./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl --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 b0e8e527ed1410fa61bffd0316426c57214997c6d0c7e1e87881279f709630e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:09,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:09,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-12 02:22:09,313 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:09,314 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:09,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:09,343 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:09,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:09,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:22:09,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:22:09,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:09,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:09,347 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:09,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:09,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:22:09,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:22:09,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:09,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:22:09,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:22:09,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:22:09,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:09,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:09,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:09,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:09,355 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:22:09,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:09,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:09,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:22:09,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:22:09,357 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:22:09,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:22:09,358 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:22:09,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:22:09,359 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:22:09,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:22:09,378 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:22:09,379 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0e8e527ed1410fa61bffd0316426c57214997c6d0c7e1e87881279f709630e1 [2023-11-12 02:22:09,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:09,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:09,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:09,733 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:09,734 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:09,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2023-11-12 02:22:12,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:22:13,236 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:22:13,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2023-11-12 02:22:13,249 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data/b27cbab8e/0a8bd64979b64e7684cd0e81e55e4f42/FLAGc5cecac71 [2023-11-12 02:22:13,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data/b27cbab8e/0a8bd64979b64e7684cd0e81e55e4f42 [2023-11-12 02:22:13,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:22:13,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:22:13,282 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:13,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:22:13,289 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:22:13,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e105177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13, skipping insertion in model container [2023-11-12 02:22:13,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,339 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:22:13,522 WARN L240 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_0795c5ca-d3f0-4027-af47-3d7dc6d19202/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1266,1279] [2023-11-12 02:22:13,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:13,649 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:22:13,668 WARN L240 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_0795c5ca-d3f0-4027-af47-3d7dc6d19202/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1266,1279] [2023-11-12 02:22:13,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:13,758 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:22:13,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13 WrapperNode [2023-11-12 02:22:13,759 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:13,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:13,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:22:13,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:22:13,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,859 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 434 [2023-11-12 02:22:13,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:13,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:22:13,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:22:13,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:22:13,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,934 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:22:13,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:22:13,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:22:13,949 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:22:13,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (1/1) ... [2023-11-12 02:22:13,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:13,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:13,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:22:14,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:22:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:22:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:22:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:22:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:22:14,160 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:22:14,163 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:14,944 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:14,951 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:14,956 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:22:14,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:14 BoogieIcfgContainer [2023-11-12 02:22:14,965 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:14,968 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:22:14,968 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:22:14,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:22:14,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:22:13" (1/3) ... [2023-11-12 02:22:14,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77abf0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:14, skipping insertion in model container [2023-11-12 02:22:14,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:13" (2/3) ... [2023-11-12 02:22:14,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77abf0c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:14, skipping insertion in model container [2023-11-12 02:22:14,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:14" (3/3) ... [2023-11-12 02:22:14,978 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2023-11-12 02:22:15,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:22:15,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:22:15,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:22:15,081 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d5be8c4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:22:15,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:22:15,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 60 states have (on average 1.6333333333333333) internal successors, (98), 61 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-12 02:22:15,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:15,098 INFO L195 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] [2023-11-12 02:22:15,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:15,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:15,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1131360491, now seen corresponding path program 1 times [2023-11-12 02:22:15,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:15,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761745872] [2023-11-12 02:22:15,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:15,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:15,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:15,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761745872] [2023-11-12 02:22:15,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761745872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:15,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:15,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:15,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323080985] [2023-11-12 02:22:15,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:15,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:15,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:15,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:15,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:15,887 INFO L87 Difference]: Start difference. First operand has 62 states, 60 states have (on average 1.6333333333333333) internal successors, (98), 61 states have internal predecessors, (98), 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) [2023-11-12 02:22:15,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:15,938 INFO L93 Difference]: Finished difference Result 99 states and 159 transitions. [2023-11-12 02:22:15,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:15,941 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 [2023-11-12 02:22:15,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:15,951 INFO L225 Difference]: With dead ends: 99 [2023-11-12 02:22:15,951 INFO L226 Difference]: Without dead ends: 60 [2023-11-12 02:22:15,954 INFO L412 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 [2023-11-12 02:22:15,958 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:15,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 264 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:15,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-12 02:22:15,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-12 02:22:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 59 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:16,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 94 transitions. [2023-11-12 02:22:16,005 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 94 transitions. Word has length 29 [2023-11-12 02:22:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:16,006 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 94 transitions. [2023-11-12 02:22:16,007 INFO L496 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) [2023-11-12 02:22:16,007 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 94 transitions. [2023-11-12 02:22:16,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:22:16,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:16,009 INFO L195 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] [2023-11-12 02:22:16,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:22:16,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:16,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:16,012 INFO L85 PathProgramCache]: Analyzing trace with hash 714161945, now seen corresponding path program 1 times [2023-11-12 02:22:16,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:16,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071036564] [2023-11-12 02:22:16,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:16,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:16,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:16,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071036564] [2023-11-12 02:22:16,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071036564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:16,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:16,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:16,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633256469] [2023-11-12 02:22:16,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:16,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:16,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:16,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:16,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:16,290 INFO L87 Difference]: Start difference. First operand 60 states and 94 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) [2023-11-12 02:22:16,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:16,355 INFO L93 Difference]: Finished difference Result 100 states and 155 transitions. [2023-11-12 02:22:16,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:16,357 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 [2023-11-12 02:22:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:16,360 INFO L225 Difference]: With dead ends: 100 [2023-11-12 02:22:16,360 INFO L226 Difference]: Without dead ends: 63 [2023-11-12 02:22:16,364 INFO L412 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 [2023-11-12 02:22:16,366 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 1 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:16,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 261 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:16,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-12 02:22:16,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 62. [2023-11-12 02:22:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 61 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:16,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 96 transitions. [2023-11-12 02:22:16,374 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 96 transitions. Word has length 30 [2023-11-12 02:22:16,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:16,393 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 96 transitions. [2023-11-12 02:22:16,393 INFO L496 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) [2023-11-12 02:22:16,393 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 96 transitions. [2023-11-12 02:22:16,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 02:22:16,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:16,395 INFO L195 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] [2023-11-12 02:22:16,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:22:16,395 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:16,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash 453751493, now seen corresponding path program 1 times [2023-11-12 02:22:16,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:16,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624386733] [2023-11-12 02:22:16,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:16,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:16,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:16,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:22:16,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624386733] [2023-11-12 02:22:16,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624386733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:16,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:16,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:22:16,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353339973] [2023-11-12 02:22:16,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:16,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:22:16,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:22:16,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:22:16,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:22:16,904 INFO L87 Difference]: Start difference. First operand 62 states and 96 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) [2023-11-12 02:22:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:17,102 INFO L93 Difference]: Finished difference Result 147 states and 225 transitions. [2023-11-12 02:22:17,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:22:17,102 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 [2023-11-12 02:22:17,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:17,104 INFO L225 Difference]: With dead ends: 147 [2023-11-12 02:22:17,104 INFO L226 Difference]: Without dead ends: 108 [2023-11-12 02:22:17,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:17,109 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 232 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:17,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 319 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:17,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-11-12 02:22:17,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 65. [2023-11-12 02:22:17,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.546875) internal successors, (99), 64 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 99 transitions. [2023-11-12 02:22:17,127 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 99 transitions. Word has length 31 [2023-11-12 02:22:17,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:17,128 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 99 transitions. [2023-11-12 02:22:17,128 INFO L496 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) [2023-11-12 02:22:17,128 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 99 transitions. [2023-11-12 02:22:17,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 02:22:17,129 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:17,129 INFO L195 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] [2023-11-12 02:22:17,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:22:17,130 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:17,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:17,131 INFO L85 PathProgramCache]: Analyzing trace with hash -2066208441, now seen corresponding path program 1 times [2023-11-12 02:22:17,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:22:17,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648919155] [2023-11-12 02:22:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:17,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:22:17,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:17,193 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:22:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:22:17,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:22:17,294 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:22:17,295 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:22:17,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:22:17,301 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:22:17,305 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:22:17,353 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-12 02:22:17,354 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-12 02:22:17,355 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-12 02:22:17,356 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-12 02:22:17,357 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:22:17,358 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-12 02:22:17,359 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-12 02:22:17,360 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-12 02:22:17,361 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-12 02:22:17,362 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-12 02:22:17,362 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-12 02:22:17,362 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-12 02:22:17,363 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-12 02:22:17,365 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-12 02:22:17,373 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-11-12 02:22:17,375 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-12 02:22:17,377 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated [2023-11-12 02:22:17,378 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated [2023-11-12 02:22:17,379 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated [2023-11-12 02:22:17,380 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 02:22:17,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:22:17 BoogieIcfgContainer [2023-11-12 02:22:17,394 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:22:17,394 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:22:17,394 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:22:17,395 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:22:17,395 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:14" (3/4) ... [2023-11-12 02:22:17,398 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:22:17,399 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:22:17,400 INFO L158 Benchmark]: Toolchain (without parser) took 4122.37ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 121.6MB in the beginning and 107.4MB in the end (delta: 14.2MB). Peak memory consumption was 77.4MB. Max. memory is 16.1GB. [2023-11-12 02:22:17,400 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 167.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:17,401 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.90ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 105.9MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:22:17,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.98ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 98.3MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:22:17,402 INFO L158 Benchmark]: Boogie Preprocessor took 82.56ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 95.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:22:17,403 INFO L158 Benchmark]: RCFGBuilder took 1016.84ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 95.1MB in the beginning and 188.4MB in the end (delta: -93.2MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2023-11-12 02:22:17,403 INFO L158 Benchmark]: TraceAbstraction took 2426.18ms. Allocated memory is still 230.7MB. Free memory was 188.4MB in the beginning and 108.5MB in the end (delta: 79.9MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2023-11-12 02:22:17,404 INFO L158 Benchmark]: Witness Printer took 5.08ms. Allocated memory is still 230.7MB. Free memory was 108.5MB in the beginning and 107.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:17,406 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 167.8MB. Free memory is still 138.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.90ms. Allocated memory is still 167.8MB. Free memory was 121.4MB in the beginning and 105.9MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.98ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 98.3MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.56ms. Allocated memory is still 167.8MB. Free memory was 98.3MB in the beginning and 95.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1016.84ms. Allocated memory was 167.8MB in the beginning and 230.7MB in the end (delta: 62.9MB). Free memory was 95.1MB in the beginning and 188.4MB in the end (delta: -93.2MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2426.18ms. Allocated memory is still 230.7MB. Free memory was 188.4MB in the beginning and 108.5MB in the end (delta: 79.9MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Witness Printer took 5.08ms. Allocated memory is still 230.7MB. Free memory was 108.5MB in the beginning and 107.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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_31 input_34; [L52] SORT_1 input_36; [L53] SORT_1 input_38; [L54] SORT_1 input_42; [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_74; [L67] SORT_1 input_81; [L68] SORT_1 input_87; [L70] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, 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_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_8=0, 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_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_8=0, 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_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_8=0, 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_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_8=0, var_12=0, var_21=1, var_7=0] [L74] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_8=0, 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_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_8=0, 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_41_arg_1 = var_7; [L87] state_40 = init_41_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 [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=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_42 = __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_74 = __VERIFIER_nondet_uchar() [L116] input_81 = __VERIFIER_nondet_uchar() [L117] input_87 = __VERIFIER_nondet_uchar() [L120] SORT_1 var_11_arg_0 = state_8; VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=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 [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=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] 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 [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16_arg_0=0, var_21=1, var_7=0] [L127] EXPR var_16_arg_0 & mask_SORT_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16_arg_0=0, 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 [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=0, var_16_arg_0=0, var_17=1, var_17_arg_0=0, var_17_arg_1=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 [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=0, var_16_arg_0=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18_arg_0=1, var_18_arg_1=1, 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 [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=0, var_16_arg_0=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_22=254, var_22_arg_0=1, var_23_arg_0=1, var_23_arg_1=254, var_7=0] [L139] EXPR var_23_arg_0 & var_23_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=0, var_16_arg_0=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_22=254, var_22_arg_0=1, var_23_arg_0=1, var_23_arg_1=254, var_7=0] [L139] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L140] EXPR var_23 & mask_SORT_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_9_arg_1=0, mask_SORT_10=4294967295, mask_SORT_1=1, mask_SORT_31=15, mask_SORT_3=255, mask_SORT_67=1023, msb_SORT_10=2147483648, msb_SORT_1=1, msb_SORT_31=8, msb_SORT_3=128, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_57=0, state_61=0, state_8=0, var_11=0, var_11_arg_0=0, var_12=0, var_13=1, var_13_arg_0=0, var_13_arg_1=0, var_16=0, var_16_arg_0=0, var_17=1, var_17_arg_0=0, var_17_arg_1=0, var_18=1, var_18_arg_0=1, var_18_arg_1=1, var_21=1, var_22=254, var_22_arg_0=1, var_23=1, var_23_arg_0=1, var_23_arg_1=254, 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) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 62 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 234 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 234 mSDsluCounter, 844 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 572 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 272 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=3, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 44 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2023-11-12 02:22:17,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl --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 b0e8e527ed1410fa61bffd0316426c57214997c6d0c7e1e87881279f709630e1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:22:20,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:22:20,383 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-12 02:22:20,392 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:22:20,393 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:22:20,427 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:22:20,427 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:22:20,428 