./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/vnew2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/vnew2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6cb26fc448cefa547e2463448c16c0efba841bf620bbd2ba420ae15e288e3a3f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:03:43,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:03:43,581 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:03:43,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:03:43,588 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:03:43,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:03:43,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:03:43,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:03:43,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:03:43,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:03:43,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:03:43,618 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:03:43,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:03:43,619 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:03:43,619 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:03:43,619 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:03:43,619 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:03:43,620 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:03:43,621 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:03:43,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:03:43,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:03:43,622 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:03:43,622 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:03:43,622 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:03:43,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:03:43,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:03:43,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:03:43,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:03:43,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:03:43,623 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd 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 ! call(reach_error())) ) 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 -> 6cb26fc448cefa547e2463448c16c0efba841bf620bbd2ba420ae15e288e3a3f [2024-11-13 15:03:43,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:03:44,014 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:03:44,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:03:44,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:03:44,020 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:03:44,023 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loops-crafted-1/vnew2.c Unable to find full path for "g++" [2024-11-13 15:03:46,014 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:03:46,309 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:03:46,314 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/sv-benchmarks/c/loops-crafted-1/vnew2.c [2024-11-13 15:03:46,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/data/b11091750/f18c052a52c248dfbd2f8cffd7eeabd4/FLAGefa66f3e3 [2024-11-13 15:03:46,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/data/b11091750/f18c052a52c248dfbd2f8cffd7eeabd4 [2024-11-13 15:03:46,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:03:46,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:03:46,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:03:46,381 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:03:46,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:03:46,388 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,389 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f1dcda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46, skipping insertion in model container [2024-11-13 15:03:46,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,412 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:03:46,594 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/sv-benchmarks/c/loops-crafted-1/vnew2.c[403,416] [2024-11-13 15:03:46,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:03:46,633 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:03:46,651 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/sv-benchmarks/c/loops-crafted-1/vnew2.c[403,416] [2024-11-13 15:03:46,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:03:46,687 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:03:46,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46 WrapperNode [2024-11-13 15:03:46,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:03:46,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:03:46,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:03:46,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:03:46,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,736 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2024-11-13 15:03:46,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:03:46,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:03:46,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:03:46,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:03:46,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,777 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:03:46,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,785 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:03:46,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:03:46,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:03:46,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:03:46,802 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (1/1) ... [2024-11-13 15:03:46,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:03:46,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:46,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:03:46,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:03:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:03:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:03:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:03:46,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:03:46,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:03:46,978 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:03:46,982 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:03:47,166 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 15:03:47,167 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:03:47,185 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:03:47,185 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:03:47,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:47 BoogieIcfgContainer [2024-11-13 15:03:47,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:03:47,190 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:03:47,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:03:47,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:03:47,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:03:46" (1/3) ... [2024-11-13 15:03:47,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701e6a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:03:47, skipping insertion in model container [2024-11-13 15:03:47,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:46" (2/3) ... [2024-11-13 15:03:47,197 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@701e6a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:03:47, skipping insertion in model container [2024-11-13 15:03:47,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:47" (3/3) ... [2024-11-13 15:03:47,199 INFO L112 eAbstractionObserver]: Analyzing ICFG vnew2.c [2024-11-13 15:03:47,217 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:03:47,219 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG vnew2.c that has 1 procedures, 13 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:03:47,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:03:47,322 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7f90e056, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:03:47,323 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:03:47,329 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:03:47,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:47,342 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:47,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:47,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:47,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1807060682, now seen corresponding path program 1 times [2024-11-13 15:03:47,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:47,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488311454] [2024-11-13 15:03:47,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:47,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:47,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:47,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:47,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488311454] [2024-11-13 15:03:47,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488311454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:47,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:47,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:03:47,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443468353] [2024-11-13 15:03:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:47,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:03:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:47,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:03:47,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:03:47,655 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:47,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:47,669 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2024-11-13 15:03:47,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:03:47,671 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 15:03:47,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:47,681 INFO L225 Difference]: With dead ends: 22 [2024-11-13 15:03:47,682 INFO L226 Difference]: Without dead ends: 8 [2024-11-13 15:03:47,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:03:47,691 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:47,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:03:47,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2024-11-13 15:03:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2024-11-13 15:03:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-13 15:03:47,732 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2024-11-13 15:03:47,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:47,733 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-11-13 15:03:47,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:47,734 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-13 15:03:47,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:03:47,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:47,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:47,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:03:47,735 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:47,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:47,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1806941518, now seen corresponding path program 1 times [2024-11-13 15:03:47,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:47,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568921378] [2024-11-13 15:03:47,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:47,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:48,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:48,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:48,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568921378] [2024-11-13 15:03:48,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568921378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:48,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:48,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:03:48,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410943558] [2024-11-13 15:03:48,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:48,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:03:48,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:48,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:03:48,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:48,116 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:48,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:48,147 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2024-11-13 15:03:48,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:03:48,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 15:03:48,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:48,148 INFO L225 Difference]: With dead ends: 13 [2024-11-13 15:03:48,148 INFO L226 Difference]: Without dead ends: 9 [2024-11-13 15:03:48,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:48,150 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:48,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:03:48,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-13 15:03:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-13 15:03:48,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:48,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 15:03:48,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2024-11-13 15:03:48,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:48,154 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 15:03:48,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 15:03:48,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 15:03:48,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:48,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:48,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:03:48,155 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:48,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash 182218005, now seen corresponding path program 1 times [2024-11-13 15:03:48,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:48,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878058702] [2024-11-13 15:03:48,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:48,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:03:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658501738] [2024-11-13 15:03:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:48,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:03:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:48,284 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:03:48,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:03:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:48,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 15:03:48,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:48,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:03:49,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:49,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:49,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878058702] [2024-11-13 15:03:49,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:03:49,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658501738] [2024-11-13 15:03:49,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658501738] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:03:49,259 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:03:49,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 15:03:49,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852541250] [2024-11-13 15:03:49,259 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:03:49,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:03:49,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:49,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:03:49,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:03:49,261 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:51,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:03:51,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:51,353 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2024-11-13 15:03:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:03:51,355 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 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 8 [2024-11-13 15:03:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:51,355 INFO L225 Difference]: With dead ends: 18 [2024-11-13 15:03:51,356 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 15:03:51,356 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:03:51,357 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:51,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 15 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 15:03:51,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 15:03:51,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 15:03:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 15:03:51,364 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-13 15:03:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:51,364 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 15:03:51,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:51,364 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 15:03:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 15:03:51,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:51,365 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:51,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:03:51,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:03:51,566 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:51,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:51,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1212479246, now seen corresponding path program 2 times [2024-11-13 15:03:51,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:51,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180825823] [2024-11-13 15:03:51,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:51,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:03:51,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988129053] [2024-11-13 15:03:51,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:03:51,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:03:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:51,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:03:51,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:03:51,723 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:03:51,723 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:03:51,724 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-13 15:03:51,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:52,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:03:53,143 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:53,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:53,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180825823] [2024-11-13 15:03:53,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:03:53,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988129053] [2024-11-13 15:03:53,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988129053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:03:53,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:03:53,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-13 15:03:53,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914295394] [2024-11-13 15:03:53,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:03:53,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-13 15:03:53,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:53,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-13 15:03:53,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-13 15:03:53,146 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:03:57,235 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (mod |c_ULTIMATE.start_main_~j~0#1| 4294967296)) (.cse0 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse5 (mod (+ 9 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse2 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse7 (mod (+ 6 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse4 (mod (+ 2 c_~SIZE~0) 4294967296))) (and (= .cse0 .cse1) (or (< .cse2 (+ .cse0 1)) (let ((.cse3 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 3) 4294967296))) (and (= .cse3 (mod (+ 3 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse2 .cse4) 4294967296) 0)) (= .cse2 .cse3)))) (or (let ((.cse6 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 9) 4294967296))) (and (= .cse5 .cse6) (not (= (mod (mod .cse5 .cse4) 4294967296) 0)) (= (mod (+ 9 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse6))) (< .cse5 (+ .cse7 1))) (= .cse1 (mod |c_ULTIMATE.start_main_~k~0#1| 4294967296)) (not (= (mod (mod .cse0 .cse4) 4294967296) 0)) (let ((.cse8 (mod (+ 12 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (or (< .cse8 (+ .cse5 1)) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 12) 4294967296))) (and (= .cse8 .cse9) (not (= (mod (mod .cse8 .cse4) 4294967296) 0)) (= (mod (+ 12 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse9))))) (= 20000001 c_~SIZE~0) (or (< .cse7 (+ .cse2 1)) (let ((.cse10 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 6) 4294967296))) (and (= .cse10 (mod (+ 6 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (= .cse10 .cse7) (not (= (mod (mod .cse7 .cse4) 4294967296) 0))))))) is different from false [2024-11-13 15:04:05,755 WARN L286 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 76 DAG size of output: 64 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:04:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:15,681 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-13 15:04:15,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 15:04:15,682 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 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 11 [2024-11-13 15:04:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:15,682 INFO L225 Difference]: With dead ends: 27 [2024-11-13 15:04:15,683 INFO L226 Difference]: Without dead ends: 18 [2024-11-13 15:04:15,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=162, Invalid=393, Unknown=1, NotChecked=44, Total=600 [2024-11-13 15:04:15,684 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 27 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:15,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 27 Unchecked, 1.8s Time] [2024-11-13 15:04:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-13 15:04:15,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-13 15:04:15,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:04:15,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-13 15:04:15,699 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2024-11-13 15:04:15,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:15,699 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-13 15:04:15,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:04:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-13 15:04:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 15:04:15,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:15,701 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:04:15,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:04:15,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-13 15:04:15,905 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:15,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1448973906, now seen corresponding path program 3 times [2024-11-13 15:04:15,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:04:15,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262806959] [2024-11-13 15:04:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:04:15,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:04:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 15:04:15,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818438866] [2024-11-13 15:04:15,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 15:04:15,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:04:15,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:04:15,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:04:15,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21196088-ced3-4d9c-b6ce-372f3ce6e3cd/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:04:16,157 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-13 15:04:16,157 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:04:16,159 WARN L253 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-13 15:04:16,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:04:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:04:16,783 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:04:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:04:19,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:04:19,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262806959] [2024-11-13 15:04:19,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 15:04:19,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818438866] [2024-11-13 15:04:19,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818438866] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:04:19,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:04:19,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 29 [2024-11-13 15:04:19,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382856313] [2024-11-13 15:04:19,004 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:04:19,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-13 15:04:19,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:04:19,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-13 15:04:19,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=643, Unknown=0, NotChecked=0, Total=870 [2024-11-13 15:04:19,006 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 30 states, 30 states have (on average 1.1) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:04:23,253 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse24 (mod (+ 9 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse8 (mod (+ 6 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse13 (mod (+ 3 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse0 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse3 (+ .cse0 1)) (.cse1 (mod |c_ULTIMATE.start_main_~j~0#1| 4294967296)) (.cse7 (+ .cse13 1)) (.cse10 (mod (+ 15 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse16 (mod (+ 12 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse6 (mod |c_ULTIMATE.start_main_~n~0#1| 4294967296)) (.cse19 (+ .cse8 1)) (.cse15 (+ .cse24 1)) (.cse5 (mod (+ 2 c_~SIZE~0) 4294967296))) (and (= .cse0 .cse1) (let ((.cse2 (mod (+ 21 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (or (< .cse2 .cse3) (let ((.cse4 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 21) 4294967296))) (and (= (mod (+ 21 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse4) (not (= (mod (mod .cse2 .cse5) 4294967296) 0)) (= .cse4 .cse2))))) (or (< .cse6 .cse7) (< .cse8 .cse6) (let ((.cse9 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 6) 4294967296))) (and (= .cse9 (mod (+ 6 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (= .cse9 .cse8) (not (= (mod (mod .cse8 .cse5) 4294967296) 0))))) (let ((.cse11 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 18) 4294967296))) (or (< .cse6 (+ .cse10 1)) (< .cse11 .cse6) (let ((.cse12 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 18) 4294967296))) (and (not (= (mod (mod .cse11 .cse5) 4294967296) 0)) (= .cse12 .cse11) (= .cse12 (mod (+ 18 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)))))) (or (< .cse13 .cse6) (let ((.cse14 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 3) 4294967296))) (and (= .cse14 (mod (+ 3 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse13 .cse5) 4294967296) 0)) (= .cse13 .cse14))) (< .cse6 .cse3)) (= .cse1 (mod |c_ULTIMATE.start_main_~k~0#1| 4294967296)) (or (< .cse6 .cse15) (< .cse16 .cse6) (let ((.cse17 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 12) 4294967296))) (and (= .cse16 .cse17) (not (= (mod (mod .cse16 .cse5) 4294967296) 0)) (= (mod (+ 12 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse17)))) (not (= (mod (mod .cse0 .cse5) 4294967296) 0)) (let ((.cse18 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 27) 4294967296))) (or (< .cse18 .cse19) (let ((.cse20 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 27) 4294967296))) (and (= (mod (+ 27 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse20) (= .cse18 .cse20) (not (= (mod (mod .cse18 .cse5) 4294967296) 0)))))) (let ((.cse21 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 24) 4294967296))) (or (< .cse21 .cse7) (let ((.cse22 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 24) 4294967296))) (and (not (= (mod (mod .cse21 .cse5) 4294967296) 0)) (= .cse22 (mod (+ |c_ULTIMATE.start_main_~k~0#1| 24) 4294967296)) (= .cse22 .cse21))))) (or (let ((.cse23 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 15) 4294967296))) (and (= .cse10 .cse23) (= .cse23 (mod (+ 15 |c_ULTIMATE.start_main_~k~0#1|) 4294967296)) (not (= (mod (mod .cse10 .cse5) 4294967296) 0)))) (< .cse10 .cse6) (< .cse6 (+ .cse16 1))) (= 20000001 c_~SIZE~0) (or (< .cse24 .cse6) (let ((.cse25 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 9) 4294967296))) (and (= .cse24 .cse25) (not (= (mod (mod .cse24 .cse5) 4294967296) 0)) (= (mod (+ 9 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse25))) (< .cse6 .cse19)) (let ((.cse26 (mod (+ 30 |c_ULTIMATE.start_main_~i~0#1|) 4294967296))) (or (< .cse26 .cse15) (let ((.cse27 (mod (+ |c_ULTIMATE.start_main_~j~0#1| 30) 4294967296))) (and (= (mod (+ 30 |c_ULTIMATE.start_main_~k~0#1|) 4294967296) .cse27) (= .cse26 .cse27) (not (= (mod (mod .cse26 .cse5) 4294967296) 0))))))))) is different from false [2024-11-13 15:06:45,364 WARN L286 SmtUtils]: Spent 2.27m on a formula simplification that was a NOOP. DAG size: 181 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:10:02,612 WARN L286 SmtUtils]: Spent 3.11m on a formula simplification. DAG size of input: 178 DAG size of output: 115 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:10:07,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:10:09,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:10:39,162 WARN L286 SmtUtils]: Spent 16.59s on a formula simplification that was a NOOP. DAG size: 165 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:14:00,170 WARN L286 SmtUtils]: Spent 3.20m on a formula simplification. DAG size of input: 162 DAG size of output: 106 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:14:01,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:14:05,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:15:16,446 WARN L286 SmtUtils]: Spent 1.05m on a formula simplification that was a NOOP. DAG size: 149 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 15:15:20,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 15:18:57,731 WARN L286 SmtUtils]: Spent 3.25m on a formula simplification. DAG size of input: 146 DAG size of output: 97 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)