./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.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_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/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_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/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_46d6e57b-9510-41f2-b4b1-e135a7099a99/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 8338394bbd81b76c0af2e2b3c250f2417497d2ccb212191358f27d2f0c0279c8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:13:58,448 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:13:58,548 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-13 13:13:58,557 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:13:58,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:13:58,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:13:58,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:13:58,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:13:58,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:13:58,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:13:58,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:13:58,599 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:13:58,599 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:13:58,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:13:58,599 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:13:58,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:13:58,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:13:58,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:13:58,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:13:58,601 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:13:58,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:13:58,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:13:58,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:13:58,603 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:13:58,603 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/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 -> 8338394bbd81b76c0af2e2b3c250f2417497d2ccb212191358f27d2f0c0279c8 [2024-11-13 13:13:58,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:13:58,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:13:58,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:13:58,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:13:58,942 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:13:58,943 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c Unable to find full path for "g++" [2024-11-13 13:14:00,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:14:01,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:14:01,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2024-11-13 13:14:01,176 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data/2780e34bc/5937eb5a612a4028b1ec64e412a5878f/FLAG979f80bfb [2024-11-13 13:14:01,212 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data/2780e34bc/5937eb5a612a4028b1ec64e412a5878f [2024-11-13 13:14:01,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:14:01,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:14:01,220 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:14:01,220 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:14:01,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:14:01,226 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3bbabe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01, skipping insertion in model container [2024-11-13 13:14:01,228 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:14:01,427 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1266,1279] [2024-11-13 13:14:01,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:14:01,540 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:14:01,552 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1266,1279] [2024-11-13 13:14:01,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:14:01,650 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:14:01,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01 WrapperNode [2024-11-13 13:14:01,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:14:01,653 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:14:01,653 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:14:01,653 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:14:01,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,753 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 401 [2024-11-13 13:14:01,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:14:01,754 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:14:01,754 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:14:01,754 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:14:01,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,785 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,821 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:14:01,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,853 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,866 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:14:01,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:14:01,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:14:01,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:14:01,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (1/1) ... [2024-11-13 13:14:01,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:14:01,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:01,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:14:01,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:14:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:14:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:14:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:14:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:14:02,080 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:14:02,083 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:14:02,850 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-13 13:14:02,850 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:14:02,860 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:14:02,861 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:14:02,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:02 BoogieIcfgContainer [2024-11-13 13:14:02,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:14:02,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:14:02,864 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:14:02,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:14:02,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:14:01" (1/3) ... [2024-11-13 13:14:02,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c87557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:14:02, skipping insertion in model container [2024-11-13 13:14:02,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:01" (2/3) ... [2024-11-13 13:14:02,871 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c87557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:14:02, skipping insertion in model container [2024-11-13 13:14:02,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:02" (3/3) ... [2024-11-13 13:14:02,873 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2024-11-13 13:14:02,891 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:14:02,893 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c that has 1 procedures, 78 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:14:02,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:14:02,984 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;@18c66d48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:14:02,984 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:14:02,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 76 states have (on average 1.486842105263158) internal successors, (113), 77 states have internal predecessors, (113), 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 13:14:02,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 13:14:02,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:02,995 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] [2024-11-13 13:14:02,995 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:03,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:03,001 INFO L85 PathProgramCache]: Analyzing trace with hash 475139788, now seen corresponding path program 1 times [2024-11-13 13:14:03,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:03,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002711867] [2024-11-13 13:14:03,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:03,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:03,757 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 