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:22:20,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:22:20,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:22:20,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:22:20,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:22:20,437 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:22:20,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:22:20,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:22:20,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:22:20,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:22:20,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:22:20,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:22:20,442 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:22:20,443 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:22:20,443 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:22:20,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:22:20,444 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:22:20,445 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:22:20,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:22:20,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:22:20,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:20,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:22:20,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:22:20,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:22:20,449 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:22:20,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:22:20,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:22:20,450 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:22:20,450 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:22:20,450 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:22:20,451 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:22:20,451 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:22:20,452 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0e8e527ed1410fa61bffd0316426c57214997c6d0c7e1e87881279f709630e1 [2023-11-12 02:22:20,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:22:20,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:22:20,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:22:20,991 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:22:20,991 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:22:20,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2023-11-12 02:22:24,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:22:24,714 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:22:24,720 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2023-11-12 02:22:24,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data/298ffeaab/02f333dec39942819de4d9d7581fcdd6/FLAG9a56dac81 [2023-11-12 02:22:24,745 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/data/298ffeaab/02f333dec39942819de4d9d7581fcdd6 [2023-11-12 02:22:24,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:22:24,749 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:22:24,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:24,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:22:24,755 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:22:24,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:24" (1/1) ... [2023-11-12 02:22:24,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15326c3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:24, skipping insertion in model container [2023-11-12 02:22:24,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:22:24" (1/1) ... [2023-11-12 02:22:24,787 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:22:24,939 WARN L240 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_0795c5ca-d3f0-4027-af47-3d7dc6d19202/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1266,1279] [2023-11-12 02:22:25,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:25,016 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:22:25,028 WARN L240 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_0795c5ca-d3f0-4027-af47-3d7dc6d19202/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c[1266,1279] [2023-11-12 02:22:25,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:22:25,081 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:22:25,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25 WrapperNode [2023-11-12 02:22:25,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:22:25,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:25,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:22:25,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:22:25,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,122 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,176 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 264 [2023-11-12 02:22:25,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:22:25,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:22:25,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:22:25,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:22:25,191 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,217 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,249 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:22:25,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:22:25,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:22:25,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:22:25,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (1/1) ... [2023-11-12 02:22:25,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:22:25,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:22:25,306 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:22:25,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:22:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:22:25,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:22:25,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:22:25,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:22:25,550 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:22:25,552 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:22:25,838 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:22:25,844 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:22:25,844 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:22:25,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:25 BoogieIcfgContainer [2023-11-12 02:22:25,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:22:25,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:22:25,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:22:25,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:22:25,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:22:24" (1/3) ... [2023-11-12 02:22:25,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e050b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:25, skipping insertion in model container [2023-11-12 02:22:25,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:22:25" (2/3) ... [2023-11-12 02:22:25,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e050b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:22:25, skipping insertion in model container [2023-11-12 02:22:25,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:25" (3/3) ... [2023-11-12 02:22:25,857 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p09.c [2023-11-12 02:22:25,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:22:25,878 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:22:25,936 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:22:25,942 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e92fad5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:22:25,942 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:22:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:22:25,954 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:25,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:22:25,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:25,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-12 02:22:25,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:25,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [711209660] [2023-11-12 02:22:25,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:25,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:25,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:25,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:22:25,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:22:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:26,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-12 02:22:26,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:26,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:26,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:26,508 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:26,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [711209660] [2023-11-12 02:22:26,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [711209660] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:26,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:26,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:26,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92075002] [2023-11-12 02:22:26,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:26,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:26,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:26,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:26,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:26,566 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-12 02:22:26,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:26,629 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-12 02:22:26,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:26,632 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 [2023-11-12 02:22:26,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:26,639 INFO L225 Difference]: With dead ends: 19 [2023-11-12 02:22:26,639 INFO L226 Difference]: Without dead ends: 10 [2023-11-12 02:22:26,642 INFO L412 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 [2023-11-12 02:22:26,646 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 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 [2023-11-12 02:22:26,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:26,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-12 02:22:26,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-12 02:22:26,678 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) [2023-11-12 02:22:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-12 02:22:26,680 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-12 02:22:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:26,680 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-12 02:22:26,681 INFO L496 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) [2023-11-12 02:22:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-12 02:22:26,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:22:26,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:26,682 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:26,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 02:22:26,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:26,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:26,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:26,896 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-12 02:22:26,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:26,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556674042] [2023-11-12 02:22:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:26,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:26,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:26,901 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:22:26,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:22:27,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:27,121 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-12 02:22:27,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:27,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:27,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:28,535 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:28,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1556674042] [2023-11-12 02:22:28,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1556674042] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:28,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:22:28,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-12 02:22:28,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037338459] [2023-11-12 02:22:28,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:28,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:22:28,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:28,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:22:28,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:22:28,540 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2023-11-12 02:22:28,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:28,671 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-12 02:22:28,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:22:28,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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 [2023-11-12 02:22:28,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:28,672 INFO L225 Difference]: With dead ends: 15 [2023-11-12 02:22:28,673 INFO L226 Difference]: Without dead ends: 13 [2023-11-12 02:22:28,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:22:28,675 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:28,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 17 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:28,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-12 02:22:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-11-12 02:22:28,679 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) [2023-11-12 02:22:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-12 02:22:28,680 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2023-11-12 02:22:28,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:28,681 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-12 02:22:28,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2023-11-12 02:22:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-12 02:22:28,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:22:28,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:28,682 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 02:22:28,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:28,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:28,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:28,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:28,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2023-11-12 02:22:28,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:28,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [685978255] [2023-11-12 02:22:28,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:22:28,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:28,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:28,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:22:28,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:22:29,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:22:29,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:22:29,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-12 02:22:29,132 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:29,475 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:29,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:33,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:33,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [685978255] [2023-11-12 02:22:33,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [685978255] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:33,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:22:33,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-12 02:22:33,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273965413] [2023-11-12 02:22:33,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:33,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:22:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:33,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:22:33,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:33,614 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) [2023-11-12 02:22:33,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:33,750 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-11-12 02:22:33,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:22:33,752 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 [2023-11-12 02:22:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:33,752 INFO L225 Difference]: With dead ends: 18 [2023-11-12 02:22:33,753 INFO L226 Difference]: Without dead ends: 16 [2023-11-12 02:22:33,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-12 02:22:33,754 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:33,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:33,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-12 02:22:33,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-12 02:22:33,759 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) [2023-11-12 02:22:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-12 02:22:33,759 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2023-11-12 02:22:33,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:33,760 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-12 02:22:33,760 INFO L496 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) [2023-11-12 02:22:33,761 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-12 02:22:33,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:22:33,761 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:33,762 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-12 02:22:33,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:33,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:33,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:22:33,977 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2023-11-12 02:22:33,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:33,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370102145] [2023-11-12 02:22:33,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:22:33,979 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:33,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:33,981 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:22:33,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 02:22:34,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-12 02:22:34,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:22:34,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-12 02:22:34,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:34,728 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:22:34,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:22:39,433 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-12 02:22:39,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:39,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370102145] [2023-11-12 02:22:39,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370102145] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:22:39,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:22:39,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-12 02:22:39,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661935518] [2023-11-12 02:22:39,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:22:39,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 02:22:39,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:39,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 02:22:39,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:22:39,443 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:39,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:39,516 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-11-12 02:22:39,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:39,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 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 [2023-11-12 02:22:39,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:39,518 INFO L225 Difference]: With dead ends: 15 [2023-11-12 02:22:39,518 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:22:39,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:22:39,520 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:39,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:22:39,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:22:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:39,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:22:39,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-12 02:22:39,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:39,523 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:22:39,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:22:39,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:22:39,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:22:39,530 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:22:39,548 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:39,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:22:39,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:22:39,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:22:39,829 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-12 02:22:39,829 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-12 02:22:39,830 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-12 02:22:39,830 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:22:39,830 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 23 223) no Hoare annotation was computed. [2023-11-12 02:22:39,830 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:22:39,830 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:22:39,831 INFO L895 garLoopResultBuilder]: At program point L92-2(lines 92 221) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) (exists ((|ULTIMATE.start_main_~var_91_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_91_arg_2~0#1|))))) |ULTIMATE.start_main_~state_40~0#1|)) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)) (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|)) [2023-11-12 02:22:39,831 INFO L899 garLoopResultBuilder]: For program point L92-3(lines 92 221) no Hoare annotation was computed. [2023-11-12 02:22:39,831 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-12 02:22:39,835 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-12 02:22:39,837 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:22:39,849 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand~32(1bv32, ~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == ~state_40~0) could not be translated [2023-11-12 02:22:39,850 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand~32(1bv32, ~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == ~state_40~0) could not be translated [2023-11-12 02:22:39,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:22:39 BoogieIcfgContainer [2023-11-12 02:22:39,853 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:22:39,853 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:22:39,854 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:22:39,854 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:22:39,854 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:22:25" (3/4) ... [2023-11-12 02:22:39,856 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:22:39,875 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 02:22:39,876 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 02:22:39,877 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 02:22:39,878 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:22:40,039 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:22:40,040 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:22:40,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:22:40,041 INFO L158 Benchmark]: Toolchain (without parser) took 15291.98ms. Allocated memory was 83.9MB in the beginning and 373.3MB in the end (delta: 289.4MB). Free memory was 59.3MB in the beginning and 221.6MB in the end (delta: -162.3MB). Peak memory consumption was 129.6MB. Max. memory is 16.1GB. [2023-11-12 02:22:40,042 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:40,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.74ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 44.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 02:22:40,042 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.91ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 41.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:22:40,043 INFO L158 Benchmark]: Boogie Preprocessor took 76.74ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 39.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:22:40,043 INFO L158 Benchmark]: RCFGBuilder took 589.48ms. Allocated memory is still 83.9MB. Free memory was 39.7MB in the beginning and 44.1MB in the end (delta: -4.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-12 02:22:40,044 INFO L158 Benchmark]: TraceAbstraction took 14003.29ms. Allocated memory was 83.9MB in the beginning and 373.3MB in the end (delta: 289.4MB). Free memory was 43.4MB in the beginning and 229.0MB in the end (delta: -185.5MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. [2023-11-12 02:22:40,044 INFO L158 Benchmark]: Witness Printer took 186.70ms. Allocated memory is still 373.3MB. Free memory was 227.9MB in the beginning and 221.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 02:22:40,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 83.9MB. Free memory is still 58.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.74ms. Allocated memory is still 83.9MB. Free memory was 59.3MB in the beginning and 44.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.91ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 41.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.74ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 39.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 589.48ms. Allocated memory is still 83.9MB. Free memory was 39.7MB in the beginning and 44.1MB in the end (delta: -4.4MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14003.29ms. Allocated memory was 83.9MB in the beginning and 373.3MB in the end (delta: 289.4MB). Free memory was 43.4MB in the beginning and 229.0MB in the end (delta: -185.5MB). Peak memory consumption was 106.0MB. Max. memory is 16.1GB. * Witness Printer took 186.70ms. Allocated memory is still 373.3MB. Free memory was 227.9MB in the beginning and 221.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand~32(1bv32, ~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == ~state_40~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand~32(1bv32, ~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == ~state_40~0) could not be translated * 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 57 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 51 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 14 mSDtfsCounter, 51 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 5 NumberOfFragments, 23 HoareAnnotationTreeSize, 1 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 124 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 11.5s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 24 QuantifiedInterpolants, 14112 SizeOfPredicates, 142 NumberOfNonLiveVariables, 713 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/48 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 [2023-11-12 02:22:40,058 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand~32(1bv32, ~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == ~state_40~0) could not be translated [2023-11-12 02:22:40,059 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_91_arg_2~0#1 : bv8 :: ~bvand~32(1bv32, ~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_91_arg_2~0#1)[7:0]))[7:0] == ~state_40~0) could not be translated Derived loop invariant: ((((1 == mask_SORT_1) && (var_7 == 0)) && (var_12 == 0)) && (0 == state_14)) RESULT: Ultimate proved your program to be correct! [2023-11-12 02:22:40,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0795c5ca-d3f0-4027-af47-3d7dc6d19202/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE