./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx --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 9692f5b55a240b01d2d0c222255869fb052ffe02a605ab1c8e72ef46a070f8cd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:18:55,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:18:55,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-21 22:18:55,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:18:55,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:18:55,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:18:55,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:18:55,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:18:55,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:18:55,384 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:18:55,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:18:55,386 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:18:55,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:18:55,389 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:18:55,389 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:18:55,390 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:18:55,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:18:55,391 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:18:55,392 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:18:55,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:18:55,393 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:18:55,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:18:55,394 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:18:55,395 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:18:55,395 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:18:55,396 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:18:55,396 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:18:55,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:18:55,397 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:18:55,398 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:18:55,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:18:55,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:18:55,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:18:55,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:55,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:18:55,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:18:55,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:18:55,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:18:55,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:18:55,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:18:55,404 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:18:55,404 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:18:55,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:18:55,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:18:55,406 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_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9692f5b55a240b01d2d0c222255869fb052ffe02a605ab1c8e72ef46a070f8cd [2023-11-21 22:18:55,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:18:55,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:18:55,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:18:55,722 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:18:55,722 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:18:55,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound50.c [2023-11-21 22:18:58,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:18:59,147 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:18:59,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/sv-benchmarks/c/nla-digbench-scaling/hard-u_unwindbound50.c [2023-11-21 22:18:59,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/data/cc5029ba7/7936fa43f8e7486e8daaa6b490256955/FLAGe76ba72a5 [2023-11-21 22:18:59,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/data/cc5029ba7/7936fa43f8e7486e8daaa6b490256955 [2023-11-21 22:18:59,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:18:59,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:18:59,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:59,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:18:59,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:18:59,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e44930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59, skipping insertion in model container [2023-11-21 22:18:59,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,212 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:18:59,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:59,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:18:59,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:18:59,440 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:18:59,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59 WrapperNode [2023-11-21 22:18:59,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:18:59,442 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:59,442 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:18:59,442 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:18:59,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,480 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2023-11-21 22:18:59,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:18:59,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:18:59,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:18:59,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:18:59,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,496 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,506 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:18:59,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,510 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:18:59,518 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:18:59,518 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:18:59,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:18:59,520 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (1/1) ... [2023-11-21 22:18:59,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:18:59,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:18:59,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:18:59,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:18:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:18:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:18:59,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:18:59,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:18:59,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:18:59,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:18:59,668 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:18:59,671 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:18:59,875 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:18:59,967 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:18:59,972 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:18:59,974 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:59 BoogieIcfgContainer [2023-11-21 22:18:59,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:18:59,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:18:59,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:18:59,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:18:59,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:18:59" (1/3) ... [2023-11-21 22:18:59,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53248bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:59, skipping insertion in model container [2023-11-21 22:18:59,985 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:18:59" (2/3) ... [2023-11-21 22:18:59,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53248bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:18:59, skipping insertion in model container [2023-11-21 22:18:59,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:59" (3/3) ... [2023-11-21 22:18:59,990 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-u_unwindbound50.c [2023-11-21 22:19:00,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:19:00,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-21 22:19:00,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:19:00,088 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@787c7b31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:19:00,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 22:19:00,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 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) [2023-11-21 22:19:00,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:19:00,100 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:00,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:19:00,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:00,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash 134028, now seen corresponding path program 1 times [2023-11-21 22:19:00,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:00,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287593853] [2023-11-21 22:19:00,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:00,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:00,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:19:00,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:00,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287593853] [2023-11-21 22:19:00,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287593853] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:00,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:00,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:19:00,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451562099] [2023-11-21 22:19:00,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:00,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:19:00,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:00,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:19:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:19:00,457 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 17 states have internal predecessors, (23), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-21 22:19:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:00,566 INFO L93 Difference]: Finished difference Result 47 states and 65 transitions. [2023-11-21 22:19:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:19:00,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-21 22:19:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:00,582 INFO L225 Difference]: With dead ends: 47 [2023-11-21 22:19:00,584 INFO L226 Difference]: Without dead ends: 26 [2023-11-21 22:19:00,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:19:00,594 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:00,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 77 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:00,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-21 22:19:00,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-21 22:19:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.375) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-11-21 22:19:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-11-21 22:19:00,666 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 3 [2023-11-21 22:19:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:00,667 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-11-21 22:19:00,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-21 22:19:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-11-21 22:19:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-21 22:19:00,671 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:00,671 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:00,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:19:00,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:00,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:00,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1024983950, now seen corresponding path program 1 times [2023-11-21 22:19:00,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:00,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507741156] [2023-11-21 22:19:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:00,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:00,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [812795162] [2023-11-21 22:19:00,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:00,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:00,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:00,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:00,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:19:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:00,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:00,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:00,933 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:19:00,933 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:00,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:00,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507741156] [2023-11-21 22:19:00,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:00,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812795162] [2023-11-21 22:19:00,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812795162] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:00,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:00,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:00,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962407798] [2023-11-21 22:19:00,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:00,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:19:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:19:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:19:00,940 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-11-21 22:19:01,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:01,011 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2023-11-21 22:19:01,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:19:01,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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 17 [2023-11-21 22:19:01,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:01,013 INFO L225 Difference]: With dead ends: 26 [2023-11-21 22:19:01,016 INFO L226 Difference]: Without dead ends: 24 [2023-11-21 22:19:01,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:19:01,019 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:01,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 36 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:01,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-21 22:19:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-21 22:19:01,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.25) internal successors, (20), 17 states have internal predecessors, (20), 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) [2023-11-21 22:19:01,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2023-11-21 22:19:01,029 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 17 [2023-11-21 22:19:01,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:01,031 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-11-21 22:19:01,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-11-21 22:19:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-11-21 22:19:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:19:01,033 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:01,033 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:01,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:01,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:01,256 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:01,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:01,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1709731450, now seen corresponding path program 1 times [2023-11-21 22:19:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:01,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189815586] [2023-11-21 22:19:01,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:01,286 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:01,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016591804] [2023-11-21 22:19:01,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:01,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:01,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:01,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:19:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:01,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:01,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:01,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:19:01,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:01,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:01,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189815586] [2023-11-21 22:19:01,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:01,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016591804] [2023-11-21 22:19:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016591804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:01,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:01,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:01,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063343367] [2023-11-21 22:19:01,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:01,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:19:01,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:01,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:19:01,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:19:01,467 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-21 22:19:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:01,563 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-11-21 22:19:01,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:19:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 18 [2023-11-21 22:19:01,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:01,565 INFO L225 Difference]: With dead ends: 31 [2023-11-21 22:19:01,566 INFO L226 Difference]: Without dead ends: 30 [2023-11-21 22:19:01,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:19:01,568 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 9 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:01,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 38 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:19:01,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-21 22:19:01,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2023-11-21 22:19:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2023-11-21 22:19:01,579 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 18 [2023-11-21 22:19:01,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:01,580 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2023-11-21 22:19:01,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-21 22:19:01,580 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2023-11-21 22:19:01,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-21 22:19:01,581 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:01,581 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:01,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:01,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:01,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:01,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1709767200, now seen corresponding path program 1 times [2023-11-21 22:19:01,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:01,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57738474] [2023-11-21 22:19:01,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:01,826 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:01,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000859489] [2023-11-21 22:19:01,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:01,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:01,836 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:01,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:19:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:01,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:01,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:01,942 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:19:01,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:01,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:01,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57738474] [2023-11-21 22:19:01,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:01,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000859489] [2023-11-21 22:19:01,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000859489] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:01,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:01,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:01,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054522792] [2023-11-21 22:19:01,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:01,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:19:01,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:01,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:19:01,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:19:01,947 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-21 22:19:02,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:02,018 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2023-11-21 22:19:02,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:19:02,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 18 [2023-11-21 22:19:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:02,020 INFO L225 Difference]: With dead ends: 29 [2023-11-21 22:19:02,021 INFO L226 Difference]: Without dead ends: 28 [2023-11-21 22:19:02,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:19:02,023 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 7 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:02,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 48 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:02,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-21 22:19:02,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-21 22:19:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:19:02,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2023-11-21 22:19:02,033 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 18 [2023-11-21 22:19:02,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:02,034 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2023-11-21 22:19:02,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-11-21 22:19:02,034 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2023-11-21 22:19:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 22:19:02,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:02,036 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:02,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:02,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-21 22:19:02,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:02,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:02,253 INFO L85 PathProgramCache]: Analyzing trace with hash -155770605, now seen corresponding path program 1 times [2023-11-21 22:19:02,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:02,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262095052] [2023-11-21 22:19:02,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:02,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:02,270 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:02,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761266813] [2023-11-21 22:19:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:02,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:02,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:02,277 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:02,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 22:19:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:02,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:19:02,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:19:02,433 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:02,551 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-21 22:19:02,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:02,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262095052] [2023-11-21 22:19:02,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:02,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761266813] [2023-11-21 22:19:02,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761266813] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:02,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:02,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-21 22:19:02,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886306193] [2023-11-21 22:19:02,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:02,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:19:02,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:02,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:19:02,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:19:02,568 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-21 22:19:02,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:02,807 INFO L93 Difference]: Finished difference Result 77 states and 95 transitions. [2023-11-21 22:19:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-21 22:19:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 22 [2023-11-21 22:19:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:02,821 INFO L225 Difference]: With dead ends: 77 [2023-11-21 22:19:02,823 INFO L226 Difference]: Without dead ends: 67 [2023-11-21 22:19:02,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-21 22:19:02,826 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 54 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:02,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 59 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:19:02,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-21 22:19:02,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 58. [2023-11-21 22:19:02,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 14 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-21 22:19:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 72 transitions. [2023-11-21 22:19:02,851 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 72 transitions. Word has length 22 [2023-11-21 22:19:02,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:02,851 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 72 transitions. [2023-11-21 22:19:02,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-21 22:19:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2023-11-21 22:19:02,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:19:02,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:02,854 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:02,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:03,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:03,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:03,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1032526858, now seen corresponding path program 1 times [2023-11-21 22:19:03,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:03,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011314396] [2023-11-21 22:19:03,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:03,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:03,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:03,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084404367] [2023-11-21 22:19:03,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:03,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:03,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,097 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 22:19:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:03,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:19:03,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-21 22:19:03,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:03,344 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-21 22:19:03,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:03,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011314396] [2023-11-21 22:19:03,345 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:03,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084404367] [2023-11-21 22:19:03,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084404367] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:03,345 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:03,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-21 22:19:03,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918108962] [2023-11-21 22:19:03,346 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:03,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-21 22:19:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-21 22:19:03,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2023-11-21 22:19:03,353 INFO L87 Difference]: Start difference. First operand 58 states and 72 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-21 22:19:03,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:03,571 INFO L93 Difference]: Finished difference Result 86 states and 105 transitions. [2023-11-21 22:19:03,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-21 22:19:03,572 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 29 [2023-11-21 22:19:03,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:03,573 INFO L225 Difference]: With dead ends: 86 [2023-11-21 22:19:03,574 INFO L226 Difference]: Without dead ends: 85 [2023-11-21 22:19:03,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=260, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:19:03,575 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 33 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:03,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 49 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:19:03,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-21 22:19:03,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-11-21 22:19:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 56 states have internal predecessors, (62), 20 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-21 22:19:03,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 102 transitions. [2023-11-21 22:19:03,598 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 102 transitions. Word has length 29 [2023-11-21 22:19:03,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:03,598 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 102 transitions. [2023-11-21 22:19:03,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 12 states have internal predecessors, (28), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2023-11-21 22:19:03,599 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 102 transitions. [2023-11-21 22:19:03,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-21 22:19:03,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:03,602 INFO L195 NwaCegarLoop]: trace histogram [11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:03,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:03,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:03,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:03,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1935703174, now seen corresponding path program 2 times [2023-11-21 22:19:03,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:03,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318453496] [2023-11-21 22:19:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:03,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:03,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:03,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93050847] [2023-11-21 22:19:03,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:19:03,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:03,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:03,870 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:03,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 22:19:03,954 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:19:03,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:03,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:19:03,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 22:19:04,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-21 22:19:04,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:04,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318453496] [2023-11-21 22:19:04,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:04,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93050847] [2023-11-21 22:19:04,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93050847] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:04,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:04,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-21 22:19:04,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363557248] [2023-11-21 22:19:04,445 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:04,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-21 22:19:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:04,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-21 22:19:04,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:19:04,449 INFO L87 Difference]: Start difference. First operand 85 states and 102 transitions. Second operand has 26 states, 25 states have (on average 2.56) internal successors, (64), 26 states have internal predecessors, (64), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-21 22:19:05,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:05,113 INFO L93 Difference]: Finished difference Result 200 states and 234 transitions. [2023-11-21 22:19:05,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-21 22:19:05,114 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.56) internal successors, (64), 26 states have internal predecessors, (64), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 62 [2023-11-21 22:19:05,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:05,117 INFO L225 Difference]: With dead ends: 200 [2023-11-21 22:19:05,117 INFO L226 Difference]: Without dead ends: 199 [2023-11-21 22:19:05,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=680, Invalid=1770, Unknown=0, NotChecked=0, Total=2450 [2023-11-21 22:19:05,120 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 137 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:05,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 100 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:19:05,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-21 22:19:05,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 139. [2023-11-21 22:19:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 92 states have (on average 1.065217391304348) internal successors, (98), 92 states have internal predecessors, (98), 32 states have call successors, (32), 14 states have call predecessors, (32), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-21 22:19:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 162 transitions. [2023-11-21 22:19:05,150 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 162 transitions. Word has length 62 [2023-11-21 22:19:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:05,150 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 162 transitions. [2023-11-21 22:19:05,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.56) internal successors, (64), 26 states have internal predecessors, (64), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-11-21 22:19:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 162 transitions. [2023-11-21 22:19:05,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-21 22:19:05,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:05,155 INFO L195 NwaCegarLoop]: trace histogram [12, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2023-11-21 22:19:05,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:05,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:05,376 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:05,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:05,377 INFO L85 PathProgramCache]: Analyzing trace with hash -552415993, now seen corresponding path program 2 times [2023-11-21 22:19:05,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:05,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670848834] [2023-11-21 22:19:05,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:05,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:05,395 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:05,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1138242946] [2023-11-21 22:19:05,395 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:19:05,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:05,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:05,397 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:05,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-21 22:19:05,472 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 22:19:05,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:05,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:19:05,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 22:19:05,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-11-21 22:19:05,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670848834] [2023-11-21 22:19:05,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:05,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138242946] [2023-11-21 22:19:05,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138242946] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:05,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:05,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 25 [2023-11-21 22:19:05,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62988534] [2023-11-21 22:19:05,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:05,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-21 22:19:05,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:05,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-21 22:19:05,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2023-11-21 22:19:05,963 INFO L87 Difference]: Start difference. First operand 139 states and 162 transitions. Second operand has 26 states, 25 states have (on average 2.44) internal successors, (61), 26 states have internal predecessors, (61), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-21 22:19:06,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:06,803 INFO L93 Difference]: Finished difference Result 278 states and 336 transitions. [2023-11-21 22:19:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-21 22:19:06,804 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.44) internal successors, (61), 26 states have internal predecessors, (61), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) Word has length 64 [2023-11-21 22:19:06,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:06,807 INFO L225 Difference]: With dead ends: 278 [2023-11-21 22:19:06,807 INFO L226 Difference]: Without dead ends: 268 [2023-11-21 22:19:06,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=812, Invalid=2494, Unknown=0, NotChecked=0, Total=3306 [2023-11-21 22:19:06,810 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 258 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:06,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 114 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:19:06,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-11-21 22:19:06,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 199. [2023-11-21 22:19:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 128 states have (on average 1.1328125) internal successors, (145), 128 states have internal predecessors, (145), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-21 22:19:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2023-11-21 22:19:06,847 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 64 [2023-11-21 22:19:06,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:06,848 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2023-11-21 22:19:06,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.44) internal successors, (61), 26 states have internal predecessors, (61), 8 states have call successors, (24), 5 states have call predecessors, (24), 5 states have return successors, (24), 8 states have call predecessors, (24), 8 states have call successors, (24) [2023-11-21 22:19:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2023-11-21 22:19:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-21 22:19:06,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:06,851 INFO L195 NwaCegarLoop]: trace histogram [16, 6, 6, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-21 22:19:06,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:07,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:07,072 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:07,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash -29353862, now seen corresponding path program 1 times [2023-11-21 22:19:07,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:07,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716097329] [2023-11-21 22:19:07,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:07,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:07,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44534835] [2023-11-21 22:19:07,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:07,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:07,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:07,107 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:07,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-21 22:19:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:19:07,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-21 22:19:07,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:07,436 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 3 proven. 308 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-21 22:19:07,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:19:07,828 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 3 proven. 90 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-11-21 22:19:07,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:07,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716097329] [2023-11-21 22:19:07,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:07,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44534835] [2023-11-21 22:19:07,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44534835] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:19:07,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:19:07,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 31 [2023-11-21 22:19:07,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887321972] [2023-11-21 22:19:07,830 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:19:07,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-21 22:19:07,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:07,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-21 22:19:07,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2023-11-21 22:19:07,833 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 32 states, 31 states have (on average 2.6774193548387095) internal successors, (83), 32 states have internal predecessors, (83), 14 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 14 states have call predecessors, (32), 14 states have call successors, (32) [2023-11-21 22:19:08,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:08,584 INFO L93 Difference]: Finished difference Result 374 states and 449 transitions. [2023-11-21 22:19:08,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-21 22:19:08,586 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.6774193548387095) internal successors, (83), 32 states have internal predecessors, (83), 14 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 14 states have call predecessors, (32), 14 states have call successors, (32) Word has length 87 [2023-11-21 22:19:08,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:08,590 INFO L225 Difference]: With dead ends: 374 [2023-11-21 22:19:08,590 INFO L226 Difference]: Without dead ends: 373 [2023-11-21 22:19:08,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=944, Invalid=2362, Unknown=0, NotChecked=0, Total=3306 [2023-11-21 22:19:08,598 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 138 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:08,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 73 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:19:08,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2023-11-21 22:19:08,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 167. [2023-11-21 22:19:08,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 110 states have (on average 1.0636363636363637) internal successors, (117), 110 states have internal predecessors, (117), 39 states have call successors, (39), 17 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-21 22:19:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 195 transitions. [2023-11-21 22:19:08,648 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 195 transitions. Word has length 87 [2023-11-21 22:19:08,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:08,651 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 195 transitions. [2023-11-21 22:19:08,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.6774193548387095) internal successors, (83), 32 states have internal predecessors, (83), 14 states have call successors, (32), 8 states have call predecessors, (32), 8 states have return successors, (32), 14 states have call predecessors, (32), 14 states have call successors, (32) [2023-11-21 22:19:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 195 transitions. [2023-11-21 22:19:08,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-21 22:19:08,662 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:19:08,663 INFO L195 NwaCegarLoop]: trace histogram [27, 13, 13, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:19:08,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:08,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:08,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 22:19:08,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:19:08,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1985270406, now seen corresponding path program 3 times [2023-11-21 22:19:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:19:08,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396341296] [2023-11-21 22:19:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:19:08,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:19:08,910 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:19:08,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [199993500] [2023-11-21 22:19:08,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 22:19:08,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:19:08,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:19:08,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:19:08,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-21 22:19:08,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-21 22:19:08,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:19:08,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:19:09,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:19:09,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2023-11-21 22:19:09,039 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:19:09,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:19:09,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396341296] [2023-11-21 22:19:09,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:19:09,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199993500] [2023-11-21 22:19:09,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199993500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:19:09,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:19:09,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:19:09,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991668154] [2023-11-21 22:19:09,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:19:09,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:19:09,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:19:09,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:19:09,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:19:09,043 INFO L87 Difference]: Start difference. First operand 167 states and 195 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-21 22:19:09,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:19:09,110 INFO L93 Difference]: Finished difference Result 167 states and 195 transitions. [2023-11-21 22:19:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:19:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 150 [2023-11-21 22:19:09,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:19:09,112 INFO L225 Difference]: With dead ends: 167 [2023-11-21 22:19:09,112 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:19:09,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:19:09,117 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:19:09,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 55 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:19:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:19:09,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:19:09,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:19:09,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:19:09,120 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2023-11-21 22:19:09,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:19:09,120 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:19:09,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-21 22:19:09,121 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:19:09,121 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:19:09,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-21 22:19:09,124 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-21 22:19:09,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-21 22:19:09,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-21 22:19:09,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-21 22:19:09,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-21 22:19:09,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:19:09,826 INFO L899 garLoopResultBuilder]: For program point L35-2(line 35) no Hoare annotation was computed. [2023-11-21 22:19:09,826 INFO L899 garLoopResultBuilder]: For program point L35-3(lines 35 43) no Hoare annotation was computed. [2023-11-21 22:19:09,826 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:19:09,827 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 43) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 50)) [2023-11-21 22:19:09,827 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2023-11-21 22:19:09,828 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 50)) [2023-11-21 22:19:09,828 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 50)) [2023-11-21 22:19:09,828 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:19:09,828 INFO L895 garLoopResultBuilder]: At program point L53-2(lines 45 57) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 51)) [2023-11-21 22:19:09,829 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2023-11-21 22:19:09,829 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-21 22:19:09,829 INFO L899 garLoopResultBuilder]: For program point L45-2(lines 45 57) no Hoare annotation was computed. [2023-11-21 22:19:09,829 INFO L902 garLoopResultBuilder]: At program point L45-4(lines 45 57) the Hoare annotation is: true [2023-11-21 22:19:09,829 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 50)) [2023-11-21 22:19:09,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2023-11-21 22:19:09,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:19:09,830 INFO L895 garLoopResultBuilder]: At program point L46(line 46) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 50)) [2023-11-21 22:19:09,830 INFO L895 garLoopResultBuilder]: At program point L46-1(line 46) the Hoare annotation is: (and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 50)) [2023-11-21 22:19:09,830 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:19:09,830 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 43) no Hoare annotation was computed. [2023-11-21 22:19:09,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 45) no Hoare annotation was computed. [2023-11-21 22:19:09,831 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2023-11-21 22:19:09,831 INFO L899 garLoopResultBuilder]: For program point L47(lines 45 57) no Hoare annotation was computed. [2023-11-21 22:19:09,831 INFO L899 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2023-11-21 22:19:09,831 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 20) no Hoare annotation was computed. [2023-11-21 22:19:09,832 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 20) the Hoare annotation is: true [2023-11-21 22:19:09,836 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1] [2023-11-21 22:19:09,838 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:19:09,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:19:09 BoogieIcfgContainer [2023-11-21 22:19:09,849 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:19:09,850 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:19:09,850 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:19:09,850 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:19:09,850 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:18:59" (3/4) ... [2023-11-21 22:19:09,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:19:09,855 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-21 22:19:09,862 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-21 22:19:09,862 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 22:19:09,863 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:19:09,863 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:19:09,974 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:19:09,974 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:19:09,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:19:09,975 INFO L158 Benchmark]: Toolchain (without parser) took 10796.94ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 113.5MB in the beginning and 87.4MB in the end (delta: 26.2MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2023-11-21 22:19:09,975 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:09,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.42ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 102.6MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:19:09,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.70ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 101.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:19:09,977 INFO L158 Benchmark]: Boogie Preprocessor took 36.43ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:19:09,977 INFO L158 Benchmark]: RCFGBuilder took 456.53ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 84.2MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:19:09,978 INFO L158 Benchmark]: TraceAbstraction took 9870.36ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 83.8MB in the beginning and 91.6MB in the end (delta: -7.8MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. [2023-11-21 22:19:09,978 INFO L158 Benchmark]: Witness Printer took 124.73ms. Allocated memory is still 201.3MB. Free memory was 91.6MB in the beginning and 87.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:19:09,981 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 107.0MB. Free memory was 63.9MB in the beginning and 63.7MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.42ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 102.6MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.70ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 101.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.43ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.53ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 84.2MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 9870.36ms. Allocated memory was 142.6MB in the beginning and 201.3MB in the end (delta: 58.7MB). Free memory was 83.8MB in the beginning and 91.6MB in the end (delta: -7.8MB). Peak memory consumption was 87.0MB. Max. memory is 16.1GB. * Witness Printer took 124.73ms. Allocated memory is still 201.3MB. Free memory was 91.6MB in the beginning and 87.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 10, TraceHistogramMax: 27, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 665 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 665 mSDsluCounter, 649 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 494 mSDsCounter, 102 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1073 IncrementalHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 102 mSolverCounterUnsat, 155 mSDtfsCounter, 1073 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 827 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1932 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199occurred in iteration=8, InterpolantAutomatonStates: 186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 345 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 58 PreInvPairs, 114 NumberOfFragments, 66 HoareAnnotationTreeSize, 58 FomulaSimplifications, 6329 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 10 FomulaSimplificationsInter, 1172 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 470 NumberOfCodeBlocks, 346 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 719 ConstructedInterpolants, 0 QuantifiedInterpolants, 1687 SizeOfPredicates, 46 NumberOfNonLiveVariables, 1097 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 1809/2673 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((0 <= (counter + 2147483648)) && (counter <= 50)) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((0 <= (counter + 2147483648)) && (counter <= 51)) RESULT: Ultimate proved your program to be correct! [2023-11-21 22:19:10,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7e1d7b2-9945-447b-b8b4-2378b4652d2f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE