./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya --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 acffbf4568185b4df73fbdfca312807b0d1acfe4982bda3fcfc32319476145af --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:49:42,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:49:42,291 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:49:42,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:49:42,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:49:42,322 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:49:42,323 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:49:42,323 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:49:42,324 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:49:42,325 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:49:42,325 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:49:42,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:49:42,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:49:42,327 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:49:42,327 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:49:42,328 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:49:42,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:49:42,329 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:49:42,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:49:42,330 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:49:42,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:49:42,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:49:42,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:49:42,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:49:42,333 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:49:42,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:49:42,334 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:49:42,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:49:42,335 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:49:42,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:49:42,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:49:42,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:49:42,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:49:42,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:49:42,336 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:49:42,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:49:42,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:49:42,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:49:42,337 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:49:42,337 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:49:42,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:49:42,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:49:42,338 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_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acffbf4568185b4df73fbdfca312807b0d1acfe4982bda3fcfc32319476145af [2023-11-29 05:49:42,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:49:42,591 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:49:42,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:49:42,595 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:49:42,595 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:49:42,597 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2023-11-29 05:49:45,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:49:45,565 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:49:45,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2023-11-29 05:49:45,575 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/data/213b05f29/a9e3605e2e9e40b9afcf55e3ee56a9ec/FLAGcefbbf369 [2023-11-29 05:49:45,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/data/213b05f29/a9e3605e2e9e40b9afcf55e3ee56a9ec [2023-11-29 05:49:45,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:49:45,589 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:49:45,591 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:49:45,591 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:49:45,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:49:45,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:45,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10d5ee4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45, skipping insertion in model container [2023-11-29 05:49:45,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:45,634 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:49:45,767 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_e0fe2043-51bd-442d-a045-d037df4daeb7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i[919,932] [2023-11-29 05:49:45,844 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:49:45,857 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:49:45,869 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_e0fe2043-51bd-442d-a045-d037df4daeb7/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i[919,932] [2023-11-29 05:49:45,912 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:49:45,929 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:49:45,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45 WrapperNode [2023-11-29 05:49:45,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:49:45,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:49:45,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:49:45,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:49:45,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:45,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,002 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 314 [2023-11-29 05:49:46,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:49:46,003 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:49:46,003 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:49:46,003 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:49:46,015 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,020 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,043 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 05:49:46,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,061 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,073 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:49:46,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:49:46,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:49:46,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:49:46,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (1/1) ... [2023-11-29 05:49:46,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:49:46,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:46,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:49:46,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:49:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:49:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 05:49:46,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 05:49:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:49:46,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:49:46,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:49:46,236 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:49:46,239 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:49:46,750 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:49:46,780 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:49:46,780 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 05:49:46,780 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:49:46 BoogieIcfgContainer [2023-11-29 05:49:46,780 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:49:46,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:49:46,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:49:46,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:49:46,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:49:45" (1/3) ... [2023-11-29 05:49:46,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:49:46, skipping insertion in model container [2023-11-29 05:49:46,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:49:45" (2/3) ... [2023-11-29 05:49:46,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25708e7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:49:46, skipping insertion in model container [2023-11-29 05:49:46,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:49:46" (3/3) ... [2023-11-29 05:49:46,788 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-10.i [2023-11-29 05:49:46,802 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:49:46,803 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 05:49:46,857 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:49:46,863 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;@590723c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:49:46,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 05:49:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-29 05:49:46,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-11-29 05:49:46,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:46,888 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:46,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:49:46,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:46,894 INFO L85 PathProgramCache]: Analyzing trace with hash -655932038, now seen corresponding path program 1 times [2023-11-29 05:49:46,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:46,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032979170] [2023-11-29 05:49:46,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:46,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:47,124 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:47,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342623498] [2023-11-29 05:49:47,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:47,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:47,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:47,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:47,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:49:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:47,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:49:47,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2023-11-29 05:49:47,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:49:47,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:47,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032979170] [2023-11-29 05:49:47,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:47,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342623498] [2023-11-29 05:49:47,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342623498] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:49:47,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:49:47,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 05:49:47,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486615605] [2023-11-29 05:49:47,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:49:47,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:49:47,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:47,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:49:47,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:49:47,957 INFO L87 Difference]: Start difference. First operand has 124 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 80 states have internal predecessors, (119), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-11-29 05:49:48,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:48,331 INFO L93 Difference]: Finished difference Result 367 states and 692 transitions. [2023-11-29 05:49:48,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:49:48,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258 [2023-11-29 05:49:48,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:48,348 INFO L225 Difference]: With dead ends: 367 [2023-11-29 05:49:48,349 INFO L226 Difference]: Without dead ends: 244 [2023-11-29 05:49:48,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:49:48,358 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 185 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:48,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 757 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:49:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-29 05:49:48,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 193. [2023-11-29 05:49:48,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 106 states have (on average 1.3396226415094339) internal successors, (142), 106 states have internal predecessors, (142), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2023-11-29 05:49:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 310 transitions. [2023-11-29 05:49:48,462 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 310 transitions. Word has length 258 [2023-11-29 05:49:48,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:48,464 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 310 transitions. [2023-11-29 05:49:48,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2023-11-29 05:49:48,465 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 310 transitions. [2023-11-29 05:49:48,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-11-29 05:49:48,471 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:48,472 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:48,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:49:48,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 05:49:48,673 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:49:48,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash -545220031, now seen corresponding path program 1 times [2023-11-29 05:49:48,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:48,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626300359] [2023-11-29 05:49:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:48,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:48,747 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:48,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1739730215] [2023-11-29 05:49:48,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:48,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:48,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:48,758 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:48,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:49:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:48,947 INFO L262 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-29 05:49:48,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:49:50,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1777 proven. 249 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2023-11-29 05:49:50,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:49:51,673 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 102 proven. 258 refuted. 0 times theorem prover too weak. 3084 trivial. 0 not checked. [2023-11-29 05:49:51,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:49:51,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626300359] [2023-11-29 05:49:51,674 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 05:49:51,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1739730215] [2023-11-29 05:49:51,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1739730215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 05:49:51,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 05:49:51,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-11-29 05:49:51,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52935105] [2023-11-29 05:49:51,675 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 05:49:51,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-29 05:49:51,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:49:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-29 05:49:51,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 05:49:51,680 INFO L87 Difference]: Start difference. First operand 193 states and 310 transitions. Second operand has 34 states, 33 states have (on average 3.242424242424242) internal successors, (107), 32 states have internal predecessors, (107), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) [2023-11-29 05:49:56,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:49:56,141 INFO L93 Difference]: Finished difference Result 859 states and 1366 transitions. [2023-11-29 05:49:56,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-11-29 05:49:56,142 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 3.242424242424242) internal successors, (107), 32 states have internal predecessors, (107), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) Word has length 259 [2023-11-29 05:49:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:49:56,150 INFO L225 Difference]: With dead ends: 859 [2023-11-29 05:49:56,150 INFO L226 Difference]: Without dead ends: 738 [2023-11-29 05:49:56,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2080, Invalid=6662, Unknown=0, NotChecked=0, Total=8742 [2023-11-29 05:49:56,157 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 2039 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:49:56,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 2484 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-29 05:49:56,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2023-11-29 05:49:56,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 352. [2023-11-29 05:49:56,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 248 states have (on average 1.4314516129032258) internal successors, (355), 250 states have internal predecessors, (355), 90 states have call successors, (90), 13 states have call predecessors, (90), 13 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-11-29 05:49:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 535 transitions. [2023-11-29 05:49:56,223 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 535 transitions. Word has length 259 [2023-11-29 05:49:56,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:49:56,224 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 535 transitions. [2023-11-29 05:49:56,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 3.242424242424242) internal successors, (107), 32 states have internal predecessors, (107), 7 states have call successors, (73), 4 states have call predecessors, (73), 9 states have return successors, (74), 7 states have call predecessors, (74), 7 states have call successors, (74) [2023-11-29 05:49:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 535 transitions. [2023-11-29 05:49:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2023-11-29 05:49:56,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:49:56,230 INFO L195 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:49:56,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:49:56,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:56,431 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:49:56,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:49:56,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1119209151, now seen corresponding path program 1 times [2023-11-29 05:49:56,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:49:56,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063323437] [2023-11-29 05:49:56,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:56,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:49:56,491 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 05:49:56,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118059915] [2023-11-29 05:49:56,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:49:56,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:49:56,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:49:56,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:49:56,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0fe2043-51bd-442d-a045-d037df4daeb7/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:49:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:49:56,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-29 05:49:56,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:50:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1585 proven. 534 refuted. 0 times theorem prover too weak. 1325 trivial. 0 not checked. [2023-11-29 05:50:05,424 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 05:51:21,252 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:52:11,089 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 05:54:40,491 WARN L293 SmtUtils]: Spent 13.63s on a formula simplification. DAG size of input: 211 DAG size of output: 112 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:55:00,830 WARN L293 SmtUtils]: Spent 16.69s on a formula simplification. DAG size of input: 194 DAG size of output: 136 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:55:25,447 WARN L293 SmtUtils]: Spent 17.99s on a formula simplification. DAG size of input: 248 DAG size of output: 146 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:56:27,034 WARN L293 SmtUtils]: Spent 32.68s on a formula simplification. DAG size of input: 251 DAG size of output: 157 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:56:50,774 WARN L293 SmtUtils]: Spent 9.03s on a formula simplification. DAG size of input: 75 DAG size of output: 65 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:57:22,519 WARN L293 SmtUtils]: Spent 27.35s on a formula simplification. DAG size of input: 212 DAG size of output: 144 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:57:27,931 WARN L293 SmtUtils]: Spent 5.31s on a formula simplification that was a NOOP. DAG size: 72 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:57:37,621 WARN L293 SmtUtils]: Spent 6.09s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:58:23,538 WARN L293 SmtUtils]: Spent 37.12s on a formula simplification. DAG size of input: 201 DAG size of output: 132 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:59:29,447 WARN L293 SmtUtils]: Spent 22.00s on a formula simplification. DAG size of input: 170 DAG size of output: 122 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:59:39,767 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 61 DAG size of output: 51 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 05:59:55,527 WARN L293 SmtUtils]: Spent 14.01s on a formula simplification. DAG size of input: 177 DAG size of output: 107 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:01:08,858 WARN L293 SmtUtils]: Spent 18.80s on a formula simplification. DAG size of input: 196 DAG size of output: 101 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:01:41,081 WARN L293 SmtUtils]: Spent 19.25s on a formula simplification. DAG size of input: 200 DAG size of output: 106 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:02:00,907 WARN L293 SmtUtils]: Spent 19.74s on a formula simplification. DAG size of input: 85 DAG size of output: 75 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:03:07,045 WARN L293 SmtUtils]: Spent 24.13s on a formula simplification. DAG size of input: 198 DAG size of output: 92 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:03:38,710 WARN L293 SmtUtils]: Spent 24.33s on a formula simplification. DAG size of input: 187 DAG size of output: 133 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:03:50,125 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification. DAG size of input: 78 DAG size of output: 70 (called from [L 183] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionTir.tryToEliminateOne) [2023-11-29 06:04:43,913 WARN L293 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)