFO L87 Difference]: Start difference. First operand 324 states and 454 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 22:12:44,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:44,225 INFO L93 Difference]: Finished difference Result 324 states and 454 transitions. [2024-10-31 22:12:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:12:44,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 70 [2024-10-31 22:12:44,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:44,228 INFO L225 Difference]: With dead ends: 324 [2024-10-31 22:12:44,228 INFO L226 Difference]: Without dead ends: 323 [2024-10-31 22:12:44,229 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 22:12:44,229 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:44,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 99 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:44,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-10-31 22:12:44,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2024-10-31 22:12:44,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 259 states have (on average 1.3822393822393821) internal successors, (358), 276 states have internal predecessors, (358), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:44,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 448 transitions. [2024-10-31 22:12:44,258 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 448 transitions. Word has length 70 [2024-10-31 22:12:44,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:44,259 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 448 transitions. [2024-10-31 22:12:44,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 22:12:44,259 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 448 transitions. [2024-10-31 22:12:44,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-31 22:12:44,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:44,260 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:44,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:12:44,261 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:44,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:44,261 INFO L85 PathProgramCache]: Analyzing trace with hash -670707744, now seen corresponding path program 1 times [2024-10-31 22:12:44,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:44,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934054563] [2024-10-31 22:12:44,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:44,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:44,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,490 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:44,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:44,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934054563] [2024-10-31 22:12:44,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934054563] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:44,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078268731] [2024-10-31 22:12:44,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:44,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:44,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:44,494 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:44,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:12:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:44,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:12:44,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:44,763 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:44,764 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:44,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078268731] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:44,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:44,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-10-31 22:12:44,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984246988] [2024-10-31 22:12:44,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:44,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:44,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:44,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:44,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:12:44,766 INFO L87 Difference]: Start difference. First operand 323 states and 448 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:12:44,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:44,927 INFO L93 Difference]: Finished difference Result 341 states and 463 transitions. [2024-10-31 22:12:44,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:44,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-10-31 22:12:44,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:44,930 INFO L225 Difference]: With dead ends: 341 [2024-10-31 22:12:44,930 INFO L226 Difference]: Without dead ends: 340 [2024-10-31 22:12:44,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-10-31 22:12:44,931 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 127 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:44,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 115 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:44,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-31 22:12:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 323. [2024-10-31 22:12:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 259 states have (on average 1.3706563706563706) internal successors, (355), 276 states have internal predecessors, (355), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:44,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 445 transitions. [2024-10-31 22:12:44,965 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 445 transitions. Word has length 71 [2024-10-31 22:12:44,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:44,966 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 445 transitions. [2024-10-31 22:12:44,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-31 22:12:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 445 transitions. [2024-10-31 22:12:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 22:12:44,967 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:44,967 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:44,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:45,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 22:12:45,171 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:45,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:45,171 INFO L85 PathProgramCache]: Analyzing trace with hash 682896531, now seen corresponding path program 1 times [2024-10-31 22:12:45,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:45,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983376908] [2024-10-31 22:12:45,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:45,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:45,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:45,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:45,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983376908] [2024-10-31 22:12:45,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983376908] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:45,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424358421] [2024-10-31 22:12:45,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:45,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:45,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:45,369 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:45,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 22:12:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:45,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:45,439 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:45,670 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 22:12:45,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:45,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424358421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:45,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:45,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-31 22:12:45,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914573187] [2024-10-31 22:12:45,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:45,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:45,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:45,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:45,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:12:45,673 INFO L87 Difference]: Start difference. First operand 323 states and 445 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 22:12:45,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:45,928 INFO L93 Difference]: Finished difference Result 342 states and 466 transitions. [2024-10-31 22:12:45,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:45,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 72 [2024-10-31 22:12:45,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:45,931 INFO L225 Difference]: With dead ends: 342 [2024-10-31 22:12:45,931 INFO L226 Difference]: Without dead ends: 341 [2024-10-31 22:12:45,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 85 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 22:12:45,932 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 52 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:45,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 