13:14:03,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:03,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002711867] [2024-11-13 13:14:03,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002711867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:03,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:03,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:03,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117272640] [2024-11-13 13:14:03,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:03,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:03,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:03,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:03,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:03,790 INFO L87 Difference]: Start difference. First operand has 78 states, 76 states have (on average 1.486842105263158) internal successors, (113), 77 states have internal predecessors, (113), 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 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 13:14:03,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:03,869 INFO L93 Difference]: Finished difference Result 125 states and 183 transitions. [2024-11-13 13:14:03,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:03,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-13 13:14:03,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:03,879 INFO L225 Difference]: With dead ends: 125 [2024-11-13 13:14:03,879 INFO L226 Difference]: Without dead ends: 77 [2024-11-13 13:14:03,882 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 13:14:03,886 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 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 13:14:03,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-13 13:14:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-13 13:14:03,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 76 states have internal predecessors, (111), 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 13:14:03,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 111 transitions. [2024-11-13 13:14:03,927 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 111 transitions. Word has length 29 [2024-11-13 13:14:03,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:03,929 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 111 transitions. [2024-11-13 13:14:03,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 13:14:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 111 transitions. [2024-11-13 13:14:03,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-13 13:14:03,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:03,931 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] [2024-11-13 13:14:03,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:14:03,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:03,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:03,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1846126849, now seen corresponding path program 1 times [2024-11-13 13:14:03,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:03,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112809114] [2024-11-13 13:14:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:04,199 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 13:14:04,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:04,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112809114] [2024-11-13 13:14:04,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112809114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:04,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:04,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:04,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557849798] [2024-11-13 13:14:04,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:04,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:04,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:04,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:04,205 INFO L87 Difference]: Start difference. First operand 77 states and 111 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 13:14:04,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:04,261 INFO L93 Difference]: Finished difference Result 126 states and 181 transitions. [2024-11-13 13:14:04,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:04,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2024-11-13 13:14:04,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:04,263 INFO L225 Difference]: With dead ends: 126 [2024-11-13 13:14:04,263 INFO L226 Difference]: Without dead ends: 79 [2024-11-13 13:14:04,263 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 13:14:04,264 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 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 13:14:04,264 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:04,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-11-13 13:14:04,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-11-13 13:14:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.4487179487179487) internal successors, (113), 78 states have internal predecessors, (113), 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 13:14:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 113 transitions. [2024-11-13 13:14:04,277 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 113 transitions. Word has length 30 [2024-11-13 13:14:04,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:04,278 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 113 transitions. [2024-11-13 13:14:04,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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 13:14:04,278 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 113 transitions. [2024-11-13 13:14:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 13:14:04,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:04,280 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] [2024-11-13 13:14:04,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:14:04,282 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:04,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:04,282 INFO L85 PathProgramCache]: Analyzing trace with hash 297391685, now seen corresponding path program 1 times [2024-11-13 13:14:04,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:04,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655240131] [2024-11-13 13:14:04,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:04,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:04,836 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 13:14:04,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:04,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655240131] [2024-11-13 13:14:04,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655240131] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:04,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:04,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:14:04,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325684016] [2024-11-13 13:14:04,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:04,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:14:04,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:04,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:14:04,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:14:04,841 INFO L87 Difference]: Start difference. First operand 79 states and 113 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 13:14:05,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:05,012 INFO L93 Difference]: Finished difference Result 132 states and 188 transitions. [2024-11-13 13:14:05,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:14:05,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 31 [2024-11-13 13:14:05,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:05,014 INFO L225 Difference]: With dead ends: 132 [2024-11-13 13:14:05,015 INFO L226 Difference]: Without dead ends: 83 [2024-11-13 13:14:05,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:14:05,016 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 95 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:05,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 467 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-13 13:14:05,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2024-11-13 13:14:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 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 13:14:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2024-11-13 13:14:05,032 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 31 [2024-11-13 13:14:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:05,032 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2024-11-13 