./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/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_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/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 64bit --witnessprinter.graph.data.programhash a17878a5128bf705eaf3e8cc839ad0f7d5b7dcfdf1e66ee241171f7fff28965b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:03:09,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:03:09,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 15:03:09,209 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:03:09,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:03:09,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:03:09,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:03:09,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:03:09,232 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:03:09,233 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:03:09,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:03:09,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:03:09,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:03:09,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:03:09,233 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:03:09,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:03:09,234 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:03:09,235 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:03:09,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:03:09,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:03:09,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:03:09,236 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:03:09,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:03:09,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:03:09,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:03:09,237 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_18d5dfae-7cab-483c-b28f-7af51facbf77/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17878a5128bf705eaf3e8cc839ad0f7d5b7dcfdf1e66ee241171f7fff28965b [2024-11-13 15:03:09,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:03:09,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:03:09,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:03:09,558 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:03:09,558 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:03:09,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c Unable to find full path for "g++" [2024-11-13 15:03:11,506 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:03:11,796 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:03:11,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c [2024-11-13 15:03:11,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data/c6920fd2f/5a1bcb641db1404bbc8ebb73f5075169/FLAGcf3b0c2e3 [2024-11-13 15:03:11,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data/c6920fd2f/5a1bcb641db1404bbc8ebb73f5075169 [2024-11-13 15:03:11,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:03:11,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:03:11,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:03:11,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:03:11,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:03:11,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:03:11" (1/1) ... [2024-11-13 15:03:11,834 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c51036b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:11, skipping insertion in model container [2024-11-13 15:03:11,834 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:03:11" (1/1) ... [2024-11-13 15:03:11,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:03:12,036 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_18d5dfae-7cab-483c-b28f-7af51facbf77/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c[1244,1257] [2024-11-13 15:03:12,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:03:12,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:03:12,208 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_18d5dfae-7cab-483c-b28f-7af51facbf77/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c[1244,1257] [2024-11-13 15:03:12,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:03:12,314 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:03:12,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12 WrapperNode [2024-11-13 15:03:12,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:03:12,317 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:03:12,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:03:12,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:03:12,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,435 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 642 [2024-11-13 15:03:12,436 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:03:12,437 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:03:12,437 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:03:12,437 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:03:12,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,495 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:03:12,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:03:12,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:03:12,555 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:03:12,555 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:03:12,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (1/1) ... [2024-11-13 15:03:12,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:03:12,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:12,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:03:12,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:03:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:03:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:03:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:03:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:03:12,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:03:12,795 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:03:12,797 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:03:13,965 INFO L? ?]: Removed 297 outVars from TransFormulas that were not future-live. [2024-11-13 15:03:13,966 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:03:13,983 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:03:13,984 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:03:13,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:13 BoogieIcfgContainer [2024-11-13 15:03:13,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:03:13,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:03:13,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:03:13,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:03:13,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:03:11" (1/3) ... [2024-11-13 15:03:13,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561c595d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:03:13, skipping insertion in model container [2024-11-13 15:03:13,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:12" (2/3) ... [2024-11-13 15:03:13,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561c595d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:03:13, skipping insertion in model container [2024-11-13 15:03:13,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:13" (3/3) ... [2024-11-13 15:03:13,998 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul4.c [2024-11-13 15:03:14,016 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:03:14,018 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.mul4.c that has 1 procedures, 182 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:03:14,128 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:03:14,145 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;@7571cc73, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:03:14,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:03:14,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 182 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 181 states have internal predecessors, (269), 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 15:03:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-13 15:03:14,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:14,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:14,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:14,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:14,170 INFO L85 PathProgramCache]: Analyzing trace with hash -461519839, now seen corresponding path program 1 times [2024-11-13 15:03:14,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:14,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588084936] [2024-11-13 15:03:14,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:14,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:15,476 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 15:03:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:15,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588084936] [2024-11-13 15:03:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588084936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:15,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:15,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:03:15,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98500916] [2024-11-13 15:03:15,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:15,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:03:15,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:15,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:03:15,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:15,524 INFO L87 Difference]: Start difference. First operand has 182 states, 180 states have (on average 1.4944444444444445) internal successors, (269), 181 states have internal predecessors, (269), 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 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 15:03:15,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:15,628 INFO L93 Difference]: Finished difference Result 297 states and 441 transitions. [2024-11-13 15:03:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:03:15,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2024-11-13 15:03:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:15,648 INFO L225 Difference]: With dead ends: 297 [2024-11-13 15:03:15,649 INFO L226 Difference]: Without dead ends: 181 [2024-11-13 15:03:15,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:15,657 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:15,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 783 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:03:15,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-13 15:03:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-13 15:03:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.4833333333333334) internal successors, (267), 180 states have internal predecessors, (267), 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 15:03:15,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions. [2024-11-13 15:03:15,727 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 65 [2024-11-13 15:03:15,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:15,728 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 267 transitions. [2024-11-13 15:03:15,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 15:03:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions. [2024-11-13 15:03:15,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-13 15:03:15,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:15,734 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:15,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:03:15,735 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:15,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:15,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1420517578, now seen corresponding path program 1 times [2024-11-13 15:03:15,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:15,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516908900] [2024-11-13 15:03:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:15,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:15,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:16,161 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 15:03:16,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:16,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516908900] [2024-11-13 15:03:16,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516908900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:16,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:16,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:03:16,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792643558] [2024-11-13 15:03:16,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:16,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:03:16,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:16,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:03:16,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:16,166 INFO L87 Difference]: Start difference. First operand 181 states and 267 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 15:03:16,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:16,224 INFO L93 Difference]: Finished difference Result 298 states and 439 transitions. [2024-11-13 15:03:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:03:16,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 66 [2024-11-13 15:03:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:16,230 INFO L225 Difference]: With dead ends: 298 [2024-11-13 15:03:16,230 INFO L226 Difference]: Without dead ends: 183 [2024-11-13 15:03:16,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:16,232 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:16,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 779 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:03:16,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-13 15:03:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-13 15:03:16,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 1.478021978021978) internal successors, (269), 182 states have internal predecessors, (269), 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 15:03:16,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 269 transitions. [2024-11-13 15:03:16,258 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 269 transitions. Word has length 66 [2024-11-13 15:03:16,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:16,259 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 269 transitions. [2024-11-13 15:03:16,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 15:03:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 269 transitions. [2024-11-13 15:03:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-13 15:03:16,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:16,265 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:16,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:03:16,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:16,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2110629786, now seen corresponding path program 1 times [2024-11-13 15:03:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752096932] [2024-11-13 15:03:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:17,027 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 15:03:17,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:17,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752096932] [2024-11-13 15:03:17,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752096932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:17,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:17,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:03:17,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167980869] [2024-11-13 15:03:17,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:17,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:03:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:17,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:03:17,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:03:17,030 INFO L87 Difference]: Start difference. First operand 183 states and 269 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 15:03:17,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:17,131 INFO L93 Difference]: Finished difference Result 304 states and 446 transitions. [2024-11-13 15:03:17,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:03:17,132 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-13 15:03:17,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:17,133 INFO L225 Difference]: With dead ends: 304 [2024-11-13 15:03:17,134 INFO L226 Difference]: Without dead ends: 187 [2024-11-13 15:03:17,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:03:17,139 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 212 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:17,139 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 775 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:03:17,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-13 15:03:17,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2024-11-13 15:03:17,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.4702702702702704) internal successors, (272), 185 states have internal predecessors, (272), 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 15:03:17,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 272 transitions. [2024-11-13 15:03:17,159 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 272 transitions. Word has length 67 [2024-11-13 15:03:17,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:17,160 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 272 transitions. [2024-11-13 15:03:17,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 15:03:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 272 transitions. [2024-11-13 15:03:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 15:03:17,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:17,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:17,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:03:17,165 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:17,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:17,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1725407879, now seen corresponding path program 1 times [2024-11-13 15:03:17,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:17,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445975002] [2024-11-13 15:03:17,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:17,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:18,741 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 15:03:18,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:18,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445975002] [2024-11-13 15:03:18,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445975002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:18,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:18,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-13 15:03:18,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973959533] [2024-11-13 15:03:18,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:18,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 15:03:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:18,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 15:03:18,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:03:18,746 INFO L87 Difference]: Start difference. First operand 186 states and 272 transitions. Second operand has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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 15:03:18,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:18,935 INFO L93 Difference]: Finished difference Result 329 states and 479 transitions. [2024-11-13 15:03:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:03:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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 68 [2024-11-13 15:03:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:18,940 INFO L225 Difference]: With dead ends: 329 [2024-11-13 15:03:18,940 INFO L226 Difference]: Without dead ends: 209 [2024-11-13 15:03:18,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:03:18,943 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 24 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:18,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1530 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:03:18,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-13 15:03:18,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 194. [2024-11-13 15:03:18,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.4663212435233162) internal successors, (283), 193 states have internal predecessors, (283), 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 15:03:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 283 transitions. [2024-11-13 15:03:18,973 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 283 transitions. Word has length 68 [2024-11-13 15:03:18,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:18,974 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 283 transitions. [2024-11-13 15:03:18,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.8) internal successors, (68), 10 states have internal predecessors, (68), 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 15:03:18,974 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 283 transitions. [2024-11-13 15:03:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:03:18,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:18,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:18,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:03:18,979 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:18,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:18,980 INFO L85 PathProgramCache]: Analyzing trace with hash -158687039, now seen corresponding path program 1 times [2024-11-13 15:03:18,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:18,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224890703] [2024-11-13 15:03:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:18,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:20,029 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 15:03:20,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:20,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224890703] [2024-11-13 15:03:20,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224890703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:20,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:20,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:03:20,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52806525] [2024-11-13 15:03:20,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:20,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:03:20,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:20,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:03:20,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:03:20,032 INFO L87 Difference]: Start difference. First operand 194 states and 283 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 15:03:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:20,172 INFO L93 Difference]: Finished difference Result 340 states and 494 transitions. [2024-11-13 15:03:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:03:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2024-11-13 15:03:20,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:20,174 INFO L225 Difference]: With dead ends: 340 [2024-11-13 15:03:20,174 INFO L226 Difference]: Without dead ends: 212 [2024-11-13 15:03:20,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:03:20,175 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 21 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:20,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1521 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:03:20,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-13 15:03:20,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 200. [2024-11-13 15:03:20,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.4623115577889447) internal successors, (291), 199 states have internal predecessors, (291), 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 15:03:20,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 291 transitions. [2024-11-13 15:03:20,184 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 291 transitions. Word has length 69 [2024-11-13 15:03:20,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:20,185 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 291 transitions. [2024-11-13 15:03:20,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 15:03:20,185 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 291 transitions. [2024-11-13 15:03:20,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:03:20,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:20,186 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:20,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:03:20,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:20,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:20,187 INFO L85 PathProgramCache]: Analyzing trace with hash -814345339, now seen corresponding path program 1 times [2024-11-13 15:03:20,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:20,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771230841] [2024-11-13 15:03:20,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:20,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:21,070 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 15:03:21,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:21,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771230841] [2024-11-13 15:03:21,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771230841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:21,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:21,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 15:03:21,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977430963] [2024-11-13 15:03:21,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:21,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 15:03:21,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:21,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 15:03:21,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:03:21,076 INFO L87 Difference]: Start difference. First operand 200 states and 291 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 15:03:21,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:21,264 INFO L93 Difference]: Finished difference Result 332 states and 482 transitions. [2024-11-13 15:03:21,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:03:21,264 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 69 [2024-11-13 15:03:21,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:21,266 INFO L225 Difference]: With dead ends: 332 [2024-11-13 15:03:21,266 INFO L226 Difference]: Without dead ends: 198 [2024-11-13 15:03:21,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-13 15:03:21,268 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 214 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1703 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:21,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1703 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:03:21,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-13 15:03:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 195. [2024-11-13 15:03:21,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 1.4639175257731958) internal successors, (284), 194 states have internal predecessors, (284), 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 15:03:21,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 284 transitions. [2024-11-13 15:03:21,279 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 284 transitions. Word has length 69 [2024-11-13 15:03:21,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:21,279 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 284 transitions. [2024-11-13 15:03:21,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 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 15:03:21,280 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 284 transitions. [2024-11-13 15:03:21,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:03:21,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:21,281 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:21,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:03:21,282 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:21,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:21,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1464837146, now seen corresponding path program 1 times [2024-11-13 15:03:21,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:21,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761897342] [2024-11-13 15:03:21,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:21,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:21,777 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 15:03:21,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:21,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761897342] [2024-11-13 15:03:21,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761897342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:21,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:03:21,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421033901] [2024-11-13 15:03:21,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:21,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:03:21,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:21,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:03:21,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:03:21,780 INFO L87 Difference]: Start difference. First operand 195 states and 284 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:21,902 INFO L93 Difference]: Finished difference Result 443 states and 641 transitions. [2024-11-13 15:03:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:03:21,903 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2024-11-13 15:03:21,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:21,904 INFO L225 Difference]: With dead ends: 443 [2024-11-13 15:03:21,904 INFO L226 Difference]: Without dead ends: 314 [2024-11-13 15:03:21,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:03:21,906 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 364 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:21,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 759 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:03:21,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-13 15:03:21,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 231. [2024-11-13 15:03:21,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.4608695652173913) internal successors, (336), 230 states have internal predecessors, (336), 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 15:03:21,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 336 transitions. [2024-11-13 15:03:21,928 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 336 transitions. Word has length 69 [2024-11-13 15:03:21,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:21,929 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 336 transitions. [2024-11-13 15:03:21,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:21,929 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 336 transitions. [2024-11-13 15:03:21,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:03:21,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:21,930 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:21,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:03:21,930 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:21,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:21,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1696516813, now seen corresponding path program 1 times [2024-11-13 15:03:21,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:21,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617058208] [2024-11-13 15:03:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:21,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:22,451 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 15:03:22,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:22,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617058208] [2024-11-13 15:03:22,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617058208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:22,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:22,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:03:22,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245258717] [2024-11-13 15:03:22,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:22,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:03:22,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:22,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:03:22,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:03:22,455 INFO L87 Difference]: Start difference. First operand 231 states and 336 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:22,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:22,678 INFO L93 Difference]: Finished difference Result 401 states and 575 transitions. [2024-11-13 15:03:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:03:22,678 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2024-11-13 15:03:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:22,680 INFO L225 Difference]: With dead ends: 401 [2024-11-13 15:03:22,680 INFO L226 Difference]: Without dead ends: 268 [2024-11-13 15:03:22,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:03:22,681 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 296 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:22,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 955 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:03:22,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-13 15:03:22,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 229. [2024-11-13 15:03:22,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 228 states have (on average 1.4517543859649122) internal successors, (331), 228 states have internal predecessors, (331), 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 15:03:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 331 transitions. [2024-11-13 15:03:22,691 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 331 transitions. Word has length 69 [2024-11-13 15:03:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:22,691 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 331 transitions. [2024-11-13 15:03:22,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 331 transitions. [2024-11-13 15:03:22,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:03:22,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:22,692 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:22,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:03:22,693 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:22,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:22,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1079174156, now seen corresponding path program 1 times [2024-11-13 15:03:22,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:22,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499202341] [2024-11-13 15:03:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:22,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:23,121 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 15:03:23,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:23,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499202341] [2024-11-13 15:03:23,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499202341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:23,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:23,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:03:23,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943784926] [2024-11-13 15:03:23,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:23,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:03:23,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:23,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:03:23,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:03:23,123 INFO L87 Difference]: Start difference. First operand 229 states and 331 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:23,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:23,209 INFO L93 Difference]: Finished difference Result 433 states and 620 transitions. [2024-11-13 15:03:23,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:03:23,210 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2024-11-13 15:03:23,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:23,212 INFO L225 Difference]: With dead ends: 433 [2024-11-13 15:03:23,212 INFO L226 Difference]: Without dead ends: 298 [2024-11-13 15:03:23,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:03:23,213 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 454 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:23,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 764 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:03:23,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-13 15:03:23,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 227. [2024-11-13 15:03:23,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4424778761061947) internal successors, (326), 226 states have internal predecessors, (326), 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 15:03:23,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 326 transitions. [2024-11-13 15:03:23,223 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 326 transitions. Word has length 69 [2024-11-13 15:03:23,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:23,224 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 326 transitions. [2024-11-13 15:03:23,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:23,224 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 326 transitions. [2024-11-13 15:03:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 15:03:23,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:23,225 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:23,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:03:23,226 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:23,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:23,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1343504549, now seen corresponding path program 1 times [2024-11-13 15:03:23,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:23,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045639887] [2024-11-13 15:03:23,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:23,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:23,671 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 15:03:23,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:23,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045639887] [2024-11-13 15:03:23,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045639887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:23,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:23,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:03:23,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276127340] [2024-11-13 15:03:23,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:23,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:03:23,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:23,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:03:23,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:03:23,673 INFO L87 Difference]: Start difference. First operand 227 states and 326 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:23,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:23,739 INFO L93 Difference]: Finished difference Result 356 states and 512 transitions. [2024-11-13 15:03:23,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:03:23,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 69 [2024-11-13 15:03:23,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:23,741 INFO L225 Difference]: With dead ends: 356 [2024-11-13 15:03:23,741 INFO L226 Difference]: Without dead ends: 219 [2024-11-13 15:03:23,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:03:23,742 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 247 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:23,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 763 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:03:23,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-13 15:03:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-11-13 15:03:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.4495412844036697) internal successors, (316), 218 states have internal predecessors, (316), 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 15:03:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 316 transitions. [2024-11-13 15:03:23,762 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 316 transitions. Word has length 69 [2024-11-13 15:03:23,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:23,763 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 316 transitions. [2024-11-13 15:03:23,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 15:03:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 316 transitions. [2024-11-13 15:03:23,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:03:23,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:23,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:23,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:03:23,764 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:23,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:23,764 INFO L85 PathProgramCache]: Analyzing trace with hash 2025898208, now seen corresponding path program 1 times [2024-11-13 15:03:23,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:23,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015411788] [2024-11-13 15:03:23,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:23,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:24,269 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 15:03:24,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:03:24,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015411788] [2024-11-13 15:03:24,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015411788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:24,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:24,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:03:24,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369281712] [2024-11-13 15:03:24,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:24,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:03:24,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:03:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:03:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:03:24,273 INFO L87 Difference]: Start difference. First operand 219 states and 316 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 15:03:24,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:24,362 INFO L93 Difference]: Finished difference Result 387 states and 553 transitions. [2024-11-13 15:03:24,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:03:24,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 70 [2024-11-13 15:03:24,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:24,365 INFO L225 Difference]: With dead ends: 387 [2024-11-13 15:03:24,365 INFO L226 Difference]: Without dead ends: 258 [2024-11-13 15:03:24,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:03:24,367 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 334 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:24,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 760 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 15:03:24,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-11-13 15:03:24,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 227. [2024-11-13 15:03:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4380530973451326) internal successors, (325), 226 states have internal predecessors, (325), 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 15:03:24,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 325 transitions. [2024-11-13 15:03:24,389 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 325 transitions. Word has length 70 [2024-11-13 15:03:24,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:24,389 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 325 transitions. [2024-11-13 15:03:24,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 15:03:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 325 transitions. [2024-11-13 15:03:24,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-13 15:03:24,390 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:24,391 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:24,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:03:24,391 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:24,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2089643758, now seen corresponding path program 1 times [2024-11-13 15:03:24,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:03:24,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557200084] [2024-11-13 15:03:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:24,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:03:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:03:24,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:03:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:03:24,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:03:24,560 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:03:24,561 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:03:24,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 15:03:24,567 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:24,671 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:03:24,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:03:24 BoogieIcfgContainer [2024-11-13 15:03:24,676 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:03:24,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:03:24,677 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:03:24,677 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:03:24,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:13" (3/4) ... [2024-11-13 15:03:24,681 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:03:24,682 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:03:24,685 INFO L158 Benchmark]: Toolchain (without parser) took 12859.38ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 92.4MB in the beginning and 104.6MB in the end (delta: -12.2MB). Peak memory consumption was 154.6MB. Max. memory is 16.1GB. [2024-11-13 15:03:24,685 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:03:24,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.36ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:03:24,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.21ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 65.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:03:24,686 INFO L158 Benchmark]: Boogie Preprocessor took 117.28ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 60.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:03:24,686 INFO L158 Benchmark]: RCFGBuilder took 1431.11ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 43.1MB in the end (delta: 17.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-13 15:03:24,687 INFO L158 Benchmark]: TraceAbstraction took 10687.98ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 42.5MB in the beginning and 104.6MB in the end (delta: -62.0MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2024-11-13 15:03:24,687 INFO L158 Benchmark]: Witness Printer took 6.89ms. Allocated memory is still 285.2MB. Free memory was 104.6MB in the beginning and 104.6MB in the end (delta: 19.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:03:24,689 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 117.4MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.36ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 75.2MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.21ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 65.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 117.28ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 60.3MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1431.11ms. Allocated memory is still 117.4MB. Free memory was 60.3MB in the beginning and 43.1MB in the end (delta: 17.2MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10687.98ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 42.5MB in the beginning and 104.6MB in the end (delta: -62.0MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * Witness Printer took 6.89ms. Allocated memory is still 285.2MB. Free memory was 104.6MB in the beginning and 104.6MB in the end (delta: 19.1kB). There was no memory consumed. 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 168. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 32); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (32 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 64); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (64 - 1); [L35] const SORT_64 mask_SORT_64 = (SORT_64)-1 >> (sizeof(SORT_64) * 8 - 4); [L36] const SORT_64 msb_SORT_64 = (SORT_64)1 << (4 - 1); [L38] const SORT_66 mask_SORT_66 = (SORT_66)-1 >> (sizeof(SORT_66) * 8 - 60); [L39] const SORT_66 msb_SORT_66 = (SORT_66)1 << (60 - 1); [L41] const SORT_10 var_11 = 0; [L42] const SORT_1 var_14 = 0; [L43] const SORT_3 var_24 = 0; [L44] const SORT_1 var_51 = 1; [L45] const SORT_64 var_65 = 0; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_3 input_5; [L50] SORT_1 input_6; [L51] SORT_1 input_7; [L52] SORT_1 input_8; [L53] SORT_1 input_9; [L55] EXPR __VERIFIER_nondet_ulong() & mask_SORT_10 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L55] SORT_10 state_12 = __VERIFIER_nondet_ulong() & mask_SORT_10; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L56] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] EXPR __VERIFIER_nondet_ulong() & mask_SORT_10 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L57] SORT_10 state_18 = __VERIFIER_nondet_ulong() & mask_SORT_10; [L58] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L58] SORT_1 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] EXPR __VERIFIER_nondet_uint() & mask_SORT_3 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L59] SORT_3 state_25 = __VERIFIER_nondet_uint() & mask_SORT_3; [L60] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L60] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] EXPR __VERIFIER_nondet_uint() & mask_SORT_3 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L61] SORT_3 state_30 = __VERIFIER_nondet_uint() & mask_SORT_3; [L62] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L62] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] EXPR __VERIFIER_nondet_uint() & mask_SORT_3 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L63] SORT_3 state_37 = __VERIFIER_nondet_uint() & mask_SORT_3; [L64] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L64] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L65] EXPR __VERIFIER_nondet_uint() & mask_SORT_3 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L65] SORT_3 state_42 = __VERIFIER_nondet_uint() & mask_SORT_3; [L66] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L66] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L67] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L67] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L68] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L68] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L69] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L69] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, var_11=0, var_14=0, var_24=0, var_51=1, var_65=0] [L70] SORT_1 state_92 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] SORT_10 init_13_arg_1 = var_11; [L73] state_12 = init_13_arg_1 [L74] SORT_1 init_16_arg_1 = var_14; [L75] state_15 = init_16_arg_1 [L76] SORT_10 init_19_arg_1 = var_11; [L77] state_18 = init_19_arg_1 [L78] SORT_1 init_21_arg_1 = var_14; [L79] state_20 = init_21_arg_1 [L80] SORT_3 init_26_arg_1 = var_24; [L81] state_25 = init_26_arg_1 [L82] SORT_1 init_28_arg_1 = var_14; [L83] state_27 = init_28_arg_1 [L84] SORT_3 init_31_arg_1 = var_24; [L85] state_30 = init_31_arg_1 [L86] SORT_1 init_33_arg_1 = var_14; [L87] state_32 = init_33_arg_1 [L88] SORT_3 init_38_arg_1 = var_24; [L89] state_37 = init_38_arg_1 [L90] SORT_1 init_40_arg_1 = var_14; [L91] state_39 = init_40_arg_1 [L92] SORT_3 init_43_arg_1 = var_24; [L93] state_42 = init_43_arg_1 [L94] SORT_1 init_45_arg_1 = var_14; [L95] state_44 = init_45_arg_1 [L96] SORT_1 init_70_arg_1 = var_14; [L97] state_69 = init_70_arg_1 [L98] SORT_1 init_75_arg_1 = var_14; [L99] state_74 = init_75_arg_1 [L100] SORT_1 init_88_arg_1 = var_14; [L101] state_87 = init_88_arg_1 [L102] SORT_1 init_93_arg_1 = var_14; [L103] state_92 = init_93_arg_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_12=0, state_15=0, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L106] input_2 = __VERIFIER_nondet_uchar() [L107] input_4 = __VERIFIER_nondet_uint() [L108] input_5 = __VERIFIER_nondet_uint() [L109] input_6 = __VERIFIER_nondet_uchar() [L110] EXPR input_6 & mask_SORT_1 VAL [mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_12=0, state_15=0, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L110] input_6 = input_6 & mask_SORT_1 [L111] input_7 = __VERIFIER_nondet_uchar() [L112] EXPR input_7 & mask_SORT_1 VAL [input_6=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_12=0, state_15=0, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L112] input_7 = input_7 & mask_SORT_1 [L113] input_8 = __VERIFIER_nondet_uchar() [L114] EXPR input_8 & mask_SORT_1 VAL [input_6=0, input_7=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_12=0, state_15=0, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L114] input_8 = input_8 & mask_SORT_1 [L115] input_9 = __VERIFIER_nondet_uchar() [L116] EXPR input_9 & mask_SORT_1 VAL [input_6=0, input_7=0, input_8=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_12=0, state_15=0, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L116] input_9 = input_9 & mask_SORT_1 [L119] SORT_1 var_17_arg_0 = state_15; [L120] SORT_10 var_17_arg_1 = state_12; [L121] SORT_10 var_17_arg_2 = var_11; [L122] SORT_10 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_17=0, var_24=0, var_51=1, var_65=0] [L123] EXPR var_17 & mask_SORT_10 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_20=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L123] var_17 = var_17 & mask_SORT_10 [L124] SORT_1 var_22_arg_0 = state_20; [L125] SORT_10 var_22_arg_1 = state_18; [L126] SORT_10 var_22_arg_2 = var_11; [L127] SORT_10 var_22 = var_22_arg_0 ? var_22_arg_1 : var_22_arg_2; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_17=0, var_22=0, var_24=0, var_51=1, var_65=0] [L128] EXPR var_22 & mask_SORT_10 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_27=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_17=0, var_24=0, var_51=1, var_65=0] [L128] var_22 = var_22 & mask_SORT_10 [L129] SORT_10 var_23_arg_0 = var_17; [L130] SORT_10 var_23_arg_1 = var_22; [L131] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L132] SORT_1 var_29_arg_0 = state_27; [L133] SORT_3 var_29_arg_1 = state_25; [L134] SORT_3 var_29_arg_2 = var_24; [L135] SORT_3 var_29 = var_29_arg_0 ? var_29_arg_1 : var_29_arg_2; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_23=1, var_24=0, var_29=0, var_51=1, var_65=0] [L136] EXPR var_29 & mask_SORT_3 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_32=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_23=1, var_24=0, var_51=1, var_65=0] [L136] var_29 = var_29 & mask_SORT_3 [L137] SORT_1 var_34_arg_0 = state_32; [L138] SORT_3 var_34_arg_1 = state_30; [L139] SORT_3 var_34_arg_2 = var_24; [L140] SORT_3 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_23=1, var_24=0, var_29=0, var_34=0, var_51=1, var_65=0] [L141] EXPR var_34 & mask_SORT_3 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_23=1, var_24=0, var_29=0, var_51=1, var_65=0] [L141] var_34 = var_34 & mask_SORT_3 [L142] SORT_3 var_35_arg_0 = var_29; [L143] SORT_3 var_35_arg_1 = var_34; [L144] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L145] SORT_1 var_36_arg_0 = var_23; [L146] SORT_1 var_36_arg_1 = var_35; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_36_arg_0=1, var_36_arg_1=1, var_51=1, var_65=0] [L147] EXPR var_36_arg_0 & var_36_arg_1 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_39=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L147] SORT_1 var_36 = var_36_arg_0 & var_36_arg_1; [L148] SORT_1 var_41_arg_0 = state_39; [L149] SORT_3 var_41_arg_1 = state_37; [L150] SORT_3 var_41_arg_2 = var_24; [L151] SORT_3 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_36=1, var_41=0, var_51=1, var_65=0] [L152] EXPR var_41 & mask_SORT_3 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_44=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_36=1, var_51=1, var_65=0] [L152] var_41 = var_41 & mask_SORT_3 [L153] SORT_1 var_46_arg_0 = state_44; [L154] SORT_3 var_46_arg_1 = state_42; [L155] SORT_3 var_46_arg_2 = var_24; [L156] SORT_3 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_36=1, var_41=0, var_46=0, var_51=1, var_65=0] [L157] EXPR var_46 & mask_SORT_3 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_36=1, var_41=0, var_51=1, var_65=0] [L157] var_46 = var_46 & mask_SORT_3 [L158] SORT_3 var_47_arg_0 = var_41; [L159] SORT_3 var_47_arg_1 = var_46; [L160] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L161] SORT_1 var_48_arg_0 = var_36; [L162] SORT_1 var_48_arg_1 = var_47; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_48_arg_0=1, var_48_arg_1=1, var_51=1, var_65=0] [L163] EXPR var_48_arg_0 & var_48_arg_1 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L163] SORT_1 var_48 = var_48_arg_0 & var_48_arg_1; [L164] SORT_1 var_52_arg_0 = var_48; [L165] SORT_1 var_52 = ~var_52_arg_0; [L166] SORT_1 var_53_arg_0 = var_51; [L167] SORT_1 var_53_arg_1 = var_52; VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_53_arg_0=1, var_53_arg_1=-2, var_65=0] [L168] EXPR var_53_arg_0 & var_53_arg_1 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L168] SORT_1 var_53 = var_53_arg_0 & var_53_arg_1; [L169] EXPR var_53 & mask_SORT_1 VAL [input_6=0, input_7=0, input_8=0, input_9=0, mask_SORT_10=-1, mask_SORT_1=1, mask_SORT_3=-1, mask_SORT_66=1152921504606846975, state_18=0, state_25=0, state_30=0, state_37=0, state_42=0, state_69=0, state_74=0, state_87=0, state_92=0, var_11=0, var_24=0, var_51=1, var_65=0] [L169] var_53 = var_53 & mask_SORT_1 [L170] SORT_1 bad_54_arg_0 = var_53; [L171] CALL __VERIFIER_assert(!(bad_54_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 182 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2166 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2166 mSDsluCounter, 11092 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8265 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 540 IncrementalHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 2827 mSDtfsCounter, 540 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=7, InterpolantAutomatonStates: 66, 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, 11 MinimizatonAttempts, 255 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 820 NumberOfCodeBlocks, 820 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 739 ConstructedInterpolants, 0 QuantifiedInterpolants, 1982 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:03:24,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/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_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/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 64bit --witnessprinter.graph.data.programhash a17878a5128bf705eaf3e8cc839ad0f7d5b7dcfdf1e66ee241171f7fff28965b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:03:27,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:03:27,771 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-13 15:03:27,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:03:27,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:03:27,841 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:03:27,842 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:03:27,843 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:03:27,843 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:03:27,843 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:03:27,844 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:03:27,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:03:27,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:03:27,845 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:03:27,846 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:03:27,846 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:03:27,846 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:03:27,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:03:27,846 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:03:27,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:03:27,847 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:03:27,847 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:03:27,847 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:03:27,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:03:27,847 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:03:27,848 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:03:27,848 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:03:27,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:03:27,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:03:27,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:03:27,849 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:03:27,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:03:27,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:03:27,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:03:27,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:03:27,850 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:03:27,850 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:03:27,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:03:27,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:03:27,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:03:27,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:03:27,851 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_18d5dfae-7cab-483c-b28f-7af51facbf77/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17878a5128bf705eaf3e8cc839ad0f7d5b7dcfdf1e66ee241171f7fff28965b [2024-11-13 15:03:28,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:03:28,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:03:28,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:03:28,203 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:03:28,203 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:03:28,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c Unable to find full path for "g++" [2024-11-13 15:03:30,166 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:03:30,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:03:30,483 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c [2024-11-13 15:03:30,498 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data/b3e793454/e48d76b303684cbfb159acf496164e3f/FLAGfead2a04e [2024-11-13 15:03:30,525 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/data/b3e793454/e48d76b303684cbfb159acf496164e3f [2024-11-13 15:03:30,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:03:30,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:03:30,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:03:30,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:03:30,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:03:30,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:30,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74ab5621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30, skipping insertion in model container [2024-11-13 15:03:30,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:30,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:03:30,757 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_18d5dfae-7cab-483c-b28f-7af51facbf77/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c[1244,1257] [2024-11-13 15:03:30,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:03:30,872 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:03:30,884 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_18d5dfae-7cab-483c-b28f-7af51facbf77/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mul4.c[1244,1257] [2024-11-13 15:03:30,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:03:30,945 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:03:30,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30 WrapperNode [2024-11-13 15:03:30,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:03:30,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:03:30,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:03:30,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:03:30,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:30,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:30,993 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 298 [2024-11-13 15:03:30,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:03:30,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:03:30,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:03:30,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:03:31,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,009 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,027 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:03:31,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,054 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,061 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:03:31,064 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:03:31,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:03:31,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:03:31,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (1/1) ... [2024-11-13 15:03:31,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:03:31,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:31,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:03:31,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:03:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:03:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:03:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:03:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:03:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:03:31,276 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:03:31,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:03:31,855 INFO L? ?]: Removed 86 outVars from TransFormulas that were not future-live. [2024-11-13 15:03:31,855 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:03:31,870 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:03:31,870 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:03:31,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:31 BoogieIcfgContainer [2024-11-13 15:03:31,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:03:31,875 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:03:31,875 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:03:31,881 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:03:31,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:03:30" (1/3) ... [2024-11-13 15:03:31,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d4b8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:03:31, skipping insertion in model container [2024-11-13 15:03:31,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:03:30" (2/3) ... [2024-11-13 15:03:31,883 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d4b8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:03:31, skipping insertion in model container [2024-11-13 15:03:31,883 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:03:31" (3/3) ... [2024-11-13 15:03:31,885 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mul4.c [2024-11-13 15:03:31,903 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:03:31,906 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.mul4.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:03:31,975 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:03:31,994 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;@281d0c39, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:03:31,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:03:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 15:03:32,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 15:03:32,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:32,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 15:03:32,012 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:32,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:32,019 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 15:03:32,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:32,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1316770191] [2024-11-13 15:03:32,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:32,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:03:32,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:32,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:03:32,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:03:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:32,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-13 15:03:32,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:33,505 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 15:03:33,505 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:03:33,506 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:03:33,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316770191] [2024-11-13 15:03:33,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316770191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:03:33,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:03:33,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:03:33,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156775044] [2024-11-13 15:03:33,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:03:33,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:03:33,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:03:33,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:03:33,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:33,549 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 15:03:33,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:03:33,773 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2024-11-13 15:03:33,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:03:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-11-13 15:03:33,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:03:33,784 INFO L225 Difference]: With dead ends: 17 [2024-11-13 15:03:33,784 INFO L226 Difference]: Without dead ends: 9 [2024-11-13 15:03:33,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:03:33,791 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:03:33,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 15:03:33,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-13 15:03:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-13 15:03:33,825 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 15:03:33,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 15:03:33,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 15:03:33,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:03:33,833 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 15:03:33,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 15:03:33,834 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 15:03:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 15:03:33,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:03:33,835 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 15:03:33,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:03:34,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:03:34,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:03:34,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:03:34,042 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 15:03:34,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:03:34,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306090910] [2024-11-13 15:03:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:03:34,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:03:34,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:03:34,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:03:34,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:03:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:03:34,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 83 conjuncts are in the unsatisfiable core [2024-11-13 15:03:34,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:03:37,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:03:37,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:04:04,157 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse16 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_74~0#1|)) (.cse18 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_92~0#1|))) (let ((.cse13 (and (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| (_ BitVec 64))) (not (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|)))) .cse18)) (.cse15 (and .cse18 (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| (_ BitVec 64))) (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_17_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|))))) (.cse17 (not .cse16)) (.cse19 (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| (_ BitVec 64))) (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|)))) (.cse33 (forall ((|v_ULTIMATE.start_main_~var_53_arg_0~0#1_10| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_0~0#1_10|))))))))) (.cse31 (forall ((|v_ULTIMATE.start_main_~var_53_arg_0~0#1_10| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_0~0#1_10|))))))))) (.cse20 (and (forall ((|ULTIMATE.start_main_~mask_SORT_10~0#1| (_ BitVec 64)) (|v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| (_ BitVec 64))) (not (= (bvand |c_ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~mask_SORT_10~0#1|) (bvand |v_ULTIMATE.start_main_~var_22_arg_1~0#1_10| |ULTIMATE.start_main_~mask_SORT_10~0#1|)))) (not .cse18))) (.cse7 (= (_ bv0 8) |c_ULTIMATE.start_main_~input_9~0#1|))) (let ((.cse36 (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |c_ULTIMATE.start_main_~state_42~0#1|)) (.cse11 (not .cse7)) (.cse8 (and (or (and (or .cse31 .cse13) (or .cse33 .cse15)) .cse16) (or .cse17 (and (or .cse18 .cse19 .cse33) (or .cse31 .cse20)))))) (let ((.cse9 (or .cse11 .cse8)) (.cse21 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 32))) (not (= .cse36 (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_5~0#1|))))) (.cse25 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 32))) (= .cse36 (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_5~0#1|)))) (.cse1 (= (_ bv0 8) |c_ULTIMATE.start_main_~input_8~0#1|)) (.cse34 (or (forall ((|ULTIMATE.start_main_~input_4~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~state_30~0#1_9| (_ BitVec 32))) (= (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_4~0#1|) (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |v_ULTIMATE.start_main_~state_30~0#1_9|))) .cse33)) (.cse35 (forall ((|ULTIMATE.start_main_~input_4~0#1| (_ BitVec 32)) (|v_ULTIMATE.start_main_~state_30~0#1_9| (_ BitVec 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |ULTIMATE.start_main_~input_4~0#1|) (bvand |c_ULTIMATE.start_main_~mask_SORT_3~0#1| |v_ULTIMATE.start_main_~state_30~0#1_9|)))))) (let ((.cse24 (and .cse34 (or .cse33 .cse35))) (.cse22 (and .cse34 (or .cse31 .cse35))) (.cse6 (not .cse1)) (.cse2 (and .cse9 (or .cse7 (let ((.cse32 (or .cse25 .cse33))) (let ((.cse30 (and .cse32 (or .cse21 .cse33))) (.cse29 (and (or .cse31 .cse21) .cse32))) (and (or (and (or .cse13 .cse29) (or .cse30 .cse15)) .cse16) (or .cse17 (and (or .cse18 .cse19 .cse30) (or .cse20 .cse29)))))))))) (let ((.cse0 (or .cse6 .cse2)) (.cse3 ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_9~0#1|)) (.cse27 ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_8~0#1|)) (.cse10 (and (or (and (or .cse24 .cse15) (or .cse13 .cse22)) .cse16) (or (and (or .cse18 .cse19 .cse24) (or .cse20 .cse22)) .cse17)))) (and (or (and .cse0 (or .cse1 .cse2)) (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|))))))) .cse4)))))) (or (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|))))))) .cse4)))) (let ((.cse5 (and (or .cse7 .cse8) .cse9))) (and (or .cse5 .cse6) (or .cse1 .cse5)))) (or (and (or (and (or .cse10 .cse11) (or .cse7 (let ((.cse23 (or .cse25 .cse24))) (let ((.cse14 (and .cse23 (or .cse21 .cse24))) (.cse12 (and (or .cse21 .cse22) .cse23))) (and (or (and (or .cse12 .cse13) (or .cse14 .cse15)) .cse16) (or .cse17 (and (or .cse18 .cse14 .cse19) (or .cse12 .cse20)))))))) .cse1) .cse0) (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|)))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 .cse26))) .cse4)))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse26 .cse27))))))))))) (or (forall ((|ULTIMATE.start_main_~input_6~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~input_7~0#1| (_ BitVec 8))) (let ((.cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_6~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~input_7~0#1|)))))) (or (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse3 .cse28))) .cse4))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 .cse27)))))))))) (and (or .cse8 .cse6) (or .cse10 .cse1)))))))))) is different from false [2024-11-13 15:04:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:04:16,802 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:04:16,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306090910] [2024-11-13 15:04:16,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306090910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:04:16,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 15:04:16,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-13 15:04:16,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305670301] [2024-11-13 15:04:16,803 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 15:04:16,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:04:16,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:04:16,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:04:16,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=84, Unknown=1, NotChecked=18, Total=132 [2024-11-13 15:04:16,806 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 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 15:04:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:04:18,497 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2024-11-13 15:04:18,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:04:18,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 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 15:04:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:04:18,499 INFO L225 Difference]: With dead ends: 14 [2024-11-13 15:04:18,499 INFO L226 Difference]: Without dead ends: 12 [2024-11-13 15:04:18,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=43, Invalid=116, Unknown=1, NotChecked=22, Total=182 [2024-11-13 15:04:18,501 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:04:18,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 7 Unchecked, 0.7s Time] [2024-11-13 15:04:18,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-11-13 15:04:18,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-11-13 15:04:18,507 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 15:04:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 15:04:18,508 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-13 15:04:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:04:18,509 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 15:04:18,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 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 15:04:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 15:04:18,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 15:04:18,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:04:18,510 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-13 15:04:18,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:04:18,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:04:18,714 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:04:18,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:04:18,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-13 15:04:18,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:04:18,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1593740947] [2024-11-13 15:04:18,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:04:18,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:04:18,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:04:18,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:04:18,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18d5dfae-7cab-483c-b28f-7af51facbf77/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process