./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/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 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:31:50,019 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:31:50,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 01:31:50,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:31:50,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:31:50,112 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:31:50,113 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:31:50,113 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:31:50,114 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:31:50,114 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:31:50,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:31:50,115 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:31:50,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:31:50,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:31:50,117 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:31:50,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:31:50,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:31:50,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:31:50,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:31:50,120 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:31:50,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:31:50,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:31:50,122 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:31:50,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:31:50,123 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:31:50,123 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:31:50,124 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:31:50,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:31:50,125 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:31:50,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:31:50,125 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:31:50,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:31:50,126 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:31:50,126 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:31:50,127 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:31:50,127 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:31:50,127 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:31:50,127 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:31:50,127 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:31:50,127 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:31:50,128 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:31:50,128 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:31:50,128 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2023-11-29 01:31:50,375 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:31:50,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:31:50,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:31:50,402 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:31:50,402 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:31:50,403 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2023-11-29 01:31:53,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:31:53,440 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:31:53,441 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2023-11-29 01:31:53,463 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/data/d855f3638/fdc5740ec3884074b51b93242bea9271/FLAG37ed82110 [2023-11-29 01:31:53,490 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/data/d855f3638/fdc5740ec3884074b51b93242bea9271 [2023-11-29 01:31:53,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:31:53,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:31:53,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:31:53,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:31:53,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:31:53,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:31:53" (1/1) ... [2023-11-29 01:31:53,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c06e5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:53, skipping insertion in model container [2023-11-29 01:31:53,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:31:53" (1/1) ... [2023-11-29 01:31:53,569 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:31:54,062 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2023-11-29 01:31:54,077 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2023-11-29 01:31:54,185 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2023-11-29 01:31:54,186 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2023-11-29 01:31:54,195 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:31:54,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:31:54,252 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44118,44131] [2023-11-29 01:31:54,255 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[44660,44673] [2023-11-29 01:31:54,320 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56247,56260] [2023-11-29 01:31:54,321 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_43e00349-d5f8-4c57-a5e9-c34acb403ad9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i[56368,56381] [2023-11-29 01:31:54,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:31:54,391 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:31:54,400 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:31:54,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54 WrapperNode [2023-11-29 01:31:54,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:31:54,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:31:54,402 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:31:54,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:31:54,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,447 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,520 INFO L138 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1373 [2023-11-29 01:31:54,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:31:54,521 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:31:54,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:31:54,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:31:54,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,551 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,641 INFO L175 MemorySlicer]: Split 264 memory accesses to 5 slices as follows [220, 2, 3, 34, 5]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2, 0, 0, 0]. The 56 writes are split as follows [49, 0, 2, 4, 1]. [2023-11-29 01:31:54,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:31:54,723 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:31:54,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:31:54,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:31:54,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (1/1) ... [2023-11-29 01:31:54,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:31:54,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:31:54,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:31:54,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:31:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:31:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 01:31:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:31:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:31:54,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-29 01:31:54,790 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:31:54,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:31:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:31:54,791 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-29 01:31:54,791 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-29 01:31:54,792 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:31:54,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:31:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:31:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:31:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:31:54,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:31:54,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:31:55,004 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:31:55,006 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:31:56,310 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:31:56,360 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:31:56,360 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-29 01:31:56,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:31:56 BoogieIcfgContainer [2023-11-29 01:31:56,361 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:31:56,364 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:31:56,364 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:31:56,367 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:31:56,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:31:53" (1/3) ... [2023-11-29 01:31:56,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb0a525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:31:56, skipping insertion in model container [2023-11-29 01:31:56,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:31:54" (2/3) ... [2023-11-29 01:31:56,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cb0a525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:31:56, skipping insertion in model container [2023-11-29 01:31:56,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:31:56" (3/3) ... [2023-11-29 01:31:56,369 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2023-11-29 01:31:56,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:31:56,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 01:31:56,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:31:56,451 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;@16201dcf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:31:56,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-29 01:31:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 382 states, 360 states have (on average 1.6861111111111111) internal successors, (607), 364 states have internal predecessors, (607), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-29 01:31:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 01:31:56,464 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:56,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:31:56,465 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:31:56,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:56,470 INFO L85 PathProgramCache]: Analyzing trace with hash 870067896, now seen corresponding path program 1 times [2023-11-29 01:31:56,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:56,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559011009] [2023-11-29 01:31:56,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:56,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:31:56,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:31:56,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:31:56,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559011009] [2023-11-29 01:31:56,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559011009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:31:56,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:31:56,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:31:56,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067414388] [2023-11-29 01:31:56,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:31:56,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:31:56,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:31:56,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:31:56,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:31:56,680 INFO L87 Difference]: Start difference. First operand has 382 states, 360 states have (on average 1.6861111111111111) internal successors, (607), 364 states have internal predecessors, (607), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:56,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:56,763 INFO L93 Difference]: Finished difference Result 761 states and 1276 transitions. [2023-11-29 01:31:56,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:31:56,765 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-29 01:31:56,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:56,777 INFO L225 Difference]: With dead ends: 761 [2023-11-29 01:31:56,777 INFO L226 Difference]: Without dead ends: 378 [2023-11-29 01:31:56,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:31:56,786 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:56,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 553 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:31:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-29 01:31:56,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2023-11-29 01:31:56,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 357 states have (on average 1.495798319327731) internal successors, (534), 362 states have internal predecessors, (534), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:31:56,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 559 transitions. [2023-11-29 01:31:56,873 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 559 transitions. Word has length 7 [2023-11-29 01:31:56,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:56,873 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 559 transitions. [2023-11-29 01:31:56,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:56,874 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 559 transitions. [2023-11-29 01:31:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 01:31:56,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:56,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:31:56,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:31:56,876 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:31:56,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:56,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1296453882, now seen corresponding path program 1 times [2023-11-29 01:31:56,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:56,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098400549] [2023-11-29 01:31:56,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:56,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:31:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:31:57,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:31:57,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098400549] [2023-11-29 01:31:57,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098400549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:31:57,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:31:57,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:31:57,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526305935] [2023-11-29 01:31:57,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:31:57,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:31:57,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:31:57,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:31:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:31:57,051 INFO L87 Difference]: Start difference. First operand 378 states and 559 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:57,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:57,260 INFO L93 Difference]: Finished difference Result 923 states and 1374 transitions. [2023-11-29 01:31:57,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:31:57,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 01:31:57,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:57,266 INFO L225 Difference]: With dead ends: 923 [2023-11-29 01:31:57,267 INFO L226 Difference]: Without dead ends: 734 [2023-11-29 01:31:57,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:31:57,269 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 512 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1625 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:57,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1625 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:31:57,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-11-29 01:31:57,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 380. [2023-11-29 01:31:57,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 359 states have (on average 1.4930362116991645) internal successors, (536), 364 states have internal predecessors, (536), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:31:57,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 561 transitions. [2023-11-29 01:31:57,304 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 561 transitions. Word has length 9 [2023-11-29 01:31:57,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:57,304 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 561 transitions. [2023-11-29 01:31:57,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:57,304 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 561 transitions. [2023-11-29 01:31:57,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:31:57,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:57,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:57,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:31:57,308 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:31:57,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash -45215991, now seen corresponding path program 1 times [2023-11-29 01:31:57,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:57,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125946616] [2023-11-29 01:31:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:57,348 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:31:57,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985612729] [2023-11-29 01:31:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:57,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:57,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:31:57,352 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:31:57,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:31:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:31:57,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:31:57,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:31:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:31:57,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:31:57,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:31:57,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125946616] [2023-11-29 01:31:57,655 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:31:57,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985612729] [2023-11-29 01:31:57,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985612729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:31:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:31:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:31:57,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707118638] [2023-11-29 01:31:57,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:31:57,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:31:57,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:31:57,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:31:57,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:31:57,658 INFO L87 Difference]: Start difference. First operand 380 states and 561 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:57,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:57,766 INFO L93 Difference]: Finished difference Result 778 states and 1150 transitions. [2023-11-29 01:31:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:31:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 01:31:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:57,770 INFO L225 Difference]: With dead ends: 778 [2023-11-29 01:31:57,770 INFO L226 Difference]: Without dead ends: 401 [2023-11-29 01:31:57,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:31:57,772 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 9 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:57,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1050 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:31:57,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-29 01:31:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 400. [2023-11-29 01:31:57,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 379 states have (on average 1.4670184696569921) internal successors, (556), 384 states have internal predecessors, (556), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:31:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 581 transitions. [2023-11-29 01:31:57,791 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 581 transitions. Word has length 64 [2023-11-29 01:31:57,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:57,792 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 581 transitions. [2023-11-29 01:31:57,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 581 transitions. [2023-11-29 01:31:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:31:57,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:57,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:57,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:31:57,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 01:31:58,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:31:58,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:58,001 INFO L85 PathProgramCache]: Analyzing trace with hash -293362485, now seen corresponding path program 1 times [2023-11-29 01:31:58,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:58,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368691517] [2023-11-29 01:31:58,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:58,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:58,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:31:58,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [18126336] [2023-11-29 01:31:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:58,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:31:58,037 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:31:58,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:31:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:31:58,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:31:58,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:31:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:31:58,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:31:58,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:31:58,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368691517] [2023-11-29 01:31:58,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:31:58,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18126336] [2023-11-29 01:31:58,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18126336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:31:58,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:31:58,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:31:58,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893758605] [2023-11-29 01:31:58,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:31:58,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:31:58,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:31:58,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:31:58,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:31:58,310 INFO L87 Difference]: Start difference. First operand 400 states and 581 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:58,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:58,430 INFO L93 Difference]: Finished difference Result 784 states and 1146 transitions. [2023-11-29 01:31:58,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:31:58,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 01:31:58,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:58,435 INFO L225 Difference]: With dead ends: 784 [2023-11-29 01:31:58,436 INFO L226 Difference]: Without dead ends: 387 [2023-11-29 01:31:58,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:31:58,441 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 165 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:58,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1423 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:31:58,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-11-29 01:31:58,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2023-11-29 01:31:58,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 365 states have (on average 1.4657534246575343) internal successors, (535), 370 states have internal predecessors, (535), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:31:58,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 560 transitions. [2023-11-29 01:31:58,467 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 560 transitions. Word has length 64 [2023-11-29 01:31:58,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:58,467 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 560 transitions. [2023-11-29 01:31:58,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 560 transitions. [2023-11-29 01:31:58,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 01:31:58,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:58,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:58,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:31:58,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:58,673 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:31:58,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:58,674 INFO L85 PathProgramCache]: Analyzing trace with hash -588857603, now seen corresponding path program 1 times [2023-11-29 01:31:58,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:58,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131803584] [2023-11-29 01:31:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:58,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:58,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:31:58,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579364898] [2023-11-29 01:31:58,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:58,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:58,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:31:58,705 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:31:58,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:31:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:31:58,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:31:58,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:31:59,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:31:59,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:31:59,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:31:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131803584] [2023-11-29 01:31:59,105 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:31:59,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579364898] [2023-11-29 01:31:59,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579364898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:31:59,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:31:59,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:31:59,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933048881] [2023-11-29 01:31:59,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:31:59,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:31:59,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:31:59,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:31:59,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:31:59,108 INFO L87 Difference]: Start difference. First operand 386 states and 560 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:59,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:31:59,523 INFO L93 Difference]: Finished difference Result 809 states and 1168 transitions. [2023-11-29 01:31:59,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:31:59,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 01:31:59,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:31:59,528 INFO L225 Difference]: With dead ends: 809 [2023-11-29 01:31:59,528 INFO L226 Difference]: Without dead ends: 426 [2023-11-29 01:31:59,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:31:59,530 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 12 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:31:59,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1856 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:31:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-11-29 01:31:59,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 423. [2023-11-29 01:31:59,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 402 states have (on average 1.4402985074626866) internal successors, (579), 407 states have internal predecessors, (579), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:31:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 604 transitions. [2023-11-29 01:31:59,549 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 604 transitions. Word has length 64 [2023-11-29 01:31:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:31:59,550 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 604 transitions. [2023-11-29 01:31:59,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:31:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 604 transitions. [2023-11-29 01:31:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-29 01:31:59,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:31:59,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:31:59,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:31:59,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:59,756 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:31:59,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:31:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 294851244, now seen corresponding path program 1 times [2023-11-29 01:31:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:31:59,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161131684] [2023-11-29 01:31:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:59,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:31:59,783 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:31:59,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1677278055] [2023-11-29 01:31:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:31:59,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:31:59,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:31:59,785 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:31:59,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:31:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:31:59,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:31:59,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:00,148 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:00,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:00,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161131684] [2023-11-29 01:32:00,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:00,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677278055] [2023-11-29 01:32:00,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677278055] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:00,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:00,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:32:00,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745743664] [2023-11-29 01:32:00,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:00,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:32:00,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:00,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:32:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:00,152 INFO L87 Difference]: Start difference. First operand 423 states and 604 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:00,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:00,786 INFO L93 Difference]: Finished difference Result 854 states and 1223 transitions. [2023-11-29 01:32:00,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:32:00,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2023-11-29 01:32:00,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:00,790 INFO L225 Difference]: With dead ends: 854 [2023-11-29 01:32:00,790 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 01:32:00,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:32:00,792 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 17 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2625 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:00,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2625 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:32:00,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 01:32:00,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 431. [2023-11-29 01:32:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 410 states have (on average 1.4414634146341463) internal successors, (591), 415 states have internal predecessors, (591), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:32:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 616 transitions. [2023-11-29 01:32:00,807 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 616 transitions. Word has length 65 [2023-11-29 01:32:00,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:00,807 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 616 transitions. [2023-11-29 01:32:00,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 616 transitions. [2023-11-29 01:32:00,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 01:32:00,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:00,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:00,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:32:01,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:01,011 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:01,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:01,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1215209784, now seen corresponding path program 1 times [2023-11-29 01:32:01,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:01,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793133310] [2023-11-29 01:32:01,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:01,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:01,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:01,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748406818] [2023-11-29 01:32:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:01,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:01,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:01,037 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:01,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:32:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:01,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:32:01,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:01,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:01,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:01,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:01,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793133310] [2023-11-29 01:32:01,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:01,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748406818] [2023-11-29 01:32:01,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748406818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:01,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:01,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:32:01,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422159729] [2023-11-29 01:32:01,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:01,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:32:01,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:01,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:32:01,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:01,376 INFO L87 Difference]: Start difference. First operand 431 states and 616 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:01,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:01,906 INFO L93 Difference]: Finished difference Result 873 states and 1250 transitions. [2023-11-29 01:32:01,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:32:01,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-29 01:32:01,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:01,910 INFO L225 Difference]: With dead ends: 873 [2023-11-29 01:32:01,910 INFO L226 Difference]: Without dead ends: 445 [2023-11-29 01:32:01,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:32:01,911 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 46 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 2704 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:01,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 2704 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 01:32:01,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-11-29 01:32:01,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 437. [2023-11-29 01:32:01,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 416 states have (on average 1.4423076923076923) internal successors, (600), 421 states have internal predecessors, (600), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 01:32:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 625 transitions. [2023-11-29 01:32:01,924 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 625 transitions. Word has length 66 [2023-11-29 01:32:01,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:01,924 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 625 transitions. [2023-11-29 01:32:01,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:01,924 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 625 transitions. [2023-11-29 01:32:01,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-29 01:32:01,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:01,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:01,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:32:02,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:02,127 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:02,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:02,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1818200988, now seen corresponding path program 1 times [2023-11-29 01:32:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:02,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589607456] [2023-11-29 01:32:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:02,151 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:02,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049032718] [2023-11-29 01:32:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:02,153 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:02,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:32:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:02,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 01:32:02,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:02,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:02,956 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:02,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:02,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589607456] [2023-11-29 01:32:02,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:02,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049032718] [2023-11-29 01:32:02,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049032718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:02,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:02,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:32:02,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046357859] [2023-11-29 01:32:02,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:02,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:32:02,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:02,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:32:02,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:02,960 INFO L87 Difference]: Start difference. First operand 437 states and 625 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:03,444 INFO L93 Difference]: Finished difference Result 448 states and 636 transitions. [2023-11-29 01:32:03,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:32:03,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2023-11-29 01:32:03,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:03,448 INFO L225 Difference]: With dead ends: 448 [2023-11-29 01:32:03,448 INFO L226 Difference]: Without dead ends: 446 [2023-11-29 01:32:03,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:32:03,449 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 511 mSDsluCounter, 2057 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 2566 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:03,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 2566 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:32:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-29 01:32:03,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2023-11-29 01:32:03,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 422 states have (on average 1.438388625592417) internal successors, (607), 428 states have internal predecessors, (607), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-29 01:32:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 634 transitions. [2023-11-29 01:32:03,466 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 634 transitions. Word has length 66 [2023-11-29 01:32:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:03,467 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 634 transitions. [2023-11-29 01:32:03,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 634 transitions. [2023-11-29 01:32:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-29 01:32:03,468 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:03,468 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:03,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:32:03,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:03,672 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:03,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:03,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1990261074, now seen corresponding path program 1 times [2023-11-29 01:32:03,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:03,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842078604] [2023-11-29 01:32:03,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:03,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:03,707 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:03,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [494466543] [2023-11-29 01:32:03,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:03,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:03,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:03,709 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:03,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:32:04,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:04,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:32:04,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:04,172 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:32:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:04,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:04,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842078604] [2023-11-29 01:32:04,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:04,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494466543] [2023-11-29 01:32:04,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494466543] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-29 01:32:04,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:32:04,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2023-11-29 01:32:04,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588452467] [2023-11-29 01:32:04,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:04,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:32:04,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:04,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:32:04,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:32:04,362 INFO L87 Difference]: Start difference. First operand 446 states and 634 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:32:04,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:04,593 INFO L93 Difference]: Finished difference Result 1884 states and 2712 transitions. [2023-11-29 01:32:04,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:32:04,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 78 [2023-11-29 01:32:04,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:04,603 INFO L225 Difference]: With dead ends: 1884 [2023-11-29 01:32:04,603 INFO L226 Difference]: Without dead ends: 1441 [2023-11-29 01:32:04,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 143 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:32:04,605 INFO L413 NwaCegarLoop]: 1063 mSDtfsCounter, 3358 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3358 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:04,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3358 Valid, 2310 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:32:04,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2023-11-29 01:32:04,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1226. [2023-11-29 01:32:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 1185 states have (on average 1.4523206751054851) internal successors, (1721), 1193 states have internal predecessors, (1721), 25 states have call successors, (25), 12 states have call predecessors, (25), 12 states have return successors, (25), 20 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-29 01:32:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1771 transitions. [2023-11-29 01:32:04,645 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1771 transitions. Word has length 78 [2023-11-29 01:32:04,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:04,646 INFO L495 AbstractCegarLoop]: Abstraction has 1226 states and 1771 transitions. [2023-11-29 01:32:04,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:32:04,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1771 transitions. [2023-11-29 01:32:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 01:32:04,647 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:04,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:04,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:32:04,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 01:32:04,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:04,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:04,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1787220407, now seen corresponding path program 1 times [2023-11-29 01:32:04,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:04,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332237136] [2023-11-29 01:32:04,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:04,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:04,897 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:04,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245600509] [2023-11-29 01:32:04,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:04,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:04,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:04,898 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:04,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:32:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:05,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:32:05,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:05,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:05,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:05,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:05,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332237136] [2023-11-29 01:32:05,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:05,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245600509] [2023-11-29 01:32:05,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245600509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:05,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:05,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:32:05,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866184655] [2023-11-29 01:32:05,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:05,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:32:05,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:05,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:32:05,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:32:05,237 INFO L87 Difference]: Start difference. First operand 1226 states and 1771 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:05,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:05,298 INFO L93 Difference]: Finished difference Result 2452 states and 3545 transitions. [2023-11-29 01:32:05,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:32:05,299 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-11-29 01:32:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:05,307 INFO L225 Difference]: With dead ends: 2452 [2023-11-29 01:32:05,307 INFO L226 Difference]: Without dead ends: 1229 [2023-11-29 01:32:05,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:32:05,310 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 0 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:05,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1084 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:32:05,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-11-29 01:32:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2023-11-29 01:32:05,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1188 states have (on average 1.4511784511784511) internal successors, (1724), 1196 states have internal predecessors, (1724), 25 states have call successors, (25), 12 states have call predecessors, (25), 12 states have return successors, (25), 20 states have call predecessors, (25), 23 states have call successors, (25) [2023-11-29 01:32:05,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1774 transitions. [2023-11-29 01:32:05,361 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1774 transitions. Word has length 79 [2023-11-29 01:32:05,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:05,361 INFO L495 AbstractCegarLoop]: Abstraction has 1229 states and 1774 transitions. [2023-11-29 01:32:05,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:05,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1774 transitions. [2023-11-29 01:32:05,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 01:32:05,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:05,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:05,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:32:05,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 01:32:05,568 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:05,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:05,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1394193397, now seen corresponding path program 1 times [2023-11-29 01:32:05,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:05,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036021855] [2023-11-29 01:32:05,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:05,616 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:05,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795517518] [2023-11-29 01:32:05,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:05,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:05,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:05,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:05,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:32:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:05,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:32:05,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:06,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:32:06,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:06,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:06,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036021855] [2023-11-29 01:32:06,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:06,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795517518] [2023-11-29 01:32:06,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795517518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:06,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:06,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:32:06,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399530346] [2023-11-29 01:32:06,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:06,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:32:06,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:06,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:32:06,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:32:06,134 INFO L87 Difference]: Start difference. First operand 1229 states and 1774 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:06,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:06,274 INFO L93 Difference]: Finished difference Result 2839 states and 4152 transitions. [2023-11-29 01:32:06,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:32:06,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2023-11-29 01:32:06,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:06,283 INFO L225 Difference]: With dead ends: 2839 [2023-11-29 01:32:06,283 INFO L226 Difference]: Without dead ends: 1613 [2023-11-29 01:32:06,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:32:06,286 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 346 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:06,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1232 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:32:06,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2023-11-29 01:32:06,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1268. [2023-11-29 01:32:06,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1239 states have (on average 1.4697336561743342) internal successors, (1821), 1245 states have internal predecessors, (1821), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 01:32:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1853 transitions. [2023-11-29 01:32:06,325 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1853 transitions. Word has length 79 [2023-11-29 01:32:06,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:06,326 INFO L495 AbstractCegarLoop]: Abstraction has 1268 states and 1853 transitions. [2023-11-29 01:32:06,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:32:06,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1853 transitions. [2023-11-29 01:32:06,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 01:32:06,327 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:06,327 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:06,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 01:32:06,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:32:06,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:06,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:06,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1548990427, now seen corresponding path program 1 times [2023-11-29 01:32:06,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:06,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752209604] [2023-11-29 01:32:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:06,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:06,580 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:06,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642970954] [2023-11-29 01:32:06,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:06,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:06,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:06,582 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:06,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:32:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:06,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:32:06,985 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:07,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:32:07,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 01:32:07,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:07,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:07,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752209604] [2023-11-29 01:32:07,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:07,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642970954] [2023-11-29 01:32:07,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642970954] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:07,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:07,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:32:07,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947033585] [2023-11-29 01:32:07,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:07,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:32:07,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:07,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:32:07,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:32:07,038 INFO L87 Difference]: Start difference. First operand 1268 states and 1853 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:32:07,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:07,214 INFO L93 Difference]: Finished difference Result 1747 states and 2554 transitions. [2023-11-29 01:32:07,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:32:07,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 111 [2023-11-29 01:32:07,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:07,228 INFO L225 Difference]: With dead ends: 1747 [2023-11-29 01:32:07,228 INFO L226 Difference]: Without dead ends: 1734 [2023-11-29 01:32:07,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:32:07,230 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 497 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:07,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 1664 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:32:07,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2023-11-29 01:32:07,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1272. [2023-11-29 01:32:07,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1243 states have (on average 1.4682220434432824) internal successors, (1825), 1249 states have internal predecessors, (1825), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 01:32:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1857 transitions. [2023-11-29 01:32:07,295 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1857 transitions. Word has length 111 [2023-11-29 01:32:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:07,295 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1857 transitions. [2023-11-29 01:32:07,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-29 01:32:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1857 transitions. [2023-11-29 01:32:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 01:32:07,298 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:07,299 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:07,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:32:07,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:07,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:07,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:07,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1271610373, now seen corresponding path program 1 times [2023-11-29 01:32:07,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:07,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865400560] [2023-11-29 01:32:07,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:07,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:07,551 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:07,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248203849] [2023-11-29 01:32:07,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:07,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:07,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:07,554 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:07,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:32:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:07,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:32:07,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-29 01:32:08,102 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:08,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:08,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865400560] [2023-11-29 01:32:08,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:08,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248203849] [2023-11-29 01:32:08,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248203849] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:08,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:08,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:32:08,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537882854] [2023-11-29 01:32:08,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:08,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:32:08,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:08,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:32:08,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:32:08,106 INFO L87 Difference]: Start difference. First operand 1272 states and 1857 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:32:08,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:08,283 INFO L93 Difference]: Finished difference Result 2357 states and 3451 transitions. [2023-11-29 01:32:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:32:08,284 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 119 [2023-11-29 01:32:08,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:08,291 INFO L225 Difference]: With dead ends: 2357 [2023-11-29 01:32:08,291 INFO L226 Difference]: Without dead ends: 1272 [2023-11-29 01:32:08,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:32:08,294 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 125 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:08,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2592 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:32:08,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1272 states. [2023-11-29 01:32:08,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1272 to 1272. [2023-11-29 01:32:08,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 1243 states have (on average 1.4682220434432824) internal successors, (1825), 1249 states have internal predecessors, (1825), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:32:08,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1856 transitions. [2023-11-29 01:32:08,361 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1856 transitions. Word has length 119 [2023-11-29 01:32:08,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:08,361 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1856 transitions. [2023-11-29 01:32:08,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-29 01:32:08,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1856 transitions. [2023-11-29 01:32:08,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 01:32:08,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:08,363 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:08,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:32:08,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:08,564 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:08,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:08,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1194211838, now seen corresponding path program 1 times [2023-11-29 01:32:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:08,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643320858] [2023-11-29 01:32:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:08,615 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:08,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754810567] [2023-11-29 01:32:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:08,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:08,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:08,616 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:08,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:32:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:09,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-29 01:32:09,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 01:32:09,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:09,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:09,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643320858] [2023-11-29 01:32:09,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:09,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754810567] [2023-11-29 01:32:09,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754810567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:09,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:09,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 01:32:09,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198180877] [2023-11-29 01:32:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:09,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:32:09,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:09,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:32:09,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:32:09,078 INFO L87 Difference]: Start difference. First operand 1272 states and 1856 transitions. Second operand has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 01:32:09,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:09,255 INFO L93 Difference]: Finished difference Result 2361 states and 3458 transitions. [2023-11-29 01:32:09,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:32:09,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 124 [2023-11-29 01:32:09,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:09,265 INFO L225 Difference]: With dead ends: 2361 [2023-11-29 01:32:09,265 INFO L226 Difference]: Without dead ends: 1275 [2023-11-29 01:32:09,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:32:09,268 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 13 mSDsluCounter, 3170 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:09,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3703 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:32:09,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2023-11-29 01:32:09,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1275. [2023-11-29 01:32:09,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1245 states have (on average 1.468273092369478) internal successors, (1828), 1252 states have internal predecessors, (1828), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 01:32:09,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 1860 transitions. [2023-11-29 01:32:09,327 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 1860 transitions. Word has length 124 [2023-11-29 01:32:09,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:09,328 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 1860 transitions. [2023-11-29 01:32:09,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.857142857142858) internal successors, (104), 8 states have internal predecessors, (104), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-29 01:32:09,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 1860 transitions. [2023-11-29 01:32:09,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 01:32:09,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:09,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:09,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:32:09,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 01:32:09,532 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:09,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:09,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1875096370, now seen corresponding path program 1 times [2023-11-29 01:32:09,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:09,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970637251] [2023-11-29 01:32:09,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:09,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:09,596 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:09,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037338093] [2023-11-29 01:32:09,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:09,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:09,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:09,599 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:09,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:32:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:10,076 INFO L262 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 01:32:10,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:10,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:32:10,107 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2023-11-29 01:32:10,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:32:10,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 46 treesize of output 26 [2023-11-29 01:32:10,719 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-29 01:32:10,719 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:32:10,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:32:10,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970637251] [2023-11-29 01:32:10,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:32:10,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037338093] [2023-11-29 01:32:10,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037338093] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:32:10,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:32:10,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:32:10,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493791863] [2023-11-29 01:32:10,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:32:10,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:32:10,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:32:10,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:32:10,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:32:10,723 INFO L87 Difference]: Start difference. First operand 1275 states and 1860 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 01:32:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:32:12,482 INFO L93 Difference]: Finished difference Result 2897 states and 4238 transitions. [2023-11-29 01:32:12,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:32:12,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 126 [2023-11-29 01:32:12,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:32:12,490 INFO L225 Difference]: With dead ends: 2897 [2023-11-29 01:32:12,490 INFO L226 Difference]: Without dead ends: 1748 [2023-11-29 01:32:12,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:32:12,493 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 1031 mSDsluCounter, 2907 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 3447 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:32:12,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 3447 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 01:32:12,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2023-11-29 01:32:12,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1282. [2023-11-29 01:32:12,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1252 states have (on average 1.4656549520766773) internal successors, (1835), 1259 states have internal predecessors, (1835), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2023-11-29 01:32:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1867 transitions. [2023-11-29 01:32:12,545 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1867 transitions. Word has length 126 [2023-11-29 01:32:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:32:12,546 INFO L495 AbstractCegarLoop]: Abstraction has 1282 states and 1867 transitions. [2023-11-29 01:32:12,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-11-29 01:32:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1867 transitions. [2023-11-29 01:32:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 01:32:12,547 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:32:12,547 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:32:12,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 01:32:12,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:32:12,748 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-29 01:32:12,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:32:12,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1172506606, now seen corresponding path program 1 times [2023-11-29 01:32:12,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:32:12,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247231149] [2023-11-29 01:32:12,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:12,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:32:12,804 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:32:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [44340238] [2023-11-29 01:32:12,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:32:12,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:32:12,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:32:12,806 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:32:12,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43e00349-d5f8-4c57-a5e9-c34acb403ad9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:32:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:32:13,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 148 conjunts are in the unsatisfiable core [2023-11-29 01:32:13,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:32:13,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:32:13,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 01:32:13,700 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-29 01:32:13,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-29 01:32:13,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:32:13,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:32:13,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:32:14,007 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 01:32:14,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-29 01:32:14,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-29 01:32:14,095 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:14,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1772 treesize of output 1476 [2023-11-29 01:32:14,135 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3292 treesize of output 2679 [2023-11-29 01:32:14,184 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3438 treesize of output 2801 [2023-11-29 01:32:14,218 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:14,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1512 treesize of output 1282 [2023-11-29 01:32:14,262 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3907 treesize of output 3029 [2023-11-29 01:32:14,298 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2799 treesize of output 2304 [2023-11-29 01:32:14,329 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2023-11-29 01:32:14,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1553 treesize of output 1130 [2023-11-29 01:32:14,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 22 [2023-11-29 01:32:14,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 12 [2023-11-29 01:32:14,385 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2568 treesize of output 2069 [2023-11-29 01:32:14,420 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2849 treesize of output 2302 [2023-11-29 01:32:14,463 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,463 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3009 treesize of output 2412 [2023-11-29 01:32:14,499 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3290 treesize of output 2645 [2023-11-29 01:32:14,551 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:14,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1842 treesize of output 1 [2023-11-29 01:32:14,596 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4349 treesize of output 3361 [2023-11-29 01:32:14,633 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3111 treesize of output 2538 [2023-11-29 01:32:14,666 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:14,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1647 treesize of output 1375 [2023-11-29 01:32:14,689 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:14,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1773 treesize of output 1 [2023-11-29 01:32:14,721 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3221 treesize of output 2586 [2023-11-29 01:32:14,752 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2940 treesize of output 2353 [2023-11-29 01:32:14,791 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3009 treesize of output 2412 [2023-11-29 01:32:14,821 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3290 treesize of output 2645 [2023-11-29 01:32:14,848 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:14,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1842 treesize of output 1 [2023-11-29 01:32:14,882 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:14,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1566 treesize of output 1308 [2023-11-29 01:32:14,919 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4268 treesize of output 3294 [2023-11-29 01:32:14,961 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:14,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3030 treesize of output 2471 [2023-11-29 01:32:14,993 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:14,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2936 treesize of output 2351 [2023-11-29 01:32:15,028 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3217 treesize of output 2584 [2023-11-29 01:32:15,085 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1769 treesize of output 1 [2023-11-29 01:32:15,109 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1700 treesize of output 1 [2023-11-29 01:32:15,142 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3353 treesize of output 2684 [2023-11-29 01:32:15,180 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2867 treesize of output 2292 [2023-11-29 01:32:15,218 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1480 treesize of output 1 [2023-11-29 01:32:15,252 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,253 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2776 treesize of output 2241 [2023-11-29 01:32:15,284 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2495 treesize of output 2008 [2023-11-29 01:32:15,329 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:15,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 2718 treesize of output 2237 [2023-11-29 01:32:15,366 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:15,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3826 treesize of output 2962 [2023-11-29 01:32:15,392 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:15,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1431 treesize of output 1215 [2023-11-29 01:32:15,428 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,429 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2936 treesize of output 2351 [2023-11-29 01:32:15,464 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3217 treesize of output 2584 [2023-11-29 01:32:15,485 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1769 treesize of output 1 [2023-11-29 01:32:15,523 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:15,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3357 treesize of output 2734 [2023-11-29 01:32:15,551 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:15,551 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1691 treesize of output 1409 [2023-11-29 01:32:15,583 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:15,584 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3211 treesize of output 2612 [2023-11-29 01:32:15,619 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 2062 treesize of output 1 [2023-11-29 01:32:15,650 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3381 treesize of output 2696 [2023-11-29 01:32:15,685 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3662 treesize of output 2929 [2023-11-29 01:32:15,748 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1773 treesize of output 1 [2023-11-29 01:32:15,775 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2940 treesize of output 2353 [2023-11-29 01:32:15,801 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3221 treesize of output 2586 [2023-11-29 01:32:15,832 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:15,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1647 treesize of output 1375 [2023-11-29 01:32:15,871 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:15,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3111 treesize of output 2538 [2023-11-29 01:32:15,908 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:15,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4349 treesize of output 3361 [2023-11-29 01:32:15,933 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:15,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 2062 treesize of output 1 [2023-11-29 01:32:15,958 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3381 treesize of output 2696 [2023-11-29 01:32:15,993 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:15,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3662 treesize of output 2929 [2023-11-29 01:32:16,016 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:16,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1993 treesize of output 1 [2023-11-29 01:32:16,043 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:16,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3312 treesize of output 2637 [2023-11-29 01:32:16,071 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:16,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3798 treesize of output 3029 [2023-11-29 01:32:16,105 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:16,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1782 treesize of output 1468 [2023-11-29 01:32:16,140 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4791 treesize of output 3693 [2023-11-29 01:32:16,173 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3423 treesize of output 2772 [2023-11-29 01:32:16,215 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3750 treesize of output 3035 [2023-11-29 01:32:16,244 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:16,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1907 treesize of output 1569 [2023-11-29 01:32:16,277 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3604 treesize of output 2913 [2023-11-29 01:32:16,340 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:16,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 2235 treesize of output 1645 [2023-11-29 01:32:16,373 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 01:32:16,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2617 treesize of output 2115 [2023-11-29 01:32:16,407 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:16,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3839 treesize of output 3066 [2023-11-29 01:32:16,452 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,453 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3764 treesize of output 3043 [2023-11-29 01:32:16,484 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:16,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1921 treesize of output 1577 [2023-11-29 01:32:16,524 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4647 treesize of output 3571 [2023-11-29 01:32:16,553 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:16,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 2166 treesize of output 1586 [2023-11-29 01:32:16,582 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 01:32:16,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2548 treesize of output 2056 [2023-11-29 01:32:16,614 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:16,615 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3770 treesize of output 3007 [2023-11-29 01:32:16,645 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:16,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 2235 treesize of output 1645 [2023-11-29 01:32:16,674 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 01:32:16,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2617 treesize of output 2115 [2023-11-29 01:32:16,707 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:16,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3839 treesize of output 3066 [2023-11-29 01:32:16,786 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:32:16,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 3398 treesize of output 2723 [2023-11-29 01:32:16,812 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:32:16,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1946 treesize of output 1422 [2023-11-29 01:32:16,841 INFO L349 Elim1Store]: treesize reduction 219, result has 0.5 percent of original size [2023-11-29 01:32:16,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 8 case distinctions, treesize of input 2306 treesize of output 1870 [2023-11-29 01:32:16,884 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3452 treesize of output 2809 [2023-11-29 01:32:16,916 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:16,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1786 treesize of output 1484 [2023-11-29 01:32:16,953 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:16,954 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4205 treesize of output 3239 [2023-11-29 01:32:16,993 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:32:16,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 1802 treesize of output 1486 [2023-11-29 01:32:17,030 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:17,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4227 treesize of output 3247 [2023-11-29 01:32:17,079 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:32:17,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3474 treesize of output 2817 [2023-11-29 01:32:17,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:32:21,191 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-11-29 01:32:21,191 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-11-29 01:32:21,287 INFO L349 Elim1Store]: treesize reduction 167, result has 0.6 percent of original size [2023-11-29 01:32:21,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 504 treesize of output 358 [2023-11-29 01:32:21,303 INFO L349 Elim1Store]: treesize reduction 37, result has 2.6 percent of original size [2023-11-29 01:32:21,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 181 [2023-11-29 01:32:21,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:32:21,467 INFO L349 Elim1Store]: treesize reduction 507, result has 11.8 percent of original size [2023-11-29 01:32:21,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 690 treesize of output 500 [2023-11-29 01:32:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:32:21,513 INFO L349 Elim1Store]: treesize reduction 43, result has 28.3 percent of original size [2023-11-29 01:32:21,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 352 treesize of output 301 [2023-11-29 01:32:24,448 INFO L349 Elim1Store]: treesize reduction 2622, result has 9.1 percent of original size [2023-11-29 01:32:24,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 21 select indices, 21 select index equivalence classes, 3 disjoint index pairs (out of 210 index pairs), introduced 32 new quantified variables, introduced 231 case distinctions, treesize of input 7279 treesize of output 4463 [2023-11-29 01:32:25,371 INFO L349 Elim1Store]: treesize reduction 794, result has 13.8 percent of original size [2023-11-29 01:32:25,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 1 disjoint index pairs (out of 45 index pairs), introduced 13 new quantified variables, introduced 55 case distinctions, treesize of input 3786 treesize of output 3535 [2023-11-29 01:32:25,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:32:25,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 3557 treesize of output 3495 [2023-11-29 01:32:25,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:32:25,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 3477 treesize of output 3339 [2023-11-29 01:32:25,798 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 3202 treesize of output 3074 [2023-11-29 01:32:25,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 3074 treesize of output 2954 [2023-11-29 01:32:25,955 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2954 treesize of output 2894 [2023-11-29 01:32:26,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 2894 treesize of output 2830 [2023-11-29 01:32:48,397 WARN L293 SmtUtils]: Spent 14.77s on a formula simplification. DAG size of input: 2822 DAG size of output: 399 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-29 01:32:48,397 INFO L349 Elim1Store]: treesize reduction 8686, result has 7.7 percent of original size [2023-11-29 01:32:48,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 41 select indices, 41 select index equivalence classes, 3 disjoint index pairs (out of 820 index pairs), introduced 45 new quantified variables, introduced 860 case distinctions, treesize of input 1389 treesize of output 1264 [2023-11-29 01:32:48,665 INFO L349 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2023-11-29 01:32:48,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 14 case distinctions, treesize of input 1164 treesize of output 898 [2023-11-29 01:35:20,981 WARN L293 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 590 DAG size of output: 595 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:36:27,556 WARN L293 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 587 DAG size of output: 592 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:39:17,740 WARN L293 SmtUtils]: Spent 49.23s on a formula simplification. DAG size of input: 801 DAG size of output: 932 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:39:37,489 WARN L293 SmtUtils]: Spent 9.81s on a formula simplification that was a NOOP. DAG size: 794 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:39:48,320 WARN L293 SmtUtils]: Spent 10.82s on a formula simplification that was a NOOP. DAG size: 1226 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:41:31,166 WARN L293 SmtUtils]: Spent 9.79s on a formula simplification that was a NOOP. DAG size: 794 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:41:50,758 WARN L293 SmtUtils]: Spent 19.59s on a formula simplification that was a NOOP. DAG size: 797 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:42:11,584 WARN L293 SmtUtils]: Spent 10.97s on a formula simplification that was a NOOP. DAG size: 1224 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:44:05,388 WARN L293 SmtUtils]: Spent 11.32s on a formula simplification that was a NOOP. DAG size: 785 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)