13:14:05,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 13:14:05,033 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2024-11-13 13:14:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 13:14:05,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:05,034 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] [2024-11-13 13:14:05,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:14:05,035 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:05,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:05,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1538094600, now seen corresponding path program 1 times [2024-11-13 13:14:05,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:05,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068593667] [2024-11-13 13:14:05,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:05,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:05,588 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 13:14:05,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:05,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068593667] [2024-11-13 13:14:05,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068593667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:05,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:05,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:14:05,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349144050] [2024-11-13 13:14:05,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:05,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:14:05,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:05,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:14:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:14:05,591 INFO L87 Difference]: Start difference. First operand 82 states and 116 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 13:14:05,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:05,725 INFO L93 Difference]: Finished difference Result 138 states and 194 transitions. [2024-11-13 13:14:05,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:14:05,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 32 [2024-11-13 13:14:05,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:05,727 INFO L225 Difference]: With dead ends: 138 [2024-11-13 13:14:05,727 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 13:14:05,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:14:05,728 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 91 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:05,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 476 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:05,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 13:14:05,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2024-11-13 13:14:05,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 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 13:14:05,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 116 transitions. [2024-11-13 13:14:05,734 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 116 transitions. Word has length 32 [2024-11-13 13:14:05,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:05,735 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 116 transitions. [2024-11-13 13:14:05,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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 13:14:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2024-11-13 13:14:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 13:14:05,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:05,736 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] [2024-11-13 13:14:05,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:14:05,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:05,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:05,737 INFO L85 PathProgramCache]: Analyzing trace with hash -2101214396, now seen corresponding path program 1 times [2024-11-13 13:14:05,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:05,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102274367] [2024-11-13 13:14:05,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:05,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:05,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:14:05,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:14:05,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:14:05,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:14:05,895 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:14:05,896 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:14:05,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:14:05,902 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-13 13:14:05,949 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:14:05,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:14:05 BoogieIcfgContainer [2024-11-13 13:14:05,954 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:14:05,955 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:14:05,955 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:14:05,956 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:14:05,957 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:02" (3/4) ... [2024-11-13 13:14:05,959 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:14:05,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:14:05,961 INFO L158 Benchmark]: Toolchain (without parser) took 4742.93ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 119.1MB in the beginning and 277.3MB in the end (delta: -158.3MB). Peak memory consumption was 126.9MB. Max. memory is 16.1GB. [2024-11-13 13:14:05,961 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:14:05,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.37ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 103.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:14:05,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.86ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 95.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:14:05,963 INFO L158 Benchmark]: Boogie Preprocessor took 120.87ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 91.2MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:14:05,963 INFO L158 Benchmark]: RCFGBuilder took 985.86ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 50.8MB in the end (delta: 40.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 13:14:05,963 INFO L158 Benchmark]: TraceAbstraction took 3089.71ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 50.1MB in the beginning and 277.4MB in the end (delta: -227.3MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-11-13 13:14:05,964 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 427.8MB. Free memory was 277.4MB in the beginning and 277.3MB in the end (delta: 17.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:14:05,965 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.37ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 103.2MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.86ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 95.9MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 120.87ms. Allocated memory is still 142.6MB. Free memory was 95.9MB in the beginning and 91.2MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 985.86ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 50.8MB in the end (delta: 40.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3089.71ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 50.1MB in the beginning and 277.4MB in the end (delta: -227.3MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 427.8MB. Free memory was 277.4MB in the beginning and 277.3MB in the end (delta: 17.6kB). 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 139. 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 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L33] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L35] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L36] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L38] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L39] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L41] const SORT_1 var_7 = 0; [L42] const SORT_10 var_12 = 0; [L43] const SORT_1 var_21 = 1; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_1 input_6; [L49] SORT_1 input_29; [L50] SORT_31 input_32; [L51] SORT_1 input_34; [L52] SORT_31 input_36; [L53] SORT_1 input_38; [L54] SORT_1 input_40; [L55] SORT_1 input_44; [L56] SORT_1 input_46; [L57] SORT_1 input_48; [L58] SORT_1 input_50; [L59] SORT_3 input_52; [L60] SORT_1 input_55; [L61] SORT_1 input_59; [L62] SORT_1 input_63; [L63] SORT_1 input_65; [L64] SORT_67 input_68; [L65] SORT_1 input_70; [L66] SORT_1 input_72; [L67] SORT_1 input_82; [L68] SORT_1 input_88; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L70] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L71] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L71] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L72] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L72] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L73] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L73] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L74] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L75] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=1, var_12=0, var_21=1, var_7=0] [L76] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 init_9_arg_1 = var_7; [L79] state_8 = init_9_arg_1 [L80] SORT_1 init_15_arg_1 = var_7; [L81] state_14 = init_15_arg_1 [L82] SORT_1 init_26_arg_1 = var_7; [L83] state_25 = init_26_arg_1 [L84] SORT_1 init_28_arg_1 = var_7; [L85] state_27 = init_28_arg_1 [L86] SORT_1 init_43_arg_1 = var_7; [L87] state_42 = init_43_arg_1 [L88] SORT_1 init_58_arg_1 = var_7; [L89] state_57 = init_58_arg_1 [L90] SORT_1 init_62_arg_1 = var_7; [L91] state_61 = init_62_arg_1 VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L94] input_2 = __VERIFIER_nondet_uchar() [L95] input_4 = __VERIFIER_nondet_uchar() [L96] input_5 = __VERIFIER_nondet_uchar() [L97] input_6 = __VERIFIER_nondet_uchar() [L98] input_29 = __VERIFIER_nondet_uchar() [L99] input_32 = __VERIFIER_nondet_uchar() [L100] input_34 = __VERIFIER_nondet_uchar() [L101] input_36 = __VERIFIER_nondet_uchar() [L102] input_38 = __VERIFIER_nondet_uchar() [L103] input_40 = __VERIFIER_nondet_uchar() [L104] input_44 = __VERIFIER_nondet_uchar() [L105] input_46 = __VERIFIER_nondet_uchar() [L106] input_48 = __VERIFIER_nondet_uchar() [L107] input_50 = __VERIFIER_nondet_uchar() [L108] input_52 = __VERIFIER_nondet_uchar() [L109] input_55 = __VERIFIER_nondet_uchar() [L110] input_59 = __VERIFIER_nondet_uchar() [L111] input_63 = __VERIFIER_nondet_uchar() [L112] input_65 = __VERIFIER_nondet_uchar() [L113] input_68 = __VERIFIER_nondet_ushort() [L114] input_70 = __VERIFIER_nondet_uchar() [L115] input_72 = __VERIFIER_nondet_uchar() [L116] input_82 = __VERIFIER_nondet_uchar() [L117] input_88 = __VERIFIER_nondet_uchar() [L120] SORT_1 var_11_arg_0 = state_8; VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_11_arg_0=0, var_12=0, var_21=1, var_7=0] [L121] EXPR var_11_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L121] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L122] SORT_10 var_11 = var_11_arg_0; [L123] SORT_10 var_13_arg_0 = var_11; [L124] SORT_10 var_13_arg_1 = var_12; [L125] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L126] SORT_1 var_16_arg_0 = state_14; VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_13=1, var_16_arg_0=0, var_21=1, var_7=0] [L127] EXPR var_16_arg_0 & mask_SORT_1 VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_13=1, var_21=1, var_7=0] [L127] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L128] SORT_10 var_16 = var_16_arg_0; [L129] SORT_10 var_17_arg_0 = var_16; [L130] SORT_10 var_17_arg_1 = var_12; [L131] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L132] SORT_1 var_18_arg_0 = var_13; [L133] SORT_1 var_18_arg_1 = var_17; VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_7=0] [L134] EXPR var_18_arg_0 | var_18_arg_1 VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L134] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L135] SORT_1 var_22_arg_0 = var_18; [L136] SORT_1 var_22 = ~var_22_arg_0; [L137] SORT_1 var_23_arg_0 = var_21; [L138] SORT_1 var_23_arg_1 = var_22; VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_23_arg_0=1, var_23_arg_1=-2, var_7=0] [L139] EXPR var_23_arg_0 & var_23_arg_1 VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L139] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L140] EXPR var_23 & mask_SORT_1 VAL [mask_SORT_1=1, state_14=0, state_25=0, state_27=0, state_42=0, state_57=0, state_61=0, state_8=0, var_12=0, var_21=1, var_7=0] [L140] var_23 = var_23 & mask_SORT_1 [L141] SORT_1 bad_24_arg_0 = var_23; [L142] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 186 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 186 mSDsluCounter, 1569 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1160 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 175 IncrementalHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 409 mSDtfsCounter, 175 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 303 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 13:14:05,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/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_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/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_46d6e57b-9510-41f2-b4b1-e135a7099a99/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 8338394bbd81b76c0af2e2b3c250f2417497d2ccb212191358f27d2f0c0279c8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:14:08,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:14:08,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-13 13:14:08,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:14:08,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:14:08,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:14:08,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:14:08,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:14:08,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:14:08,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:14:08,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:14:08,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:14:08,797 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:14:08,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:14:08,797 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:14:08,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:14:08,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:14:08,799 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:14:08,799 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:14:08,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:14:08,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:14:08,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:14:08,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:14:08,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:14:08,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:14:08,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:14:08,807 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/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 -> 8338394bbd81b76c0af2e2b3c250f2417497d2ccb212191358f27d2f0c0279c8 [2024-11-13 13:14:09,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:14:09,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:14:09,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:14:09,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:14:09,126 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:14:09,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c Unable to find full path for "g++" [2024-11-13 13:14:11,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:14:11,394 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:14:11,398 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2024-11-13 13:14:11,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data/76f2665c4/eb72d21391d3401ba53e8f11e304f37b/FLAG4a2e1b971 [2024-11-13 13:14:11,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/data/76f2665c4/eb72d21391d3401ba53e8f11e304f37b [2024-11-13 13:14:11,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:14:11,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:14:11,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:14:11,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:14:11,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:14:11,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449ef011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11, skipping insertion in model container [2024-11-13 13:14:11,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:14:11,648 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1266,1279] [2024-11-13 13:14:11,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:14:11,772 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:14:11,784 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_46d6e57b-9510-41f2-b4b1-e135a7099a99/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c[1266,1279] [2024-11-13 13:14:11,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:14:11,865 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:14:11,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11 WrapperNode [2024-11-13 13:14:11,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:14:11,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:14:11,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:14:11,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:14:11,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,910 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 265 [2024-11-13 13:14:11,910 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:14:11,911 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:14:11,911 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:14:11,911 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:14:11,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,926 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,939 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:14:11,939 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,939 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:14:11,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:14:11,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:14:11,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:14:11,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (1/1) ... [2024-11-13 13:14:11,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:14:11,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:12,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:14:12,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:14:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:14:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:14:12,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:14:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:14:12,190 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:14:12,192 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:14:12,481 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-13 13:14:12,481 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:14:12,495 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:14:12,495 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:14:12,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:12 BoogieIcfgContainer [2024-11-13 13:14:12,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:14:12,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:14:12,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:14:12,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:14:12,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:14:11" (1/3) ... [2024-11-13 13:14:12,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a228e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:14:12, skipping insertion in model container [2024-11-13 13:14:12,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:14:11" (2/3) ... [2024-11-13 13:14:12,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a228e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:14:12, skipping insertion in model container [2024-11-13 13:14:12,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:12" (3/3) ... [2024-11-13 13:14:12,505 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c [2024-11-13 13:14:12,521 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:14:12,522 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p07.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:14:12,570 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:14:12,585 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;@54385aa3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:14:12,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:14:12,591 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 13:14:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:14:12,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:12,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:14:12,602 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:12,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-13 13:14:12,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:14:12,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41608566] [2024-11-13 13:14:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:12,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:12,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:12,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:12,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:14:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:12,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-13 13:14:12,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:13,170 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 13:14:13,170 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:14:13,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:14:13,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41608566] [2024-11-13 13:14:13,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41608566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:13,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:13,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:13,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112766758] [2024-11-13 13:14:13,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:13,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:13,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:14:13,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:13,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:13,203 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 13:14:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:13,268 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-13 13:14:13,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:13,270 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 13:14:13,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:13,277 INFO L225 Difference]: With dead ends: 18 [2024-11-13 13:14:13,278 INFO L226 Difference]: Without dead ends: 10 [2024-11-13 13:14:13,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:14:13,284 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:13,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:14:13,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-13 13:14:13,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-13 13:14:13,309 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 13:14:13,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-13 13:14:13,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-13 13:14:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:13,315 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-13 13:14:13,316 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 13:14:13,316 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-13 13:14:13,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 13:14:13,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:13,317 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:13,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:14:13,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:13,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:13,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:13,518 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-13 13:14:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:14:13,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464818475] [2024-11-13 13:14:13,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:13,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:13,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:13,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:13,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:14:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:13,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 13:14:13,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:14,025 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 13:14:14,025 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:14,916 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 13:14:14,917 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:14:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464818475] [2024-11-13 13:14:14,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464818475] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:14,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:14:14,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 13:14:14,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859102700] [2024-11-13 13:14:14,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:14,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:14:14,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:14:14,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:14:14,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:14:14,920 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:15,032 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-13 13:14:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:14:15,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 13:14:15,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:15,035 INFO L225 Difference]: With dead ends: 15 [2024-11-13 13:14:15,035 INFO L226 Difference]: Without dead ends: 13 [2024-11-13 13:14:15,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:14:15,036 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:15,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-13 13:14:15,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-13 13:14:15,040 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 13:14:15,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-13 13:14:15,041 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-13 13:14:15,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:15,041 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-13 13:14:15,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:15,041 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-13 13:14:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 13:14:15,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:15,042 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-13 13:14:15,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:14:15,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:15,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:15,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-13 13:14:15,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:14:15,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45952704] [2024-11-13 13:14:15,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:14:15,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:15,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:15,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:15,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:14:15,427 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 13:14:15,427 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:15,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 13:14:15,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:15,756 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:15,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:19,480 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:14:19,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45952704] [2024-11-13 13:14:19,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45952704] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:19,480 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:14:19,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-13 13:14:19,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506329745] [2024-11-13 13:14:19,482 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:19,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:14:19,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:14:19,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:14:19,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:14:19,485 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:19,635 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-13 13:14:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:14:19,636 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-13 13:14:19,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:19,637 INFO L225 Difference]: With dead ends: 18 [2024-11-13 13:14:19,637 INFO L226 Difference]: Without dead ends: 16 [2024-11-13 13:14:19,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:14:19,639 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:19,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-13 13:14:19,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-13 13:14:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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 13:14:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-13 13:14:19,647 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2024-11-13 13:14:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:19,648 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-13 13:14:19,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:19,649 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-13 13:14:19,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 13:14:19,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:19,649 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-13 13:14:19,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:14:19,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:19,854 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:19,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1333570723, now seen corresponding path program 3 times [2024-11-13 13:14:19,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:14:19,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2109399363] [2024-11-13 13:14:19,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 13:14:19,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:19,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:19,857 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:19,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:14:20,042 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-13 13:14:20,043 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:20,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 13:14:20,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:20,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:14:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:14:42,119 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:14:42,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109399363] [2024-11-13 13:14:42,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109399363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:14:42,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:14:42,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2024-11-13 13:14:42,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578526865] [2024-11-13 13:14:42,120 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:14:42,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:14:42,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:14:42,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:14:42,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:14:42,121 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 13:14:42,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:42,280 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2024-11-13 13:14:42,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:14:42,281 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 14 [2024-11-13 13:14:42,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:42,281 INFO L225 Difference]: With dead ends: 21 [2024-11-13 13:14:42,281 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 13:14:42,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:14:42,282 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:42,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 30 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:14:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 13:14:42,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2024-11-13 13:14:42,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2024-11-13 13:14:42,286 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 14 [2024-11-13 13:14:42,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:42,287 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2024-11-13 13:14:42,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 12 states have internal predecessors, (26), 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 13:14:42,287 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2024-11-13 13:14:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 13:14:42,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:42,288 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2024-11-13 13:14:42,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:14:42,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:42,491 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:42,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:42,492 INFO L85 PathProgramCache]: Analyzing trace with hash -37306491, now seen corresponding path program 4 times [2024-11-13 13:14:42,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:14:42,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [652564785] [2024-11-13 13:14:42,492 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-13 13:14:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:14:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:14:42,494 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:14:42,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:14:42,683 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-13 13:14:42,683 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:14:42,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 13:14:42,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:14:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 13:14:43,052 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:18:30,134 WARN L286 SmtUtils]: Spent 24.05s on a formula simplification that was a NOOP. DAG size: 1353 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:20:11,101 WARN L286 SmtUtils]: Spent 25.19s on a formula simplification that was a NOOP. DAG size: 1356 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:21:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:22,821 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:21:22,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652564785] [2024-11-13 13:21:22,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652564785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:22,821 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:21:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-13 13:21:22,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357698359] [2024-11-13 13:21:22,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:22,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:21:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:21:22,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:21:22,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-13 13:21:22,822 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 13:21:22,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:22,870 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2024-11-13 13:21:22,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:22,871 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 17 [2024-11-13 13:21:22,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:22,871 INFO L225 Difference]: With dead ends: 18 [2024-11-13 13:21:22,871 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 13:21:22,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 58.7s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:21:22,872 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:22,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:21:22,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 13:21:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 13:21:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 13:21:22,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-13 13:21:22,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:22,874 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:21:22,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 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 13:21:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:21:22,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 13:21:22,877 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:21:22,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:21:23,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:23,080 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1] [2024-11-13 13:21:23,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 13:21:23,159 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:21:23,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:21:23 BoogieIcfgContainer [2024-11-13 13:21:23,169 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:21:23,170 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:21:23,170 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:21:23,170 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:21:23,170 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:14:12" (3/4) ... [2024-11-13 13:21:23,173 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:21:23,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-13 13:21:23,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 13:21:23,182 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:21:23,183 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:21:23,217 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:61) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromStep(CACSLBacktranslationValueProvider.java:1) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GeneratedWitnessEdge.getSourceCode(GeneratedWitnessEdge.java:156) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.lambda$2(GraphMLCorrectnessWitnessGenerator.java:91) at edu.uci.ics.jung.io.GraphMLWriter.writeEdgeData(GraphMLWriter.java:237) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.UltimateGraphMLWriter.save(UltimateGraphMLWriter.java:106) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLCorrectnessWitnessGenerator.makeGraphMLString(GraphMLCorrectnessWitnessGenerator.java:111) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateProofWitness(WitnessPrinter.java:168) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:143) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 13:21:23,222 INFO L158 Benchmark]: Toolchain (without parser) took 431777.19ms. Allocated memory was 117.4MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 91.7MB in the beginning and 719.8MB in the end (delta: -628.1MB). Peak memory consumption was 273.1MB. Max. memory is 16.1GB. [2024-11-13 13:21:23,222 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:23,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 419.54ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 76.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:21:23,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.25ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:23,223 INFO L158 Benchmark]: Boogie Preprocessor took 44.87ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 71.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:23,223 INFO L158 Benchmark]: RCFGBuilder took 539.20ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 51.4MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 13:21:23,224 INFO L158 Benchmark]: TraceAbstraction took 430670.83ms. Allocated memory was 117.4MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 50.8MB in the beginning and 721.2MB in the end (delta: -670.4MB). Peak memory consumption was 231.1MB. Max. memory is 16.1GB. [2024-11-13 13:21:23,224 INFO L158 Benchmark]: Witness Printer took 51.35ms. Allocated memory is still 1.0GB. Free memory was 721.2MB in the beginning and 719.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:23,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 419.54ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 76.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.25ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.87ms. Allocated memory is still 117.4MB. Free memory was 74.2MB in the beginning and 71.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 539.20ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 51.4MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 430670.83ms. Allocated memory was 117.4MB in the beginning and 1.0GB in the end (delta: 906.0MB). Free memory was 50.8MB in the beginning and 721.2MB in the end (delta: -670.4MB). Peak memory consumption was 231.1MB. Max. memory is 16.1GB. * Witness Printer took 51.35ms. Allocated memory is still 1.0GB. Free memory was 721.2MB in the beginning and 719.8MB in the end (delta: 1.5MB). 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 430.5s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 66.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 427.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 96 ConstructedInterpolants, 34 QuantifiedInterpolants, 325016 SizeOfPredicates, 36 NumberOfNonLiveVariables, 600 ConjunctsInSsa, 149 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 2/100 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((((((((0 == var_7) && (0 == state_42)) && (0 == state_27)) && (0 == state_8)) && (0 == var_12)) && (1 == mask_SORT_1)) && (0 == state_61)) && (0 == state_57)) * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null de.uni_freiburg.informatik.ultimate.witnessprinter: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null: de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLBacktranslationValueProvider.getStringFromIASTNode(CACSLBacktranslationValueProvider.java:80) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-11-13 13:21:23,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46d6e57b-9510-41f2-b4b1-e135a7099a99/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: NullPointerException: Cannot invoke "org.eclipse.cdt.core.dom.ast.IASTNode.getRawSignature()" because "" is null