./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d8ee33f278cd93a3b1e0d551730c6407889b70e338ebc3c857541220d9b0f75f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:03:01,732 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:03:01,813 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 21:03:01,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:03:01,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:03:01,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:03:01,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:03:01,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:03:01,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:03:01,852 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:03:01,852 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:03:01,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:03:01,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:03:01,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:03:01,855 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:03:01,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:03:01,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:03:01,857 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:03:01,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:03:01,858 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:03:01,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:03:01,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:03:01,860 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:03:01,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:03:01,861 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:03:01,874 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:03:01,875 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:03:01,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:03:01,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:03:01,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:03:01,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:03:01,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:01,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:03:01,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:03:01,879 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:03:01,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:03:01,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:03:01,881 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:03:01,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:03:01,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:03:01,882 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:03:01,882 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:03:01,882 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_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8ee33f278cd93a3b1e0d551730c6407889b70e338ebc3c857541220d9b0f75f [2023-11-21 21:03:02,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:03:02,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:03:02,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:03:02,230 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:03:02,231 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:03:02,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c [2023-11-21 21:03:05,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:03:05,593 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:03:05,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c [2023-11-21 21:03:05,605 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/data/f21942c1e/ac41eb04b0dc43dfa193645654f5fec5/FLAG701faab2f [2023-11-21 21:03:05,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/data/f21942c1e/ac41eb04b0dc43dfa193645654f5fec5 [2023-11-21 21:03:05,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:03:05,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:03:05,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:05,631 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:03:05,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:03:05,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:05,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@360babe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05, skipping insertion in model container [2023-11-21 21:03:05,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:05,662 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:03:05,855 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_3b20049c-7dcc-4271-8864-3c46865a02ce/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c[597,610] [2023-11-21 21:03:05,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:05,889 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:03:05,906 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_3b20049c-7dcc-4271-8864-3c46865a02ce/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound10.c[597,610] [2023-11-21 21:03:05,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:05,933 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:03:05,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05 WrapperNode [2023-11-21 21:03:05,933 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:05,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:05,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:03:05,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:03:05,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:05,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:05,968 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 55 [2023-11-21 21:03:05,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:05,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:03:05,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:03:05,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:03:05,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:05,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:05,986 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,000 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 21:03:06,009 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:03:06,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:03:06,045 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:03:06,045 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:03:06,046 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (1/1) ... [2023-11-21 21:03:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:06,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:06,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:03:06,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:03:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:03:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:03:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:03:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:03:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 21:03:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 21:03:06,201 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:03:06,203 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:03:06,404 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:03:06,458 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:03:06,458 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:03:06,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:06 BoogieIcfgContainer [2023-11-21 21:03:06,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:03:06,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:03:06,465 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:03:06,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:03:06,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:03:05" (1/3) ... [2023-11-21 21:03:06,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140e687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:06, skipping insertion in model container [2023-11-21 21:03:06,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:05" (2/3) ... [2023-11-21 21:03:06,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140e687b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:06, skipping insertion in model container [2023-11-21 21:03:06,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:06" (3/3) ... [2023-11-21 21:03:06,474 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound10.c [2023-11-21 21:03:06,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:03:06,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:03:06,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:03:06,570 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;@1904bafd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:03:06,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:03:06,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 21:03:06,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:06,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:06,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:06,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:06,593 INFO L85 PathProgramCache]: Analyzing trace with hash -26250642, now seen corresponding path program 1 times [2023-11-21 21:03:06,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:06,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948909148] [2023-11-21 21:03:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:06,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:06,785 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:03:06,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969871130] [2023-11-21 21:03:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:06,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:06,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:06,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:06,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 21:03:06,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:06,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 21:03:06,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:07,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 21:03:07,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948909148] [2023-11-21 21:03:07,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:03:07,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969871130] [2023-11-21 21:03:07,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969871130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:03:07,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:03:07,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:03:07,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811555672] [2023-11-21 21:03:07,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:03:07,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 21:03:07,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:07,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 21:03:07,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:03:07,309 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:07,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:07,519 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2023-11-21 21:03:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:03:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-21 21:03:07,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:03:07,532 INFO L225 Difference]: With dead ends: 41 [2023-11-21 21:03:07,532 INFO L226 Difference]: Without dead ends: 21 [2023-11-21 21:03:07,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:03:07,540 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 10 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:03:07,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 37 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:03:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-21 21:03:07,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-21 21:03:07,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-11-21 21:03:07,594 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 7 [2023-11-21 21:03:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:03:07,594 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-21 21:03:07,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:03:07,595 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-21 21:03:07,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 21:03:07,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:07,597 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:07,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:07,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 21:03:07,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:07,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:07,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1971909778, now seen corresponding path program 1 times [2023-11-21 21:03:07,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054737992] [2023-11-21 21:03:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:07,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:07,836 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:03:07,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455189505] [2023-11-21 21:03:07,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:07,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:07,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:07,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:07,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 21:03:07,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:07,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 21:03:07,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:08,390 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:08,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:03:08,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:08,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:08,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054737992] [2023-11-21 21:03:08,671 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:03:08,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455189505] [2023-11-21 21:03:08,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455189505] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:03:08,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 21:03:08,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2023-11-21 21:03:08,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530056097] [2023-11-21 21:03:08,672 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 21:03:08,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 21:03:08,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:08,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 21:03:08,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-21 21:03:08,682 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:08,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:08,888 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2023-11-21 21:03:08,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 21:03:08,889 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2023-11-21 21:03:08,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:03:08,890 INFO L225 Difference]: With dead ends: 35 [2023-11-21 21:03:08,890 INFO L226 Difference]: Without dead ends: 31 [2023-11-21 21:03:08,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-11-21 21:03:08,892 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 21 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:03:08,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 58 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:03:08,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-21 21:03:08,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2023-11-21 21:03:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-11-21 21:03:08,905 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 15 [2023-11-21 21:03:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:03:08,905 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-11-21 21:03:08,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:08,906 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-11-21 21:03:08,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 21:03:08,907 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:08,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:08,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:09,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:09,121 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:09,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash 927087193, now seen corresponding path program 1 times [2023-11-21 21:03:09,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:09,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423040780] [2023-11-21 21:03:09,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:09,134 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:03:09,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842589314] [2023-11-21 21:03:09,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:09,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:09,137 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:09,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 21:03:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:09,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 21:03:09,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:09,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:09,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:03:09,275 