96 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:12:45,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-10-31 22:12:45,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 332. [2024-10-31 22:12:45,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 268 states have (on average 1.3582089552238805) internal successors, (364), 285 states have internal predecessors, (364), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:45,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 454 transitions. [2024-10-31 22:12:45,977 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 454 transitions. Word has length 72 [2024-10-31 22:12:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:45,977 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 454 transitions. [2024-10-31 22:12:45,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 22:12:45,978 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 454 transitions. [2024-10-31 22:12:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-31 22:12:45,978 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:45,979 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:45,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-31 22:12:46,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-31 22:12:46,180 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:46,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash -305043902, now seen corresponding path program 1 times [2024-10-31 22:12:46,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:46,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548439281] [2024-10-31 22:12:46,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:46,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:46,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:46,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:46,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:46,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548439281] [2024-10-31 22:12:46,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548439281] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:46,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025557021] [2024-10-31 22:12:46,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:46,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:46,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:46,408 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:46,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:12:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:46,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:12:46,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 22:12:46,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:12:46,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025557021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:46,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:46,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-31 22:12:46,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288745585] [2024-10-31 22:12:46,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:46,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:12:46,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:46,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:12:46,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:46,628 INFO L87 Difference]: Start difference. First operand 332 states and 454 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 22:12:46,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:46,833 INFO L93 Difference]: Finished difference Result 341 states and 460 transitions. [2024-10-31 22:12:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:12:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 73 [2024-10-31 22:12:46,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:46,836 INFO L225 Difference]: With dead ends: 341 [2024-10-31 22:12:46,836 INFO L226 Difference]: Without dead ends: 339 [2024-10-31 22:12:46,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 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 22:12:46,837 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 32 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:46,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 80 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:12:46,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2024-10-31 22:12:46,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 335. [2024-10-31 22:12:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 271 states have (on average 1.3284132841328413) internal successors, (360), 288 states have internal predecessors, (360), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-10-31 22:12:46,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 450 transitions. [2024-10-31 22:12:46,877 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 450 transitions. Word has length 73 [2024-10-31 22:12:46,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:46,878 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 450 transitions. [2024-10-31 22:12:46,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 22:12:46,878 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 450 transitions. [2024-10-31 22:12:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:12:46,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:46,879 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:46,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-31 22:12:47,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-31 22:12:47,081 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:47,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1089411164, now seen corresponding path program 1 times [2024-10-31 22:12:47,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:47,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968328747] [2024-10-31 22:12:47,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:47,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:47,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178912860] [2024-10-31 22:12:47,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:47,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:47,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:47,109 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:47,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 22:12:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:47,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:12:47,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 22:12:47,514 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:48,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968328747] [2024-10-31 22:12:48,261 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:48,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178912860] [2024-10-31 22:12:48,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178912860] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:48,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:48,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-31 22:12:48,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580000234] [2024-10-31 22:12:48,262 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:48,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:12:48,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:48,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:12:48,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:12:48,274 INFO L87 Difference]: Start difference. First operand 335 states and 450 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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 22:12:48,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:48,482 INFO L93 Difference]: Finished difference Result 419 states and 576 transitions. [2024-10-31 22:12:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:48,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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 75 [2024-10-31 22:12:48,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:48,485 INFO L225 Difference]: With dead ends: 419 [2024-10-31 22:12:48,485 INFO L226 Difference]: Without dead ends: 418 [2024-10-31 22:12:48,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:12:48,486 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 79 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:48,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 89 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:12:48,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-10-31 22:12:48,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 395. [2024-10-31 22:12:48,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 325 states have (on average 1.3446153846153845) internal successors, (437), 342 states have internal predecessors, (437), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:12:48,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 539 transitions. [2024-10-31 22:12:48,529 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 539 transitions. Word has length 75 [2024-10-31 22:12:48,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:48,529 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 539 transitions. [2024-10-31 