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:09,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:09,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423040780] [2023-11-21 21:03:09,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:03:09,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842589314] [2023-11-21 21:03:09,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842589314] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:03:09,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 21:03:09,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-21 21:03:09,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217902390] [2023-11-21 21:03:09,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 21:03:09,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 21:03:09,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:09,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 21:03:09,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-21 21:03:09,282 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:09,377 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2023-11-21 21:03:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 21:03:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-11-21 21:03:09,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:03:09,381 INFO L225 Difference]: With dead ends: 59 [2023-11-21 21:03:09,382 INFO L226 Difference]: Without dead ends: 53 [2023-11-21 21:03:09,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-21 21:03:09,385 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 28 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:03:09,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 59 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:03:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-21 21:03:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2023-11-21 21:03:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 21:03:09,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-11-21 21:03:09,418 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 16 [2023-11-21 21:03:09,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:03:09,418 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-11-21 21:03:09,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:03:09,419 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2023-11-21 21:03:09,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-21 21:03:09,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:09,421 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:09,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:09,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:09,637 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:09,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:09,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1587911935, now seen corresponding path program 1 times [2023-11-21 21:03:09,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:09,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722169049] [2023-11-21 21:03:09,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:09,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:09,663 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:03:09,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1102710804] [2023-11-21 21:03:09,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:09,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:09,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:09,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:09,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-21 21:03:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:03:09,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-21 21:03:09,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:03:10,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:03:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-21 21:03:10,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:10,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722169049] [2023-11-21 21:03:10,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:03:10,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102710804] [2023-11-21 21:03:10,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102710804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:03:10,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 21:03:10,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2023-11-21 21:03:10,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655779981] [2023-11-21 21:03:10,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 21:03:10,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-21 21:03:10,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:10,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-21 21:03:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-11-21 21:03:10,683 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 17 states, 13 states have (on average 2.076923076923077) internal successors, (27), 15 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 21:03:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:11,149 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2023-11-21 21:03:11,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-21 21:03:11,150 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 2.076923076923077) internal successors, (27), 15 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 22 [2023-11-21 21:03:11,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:03:11,151 INFO L225 Difference]: With dead ends: 49 [2023-11-21 21:03:11,151 INFO L226 Difference]: Without dead ends: 41 [2023-11-21 21:03:11,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2023-11-21 21:03:11,152 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 24 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:03:11,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 61 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:03:11,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-11-21 21:03:11,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-21 21:03:11,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.032258064516129) internal successors, (32), 31 states have internal predecessors, (32), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 21:03:11,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2023-11-21 21:03:11,173 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 22 [2023-11-21 21:03:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:03:11,174 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2023-11-21 21:03:11,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 2.076923076923077) internal successors, (27), 15 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-21 21:03:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2023-11-21 21:03:11,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-21 21:03:11,176 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:11,176 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:11,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:11,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:11,391 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:11,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:11,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1355163283, now seen corresponding path program 2 times [2023-11-21 21:03:11,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:11,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172843134] [2023-11-21 21:03:11,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:11,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:11,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:03:11,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222303562] [2023-11-21 21:03:11,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 21:03:11,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:11,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:11,431 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:11,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-21 21:03:11,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-21 21:03:11,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 21:03:11,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-21 21:03:11,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 21:03:11,625 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:03:11,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 21:03:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-21 21:03:11,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:03:11,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172843134] [2023-11-21 21:03:11,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 