22:12:48,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 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 22:12:48,530 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 539 transitions. [2024-10-31 22:12:48,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-31 22:12:48,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:48,531 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:48,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-31 22:12:48,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:48,732 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:48,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:48,732 INFO L85 PathProgramCache]: Analyzing trace with hash 587992367, now seen corresponding path program 1 times [2024-10-31 22:12:48,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:48,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133957923] [2024-10-31 22:12:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:48,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821404352] [2024-10-31 22:12:48,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:48,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:48,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:48,770 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:48,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 22:12:48,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:48,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:12:48,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:49,092 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 22:12:49,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:50,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:50,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133957923] [2024-10-31 22:12:50,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:50,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821404352] [2024-10-31 22:12:50,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821404352] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:50,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:50,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-31 22:12:50,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599183526] [2024-10-31 22:12:50,497 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:50,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:50,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:50,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:50,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:12:50,499 INFO L87 Difference]: Start difference. First operand 395 states and 539 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 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 22:12:50,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:50,692 INFO L93 Difference]: Finished difference Result 399 states and 539 transitions. [2024-10-31 22:12:50,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:12:50,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 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 76 [2024-10-31 22:12:50,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:50,695 INFO L225 Difference]: With dead ends: 399 [2024-10-31 22:12:50,696 INFO L226 Difference]: Without dead ends: 396 [2024-10-31 22:12:50,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:12:50,698 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 48 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:50,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 92 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:12:50,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-10-31 22:12:50,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2024-10-31 22:12:50,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 325 states have (on average 1.2738461538461539) internal successors, (414), 340 states have internal predecessors, (414), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:12:50,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 516 transitions. [2024-10-31 22:12:50,753 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 516 transitions. Word has length 76 [2024-10-31 22:12:50,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:50,753 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 516 transitions. [2024-10-31 22:12:50,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 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 22:12:50,754 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 516 transitions. [2024-10-31 22:12:50,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:12:50,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:50,755 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] [2024-10-31 22:12:50,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-31 22:12:50,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:50,960 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:50,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:50,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1047894278, now seen corresponding path program 1 times [2024-10-31 22:12:50,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:50,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059198182] [2024-10-31 22:12:50,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:50,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:50,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-10-31 22:12:51,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:51,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059198182] [2024-10-31 22:12:51,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059198182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:51,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:51,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:12:51,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597885780] [2024-10-31 22:12:51,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:51,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:51,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:51,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:51,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:51,060 INFO L87 Difference]: Start difference. First operand 393 states and 516 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 22:12:51,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:51,561 INFO L93 Difference]: Finished difference Result 395 states and 516 transitions. [2024-10-31 22:12:51,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:12:51,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 77 [2024-10-31 22:12:51,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:51,564 INFO L225 Difference]: With dead ends: 395 [2024-10-31 22:12:51,564 INFO L226 Difference]: Without dead ends: 394 [2024-10-31 22:12:51,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:12:51,565 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 49 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:51,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 151 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:12:51,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-10-31 22:12:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 392. [2024-10-31 22:12:51,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 325 states have (on average 1.2461538461538462) internal successors, (405), 339 states have internal predecessors, (405), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:12:51,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 507 transitions. [2024-10-31 22:12:51,609 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 507 transitions. Word has length 77 [2024-10-31 22:12:51,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:51,609 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 507 transitions. [2024-10-31 22:12:51,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 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 22:12:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 507 transitions. [2024-10-31 22:12:51,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-31 22:12:51,610 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:51,611 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 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 22:12:51,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-31 22:12:51,611 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:51,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:51,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1875015663, now seen corresponding path program 1 times [2024-10-31 22:12:51,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:51,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058825558] [2024-10-31 22:12:51,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:51,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:51,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:51,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:51,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,835 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:51,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:51,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058825558] [2024-10-31 22:12:51,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058825558] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:51,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142675975] [2024-10-31 22:12:51,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:51,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:51,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:51,838 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:51,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-31 22:12:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:51,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-31 22:12:51,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:52,451 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:12:52,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:53,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142675975] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:53,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:12:53,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-10-31 22:12:53,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473159592] [2024-10-31 22:12:53,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:53,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-31 22:12:53,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:53,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:12:53,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-10-31 22:12:53,500 INFO L87 Difference]: Start difference. First operand 392 states and 507 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-10-31 22:12:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:55,543 INFO L93 Difference]: Finished difference Result 686 states and 911 transitions. [2024-10-31 22:12:55,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-10-31 22:12:55,547 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 78 [2024-10-31 22:12:55,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:55,554 INFO L225 Difference]: With dead ends: 686 [2024-10-31 22:12:55,554 INFO L226 Difference]: Without dead ends: 681 [2024-10-31 22:12:55,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=307, Invalid=1099, Unknown=0, NotChecked=0, Total=1406 [2024-10-31 22:12:55,555 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 426 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:55,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 361 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-31 22:12:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-10-31 22:12:55,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 528. [2024-10-31 22:12:55,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 445 states have (on average 1.2382022471910112) internal successors, (551), 459 states have internal predecessors, (551), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-10-31 22:12:55,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 685 transitions. [2024-10-31 22:12:55,617 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 685 transitions. Word has length 78 [2024-10-31 22:12:55,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:55,617 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 685 transitions. [2024-10-31 22:12:55,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 6 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2024-10-31 22:12:55,618 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 685 transitions. [2024-10-31 22:12:55,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-10-31 22:12:55,622 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:55,622 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 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] [2024-10-31 22:12:55,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-31 22:12:55,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-31 22:12:55,826 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:55,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:55,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1822396848, now seen corresponding path program 1 times [2024-10-31 22:12:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:55,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959234180] [2024-10-31 22:12:55,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:55,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:55,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15138792] [2024-10-31 22:12:55,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:55,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:55,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:55,860 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:55,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-31 22:12:55,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:55,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:12:55,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 3 proven. 41 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-10-31 22:12:56,355 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:56,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959234180] [2024-10-31 22:12:56,970 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:12:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15138792] [2024-10-31 22:12:56,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15138792] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:56,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:12:56,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-31 22:12:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761281402] [2024-10-31 22:12:56,971 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:56,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:12:56,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:12:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:12:56,973 INFO L87 Difference]: Start difference. First operand 528 states and 685 transitions. Second operand has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-31 22:12:57,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:57,563 INFO L93 Difference]: Finished difference Result 548 states and 697 transitions. [2024-10-31 22:12:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:12:57,563 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 92 [2024-10-31 22:12:57,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:57,566 INFO L225 Difference]: With dead ends: 548 [2024-10-31 22:12:57,567 INFO L226 Difference]: Without dead ends: 426 [2024-10-31 22:12:57,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-31 22:12:57,570 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 17 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:57,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 230 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:12:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-10-31 22:12:57,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 424. [2024-10-31 22:12:57,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 353 states have (on average 1.226628895184136) internal successors, (433), 367 states have internal predecessors, (433), 55 states have call successors, (55), 1 states have call predecessors, (55), 1 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2024-10-31 22:12:57,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 543 transitions. [2024-10-31 22:12:57,627 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 543 transitions. Word has length 92 [2024-10-31 22:12:57,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:57,627 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 543 transitions. [2024-10-31 22:12:57,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.8) internal successors, (48), 11 states have internal predecessors, (48), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-10-31 22:12:57,628 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 543 transitions. [2024-10-31 22:12:57,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-31 22:12:57,631 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:57,631 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 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] [2024-10-31 22:12:57,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-31 22:12:57,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-31 22:12:57,832 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:57,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:57,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1023289906, now seen corresponding path program 1 times [2024-10-31 22:12:57,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:57,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599806799] [2024-10-31 22:12:57,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:57,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:58,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:58,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:12:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-31 22:12:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-31 22:12:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-10-31 22:12:58,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:58,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599806799] [2024-10-31 22:12:58,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599806799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:12:58,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:12:58,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:12:58,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85566086] [2024-10-31 22:12:58,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:12:58,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:12:58,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:58,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:12:58,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 22:12:58,037 INFO L87 Difference]: Start difference. First operand 424 states and 543 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:12:58,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:58,638 INFO L93 Difference]: Finished difference Result 426 states and 543 transitions. [2024-10-31 22:12:58,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:12:58,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2024-10-31 22:12:58,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:58,641 INFO L225 Difference]: With dead ends: 426 [2024-10-31 22:12:58,641 INFO L226 Difference]: Without dead ends: 393 [2024-10-31 22:12:58,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:12:58,642 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 22 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:58,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 187 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-31 22:12:58,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-10-31 22:12:58,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 391. [2024-10-31 22:12:58,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 325 states have (on average 1.24) internal successors, (403), 338 states have internal predecessors, (403), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-10-31 22:12:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 505 transitions. [2024-10-31 22:12:58,685 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 505 transitions. Word has length 94 [2024-10-31 22:12:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:58,686 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 505 transitions. [2024-10-31 22:12:58,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-10-31 22:12:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 505 transitions. [2024-10-31 22:12:58,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-10-31 22:12:58,687 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:58,687 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2024-10-31 22:12:58,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-31 22:12:58,688 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:58,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:58,688 INFO L85 PathProgramCache]: Analyzing trace with hash 187458724, now seen corresponding path program 1 times [2024-10-31 22:12:58,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:58,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037251179] [2024-10-31 22:12:58,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:58,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-31 22:12:58,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:12:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:12:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 22:12:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-31 22:12:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:12:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-31 22:12:58,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:12:58,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-31 22:12:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-31 22:12:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-31 22:12:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-31 22:12:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-31 22:12:58,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:12:58,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037251179] [2024-10-31 22:12:58,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037251179] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:12:58,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336091084] [2024-10-31 22:12:58,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:58,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:58,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:58,821 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:58,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-31 22:12:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:12:58,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:12:58,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:12:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-31 22:12:58,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:12:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-31 22:12:59,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336091084] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:12:59,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:12:59,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:12:59,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886730327] [2024-10-31 22:12:59,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:12:59,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:12:59,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:12:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:12:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:12:59,151 INFO L87 Difference]: Start difference. First operand 391 states and 505 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-10-31 22:12:59,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:12:59,554 INFO L93 Difference]: Finished difference Result 797 states and 1028 transitions. [2024-10-31 22:12:59,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 22:12:59,554 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 96 [2024-10-31 22:12:59,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:12:59,559 INFO L225 Difference]: With dead ends: 797 [2024-10-31 22:12:59,559 INFO L226 Difference]: Without dead ends: 795 [2024-10-31 22:12:59,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:12:59,560 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 238 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:12:59,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 339 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:12:59,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-10-31 22:12:59,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 541. [2024-10-31 22:12:59,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 451 states have (on average 1.2439024390243902) internal successors, (561), 464 states have internal predecessors, (561), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-10-31 22:12:59,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 711 transitions. [2024-10-31 22:12:59,625 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 711 transitions. Word has length 96 [2024-10-31 22:12:59,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:12:59,625 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 711 transitions. [2024-10-31 22:12:59,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 11 states have internal predecessors, (81), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-10-31 22:12:59,626 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 711 transitions. [2024-10-31 22:12:59,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-31 22:12:59,627 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:12:59,627 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-31 22:12:59,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-31 22:12:59,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-31 22:12:59,828 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-10-31 22:12:59,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:12:59,829 INFO L85 PathProgramCache]: Analyzing trace with hash 360263030, now seen corresponding path program 2 times [2024-10-31 22:12:59,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:12:59,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513899961] [2024-10-31 22:12:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:12:59,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:12:59,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:12:59,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [192999613] [2024-10-31 22:12:59,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:12:59,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:12:59,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:12:59,855 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:12:59,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb8c8edb-af29-4250-b179-055de898318a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-31 22:12:59,944 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:12:59,945 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:12:59,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-31 22:12:59,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:13:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:13:00,530 INFO L311 TraceCheckSpWp]: Computing backward predicates...