21:03:11,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222303562] [2023-11-21 21:03:11,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222303562] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 21:03:11,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 21:03:11,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-21 21:03:11,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456547567] [2023-11-21 21:03:11,756 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 21:03:11,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-21 21:03:11,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:03:11,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-21 21:03:11,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2023-11-21 21:03:11,759 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 21:03:12,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:03:12,022 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2023-11-21 21:03:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-21 21:03:12,023 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 40 [2023-11-21 21:03:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:03:12,027 INFO L225 Difference]: With dead ends: 95 [2023-11-21 21:03:12,027 INFO L226 Difference]: Without dead ends: 89 [2023-11-21 21:03:12,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=322, Unknown=0, NotChecked=0, Total=506 [2023-11-21 21:03:12,029 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 23 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 21:03:12,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 90 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 21:03:12,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-11-21 21:03:12,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-11-21 21:03:12,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.0149253731343284) internal successors, (68), 67 states have internal predecessors, (68), 11 states have call successors, (11), 11 states have call predecessors, (11), 10 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-21 21:03:12,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2023-11-21 21:03:12,101 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 40 [2023-11-21 21:03:12,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:03:12,102 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2023-11-21 21:03:12,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-21 21:03:12,103 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2023-11-21 21:03:12,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-21 21:03:12,108 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:12,108 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-11-21 21:03:12,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:12,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:12,333 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:12,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:12,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1093149589, now seen corresponding path program 3 times [2023-11-21 21:03:12,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:12,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473121715] [2023-11-21 21:03:12,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:12,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:12,362 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 21:03:12,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264205784] [2023-11-21 21:03:12,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-21 21:03:12,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 21:03:12,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:12,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 21:03:12,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-21 21:03:18,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-21 21:03:18,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2023-11-21 21:03:18,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:18,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:18,854 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:03:18,856 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:03:18,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-21 21:03:19,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-21 21:03:19,067 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-11-21 21:03:19,071 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:03:19,101 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,103 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,103 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,103 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,104 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,105 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,108 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,109 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,110 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,111 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,112 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,113 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,114 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,116 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,117 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,118 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,119 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,120 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,121 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,122 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:03:19 BoogieIcfgContainer [2023-11-21 21:03:19,143 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:03:19,143 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:03:19,143 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:03:19,144 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:03:19,144 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:06" (3/4) ... [2023-11-21 21:03:19,145 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 21:03:19,164 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,165 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,165 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,165 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,166 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,166 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,166 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,167 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,167 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,167 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,168 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,168 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,168 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,168 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,169 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,169 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,169 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,170 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,170 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,170 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,171 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,171 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,171 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,171 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,172 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,172 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,173 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,174 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,175 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,176 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,177 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,183 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated [2023-11-21 21:03:19,184 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,185 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated [2023-11-21 21:03:19,243 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:03:19,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:03:19,244 INFO L158 Benchmark]: Toolchain (without parser) took 13614.83ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 86.5MB in the beginning and 95.6MB in the end (delta: -9.0MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,244 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:19,244 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.61ms. Allocated memory is still 130.0MB. Free memory was 86.5MB in the beginning and 75.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.55ms. Allocated memory is still 130.0MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,245 INFO L158 Benchmark]: Boogie Preprocessor took 73.77ms. Allocated memory is still 130.0MB. Free memory was 74.0MB in the beginning and 72.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,245 INFO L158 Benchmark]: RCFGBuilder took 416.75ms. Allocated memory is still 130.0MB. Free memory was 72.3MB in the beginning and 58.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,246 INFO L158 Benchmark]: TraceAbstraction took 12678.68ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 58.1MB in the beginning and 102.9MB in the end (delta: -44.8MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,246 INFO L158 Benchmark]: Witness Printer took 99.72ms. Allocated memory is still 178.3MB. Free memory was 102.9MB in the beginning and 95.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 21:03:19,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 130.0MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.61ms. Allocated memory is still 130.0MB. Free memory was 86.5MB in the beginning and 75.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.55ms. Allocated memory is still 130.0MB. Free memory was 75.4MB in the beginning and 74.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.77ms. Allocated memory is still 130.0MB. Free memory was 74.0MB in the beginning and 72.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.75ms. Allocated memory is still 130.0MB. Free memory was 72.3MB in the beginning and 58.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 12678.68ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 58.1MB in the beginning and 102.9MB in the end (delta: -44.8MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 99.72ms. Allocated memory is still 178.3MB. Free memory was 102.9MB in the beginning and 95.6MB in the end (delta: 7.3MB). 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: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post7 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 - CounterExampleResult [Line: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L21] int counter = 0; [L23] int X, Y; [L24] long long x, y, v, xy, yx; [L25] X = __VERIFIER_nondet_int() [L26] Y = __VERIFIER_nondet_int() [L27] v = ((long long) 2 * Y) - X [L28] y = 0 [L29] x = 0 VAL [X=23, Y=18, counter=0, v=13, x=0, y=0] [L31] EXPR counter++ VAL [X=23, Y=18, counter=1, v=13, x=0, y=0] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=1, v=13, x=0, x=0, x=0, y=0] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=1] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=1] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=1, v=13, x=0, x=0, x=0, y=0] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=1, v=3, x=0, x=0, x=1, y=1] [L31] EXPR counter++ VAL [X=23, Y=18, counter=2, v=3, x=0, x=0, x=1, y=1] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=2, v=3, x=1, x=18, x=23, y=1] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=2] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=2] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=2, v=3, x=1, x=18, x=23, y=1] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=2, v=-7, x=18, x=2, x=23, y=2] [L31] EXPR counter++ VAL [X=23, Y=18, counter=3, v=-7, x=18, x=2, x=23, y=2] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=3, v=-7, x=2, x=36, x=46, y=2] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=3] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=3] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=3, v=-7, x=2, x=36, x=46, y=2] [L35] COND FALSE !(!(x <= X)) [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y [L45] x++ VAL [X=23, Y=18, counter=3, v=29, x=3, x=36, x=46, y=2] [L31] EXPR counter++ VAL [X=23, Y=18, counter=4, v=29, x=3, x=36, x=46, y=2] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=4, v=29, x=3, x=46, x=54, y=2] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=4] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=4] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=4, v=29, x=3, x=46, x=54, y=2] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=4, v=19, x=4, x=46, x=54, y=3] [L31] EXPR counter++ VAL [X=23, Y=18, counter=5, v=19, x=4, x=46, x=54, y=3] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=5, v=19, x=4, x=69, x=72, y=3] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=5] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=5] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=5, v=19, x=4, x=69, x=72, y=3] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=5, v=9, x=5, x=69, x=72, y=4] [L31] EXPR counter++ VAL [X=23, Y=18, counter=6, v=9, x=5, x=69, x=72, y=4] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=6, v=9, x=5, x=90, x=92, y=4] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=6] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=6] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=6, v=9, x=5, x=90, x=92, y=4] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=6, v=-1, x=6, x=90, x=92, y=5] [L31] EXPR counter++ VAL [X=23, Y=18, counter=7, v=-1, x=6, x=90, x=92, y=5] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=7, v=-1, x=108, x=115, x=6, y=5] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=7] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=7] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=7, v=-1, x=108, x=115, x=6, y=5] [L35] COND FALSE !(!(x <= X)) [L39] COND TRUE v < 0 [L40] v = v + (long long) 2 * Y [L45] x++ VAL [X=23, Y=18, counter=7, v=35, x=108, x=115, x=7, y=5] [L31] EXPR counter++ VAL [X=23, Y=18, counter=8, v=35, x=108, x=115, x=7, y=5] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=8, v=35, x=115, x=126, x=7, y=5] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=8] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=8] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=8, v=35, x=115, x=126, x=7, y=5] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=8, v=25, x=115, x=126, x=8, y=6] [L31] EXPR counter++ VAL [X=23, Y=18, counter=9, v=25, x=115, x=126, x=8, y=6] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=9, v=25, x=138, x=144, x=8, y=6] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=9] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=9] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=9, v=25, x=138, x=144, x=8, y=6] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=9, v=15, x=138, x=144, x=9, y=7] [L31] EXPR counter++ VAL [X=23, Y=18, counter=10, v=15, x=138, x=144, x=9, y=7] [L31] COND TRUE counter++<10 [L32] yx = (long long) Y*x [L33] xy = (long long) X*y VAL [X=23, Y=18, counter=10, v=15, x=161, x=162, x=9, y=7] [L34] CALL __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [\old(cond)=1, counter=10] [L14] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1, counter=10] [L34] RET __VERIFIER_assert( 2*yx - 2*xy - X + (long long) 2*Y - v == 0) VAL [X=23, Y=18, counter=10, v=15, x=161, x=162, x=9, y=7] [L35] COND FALSE !(!(x <= X)) [L39] COND FALSE !(v < 0) [L42] v = v + 2 * ((long long) Y - X) [L43] y++ [L45] x++ VAL [X=23, Y=18, counter=10, v=5, x=10, x=161, x=162, y=8] [L31] EXPR counter++ VAL [X=23, Y=18, counter=11, v=5, x=10, x=161, x=162, y=8] [L31] COND FALSE !(counter++<10) [L47] xy = (long long) x*y [L48] yx = (long long) Y*x VAL [X=23, Y=18, counter=11, v=5, x=10, x=180, x=80, y=8] [L49] CALL __VERIFIER_assert(2*yx - 2*xy - X + (long long) 2*Y - v + 2*y == 0) VAL [\old(cond)=0, counter=11] [L14] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, counter=11] [L16] reach_error() VAL [\old(cond)=0, cond=0, counter=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.5s, OverallIterations: 6, TraceHistogramMax: 11, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 107 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 305 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 260 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 317 IncrementalHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 45 mSDtfsCounter, 317 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 135 SyntacticMatches, 4 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=89occurred in iteration=5, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.5s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 184 ConstructedInterpolants, 0 QuantifiedInterpolants, 1206 SizeOfPredicates, 18 NumberOfNonLiveVariables, 423 ConjunctsInSsa, 73 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 68/170 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 proved your program to be incorrect! [2023-11-21 21:03:19,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b20049c-7dcc-4271-8864-3c46865a02ce/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE