./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/bist_cell.cil.c --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_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/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_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/bist_cell.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/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_efba9df9-87b9-4290-b9e2-f362501ea84a/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 de455e90ef2ae1a82fb7a87bbcdb07831c7ef68e47976e1b2868a3e9de47a0a2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:23:07,284 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:23:07,348 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-28 20:23:07,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:23:07,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:23:07,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:23:07,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:23:07,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:23:07,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:23:07,374 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:23:07,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:23:07,376 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:23:07,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:23:07,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:23:07,377 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:23:07,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:23:07,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:23:07,379 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:23:07,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:23:07,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:23:07,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:23:07,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:23:07,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:23:07,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:23:07,383 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:23:07,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:23:07,383 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:23:07,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:23:07,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:23:07,385 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:23:07,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:23:07,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:23:07,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:23:07,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:23:07,386 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:23:07,387 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:23:07,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:23:07,393 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:23:07,394 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:23:07,394 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:23:07,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:23:07,394 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:23:07,395 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_efba9df9-87b9-4290-b9e2-f362501ea84a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de455e90ef2ae1a82fb7a87bbcdb07831c7ef68e47976e1b2868a3e9de47a0a2 [2023-11-28 20:23:07,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:23:07,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:23:07,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:23:07,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:23:07,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:23:07,684 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/systemc/bist_cell.cil.c [2023-11-28 20:23:10,463 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:23:10,649 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:23:10,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/sv-benchmarks/c/systemc/bist_cell.cil.c [2023-11-28 20:23:10,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/data/015ef73e6/c226ff1a40444761a44dfac59f79c603/FLAG8c45cce62 [2023-11-28 20:23:10,678 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/data/015ef73e6/c226ff1a40444761a44dfac59f79c603 [2023-11-28 20:23:10,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:23:10,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:23:10,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:23:10,684 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:23:10,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:23:10,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:10,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34fa8049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10, skipping insertion in model container [2023-11-28 20:23:10,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:10,727 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:23:10,865 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_efba9df9-87b9-4290-b9e2-f362501ea84a/sv-benchmarks/c/systemc/bist_cell.cil.c[639,652] [2023-11-28 20:23:10,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:23:10,929 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:23:10,942 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_efba9df9-87b9-4290-b9e2-f362501ea84a/sv-benchmarks/c/systemc/bist_cell.cil.c[639,652] [2023-11-28 20:23:10,966 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:23:10,983 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:23:10,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10 WrapperNode [2023-11-28 20:23:10,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:23:10,985 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:23:10,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:23:10,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:23:10,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,026 INFO L138 Inliner]: procedures = 30, calls = 30, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 229 [2023-11-28 20:23:11,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:23:11,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:23:11,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:23:11,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:23:11,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,055 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 20:23:11,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:23:11,074 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:23:11,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:23:11,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:23:11,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (1/1) ... [2023-11-28 20:23:11,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:23:11,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:11,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:23:11,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:23:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:23:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-28 20:23:11,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-28 20:23:11,146 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-28 20:23:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-28 20:23:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-28 20:23:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-28 20:23:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-28 20:23:11,147 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-28 20:23:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:23:11,147 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-28 20:23:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-28 20:23:11,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:23:11,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:23:11,230 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:23:11,232 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:23:11,508 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:23:11,556 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:23:11,556 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 20:23:11,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:11 BoogieIcfgContainer [2023-11-28 20:23:11,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:23:11,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:23:11,560 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:23:11,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:23:11,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:23:10" (1/3) ... [2023-11-28 20:23:11,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee5ce23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:11, skipping insertion in model container [2023-11-28 20:23:11,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:23:10" (2/3) ... [2023-11-28 20:23:11,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee5ce23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:23:11, skipping insertion in model container [2023-11-28 20:23:11,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:11" (3/3) ... [2023-11-28 20:23:11,569 INFO L112 eAbstractionObserver]: Analyzing ICFG bist_cell.cil.c [2023-11-28 20:23:11,593 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:23:11,593 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:23:11,666 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:23:11,673 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;@792a2b84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:23:11,673 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:23:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 71 states have (on average 1.676056338028169) internal successors, (119), 73 states have internal predecessors, (119), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-28 20:23:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-28 20:23:11,685 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:11,686 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] [2023-11-28 20:23:11,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:11,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:11,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1929751186, now seen corresponding path program 1 times [2023-11-28 20:23:11,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:11,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511369193] [2023-11-28 20:23:11,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:12,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:12,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-28 20:23:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:12,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:12,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-28 20:23:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:12,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:23:12,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:12,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511369193] [2023-11-28 20:23:12,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511369193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:12,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:12,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:23:12,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107998689] [2023-11-28 20:23:12,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:12,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:23:12,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:12,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:23:12,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:23:12,174 INFO L87 Difference]: Start difference. First operand has 88 states, 71 states have (on average 1.676056338028169) internal successors, (119), 73 states have internal predecessors, (119), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:23:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:13,174 INFO L93 Difference]: Finished difference Result 246 states and 393 transitions. [2023-11-28 20:23:13,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 20:23:13,177 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-11-28 20:23:13,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:13,188 INFO L225 Difference]: With dead ends: 246 [2023-11-28 20:23:13,188 INFO L226 Difference]: Without dead ends: 158 [2023-11-28 20:23:13,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:23:13,196 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 303 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:13,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 295 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 20:23:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-28 20:23:13,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 101. [2023-11-28 20:23:13,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.5952380952380953) internal successors, (134), 85 states have internal predecessors, (134), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-28 20:23:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 155 transitions. [2023-11-28 20:23:13,253 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 155 transitions. Word has length 39 [2023-11-28 20:23:13,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:13,254 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 155 transitions. [2023-11-28 20:23:13,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-28 20:23:13,254 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 155 transitions. [2023-11-28 20:23:13,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-28 20:23:13,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:13,259 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:13,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:23:13,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:13,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:13,261 INFO L85 PathProgramCache]: Analyzing trace with hash -609134686, now seen corresponding path program 1 times [2023-11-28 20:23:13,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:13,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352313849] [2023-11-28 20:23:13,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:13,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:23:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 20:23:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 20:23:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:13,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:23:13,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:23:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:13,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:13,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352313849] [2023-11-28 20:23:13,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352313849] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:13,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752536839] [2023-11-28 20:23:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:13,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:13,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:13,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:13,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 20:23:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:13,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:23:13,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:23:13,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:13,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752536839] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:13,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:13,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2023-11-28 20:23:13,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51231081] [2023-11-28 20:23:13,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:13,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:13,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:13,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:13,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:13,698 INFO L87 Difference]: Start difference. First operand 101 states and 155 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:13,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:13,725 INFO L93 Difference]: Finished difference Result 194 states and 298 transitions. [2023-11-28 20:23:13,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:13,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-11-28 20:23:13,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:13,728 INFO L225 Difference]: With dead ends: 194 [2023-11-28 20:23:13,728 INFO L226 Difference]: Without dead ends: 101 [2023-11-28 20:23:13,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:13,731 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 119 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:13,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 119 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:13,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-11-28 20:23:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-11-28 20:23:13,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.5833333333333333) internal successors, (133), 85 states have internal predecessors, (133), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2023-11-28 20:23:13,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 154 transitions. [2023-11-28 20:23:13,748 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 154 transitions. Word has length 92 [2023-11-28 20:23:13,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:13,749 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 154 transitions. [2023-11-28 20:23:13,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:13,749 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 154 transitions. [2023-11-28 20:23:13,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-28 20:23:13,752 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:13,752 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:13,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:13,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:13,955 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:13,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1751637152, now seen corresponding path program 1 times [2023-11-28 20:23:13,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:13,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939308375] [2023-11-28 20:23:13,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:13,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:23:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 20:23:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 20:23:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:23:14,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:23:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:14,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:14,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939308375] [2023-11-28 20:23:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939308375] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:14,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489163873] [2023-11-28 20:23:14,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:14,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:14,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:14,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:14,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 20:23:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:14,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-28 20:23:14,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:14,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489163873] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:14,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:14,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:14,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982056375] [2023-11-28 20:23:14,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:14,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:14,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:14,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:14,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:14,406 INFO L87 Difference]: Start difference. First operand 101 states and 154 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:14,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:14,631 INFO L93 Difference]: Finished difference Result 302 states and 471 transitions. [2023-11-28 20:23:14,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:14,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-11-28 20:23:14,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:14,634 INFO L225 Difference]: With dead ends: 302 [2023-11-28 20:23:14,634 INFO L226 Difference]: Without dead ends: 211 [2023-11-28 20:23:14,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:14,637 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 218 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:14,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 322 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-28 20:23:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2023-11-28 20:23:14,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 165 states have (on average 1.5757575757575757) internal successors, (260), 168 states have internal predecessors, (260), 19 states have call successors, (19), 11 states have call predecessors, (19), 13 states have return successors, (27), 20 states have call predecessors, (27), 19 states have call successors, (27) [2023-11-28 20:23:14,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 306 transitions. [2023-11-28 20:23:14,668 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 306 transitions. Word has length 92 [2023-11-28 20:23:14,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:14,669 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 306 transitions. [2023-11-28 20:23:14,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 306 transitions. [2023-11-28 20:23:14,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-28 20:23:14,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:14,673 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:14,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 20:23:14,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:14,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:14,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1617302816, now seen corresponding path program 1 times [2023-11-28 20:23:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744212349] [2023-11-28 20:23:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:14,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:23:15,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 20:23:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 20:23:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:23:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:23:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:15,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:15,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744212349] [2023-11-28 20:23:15,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744212349] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:15,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594748129] [2023-11-28 20:23:15,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:15,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:15,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:15,075 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:15,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 20:23:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:15,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:15,289 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-28 20:23:15,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:15,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594748129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:15,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:15,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:15,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306522538] [2023-11-28 20:23:15,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:15,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:15,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:15,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:15,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:15,292 INFO L87 Difference]: Start difference. First operand 198 states and 306 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:15,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:15,527 INFO L93 Difference]: Finished difference Result 593 states and 936 transitions. [2023-11-28 20:23:15,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:15,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-11-28 20:23:15,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:15,531 INFO L225 Difference]: With dead ends: 593 [2023-11-28 20:23:15,532 INFO L226 Difference]: Without dead ends: 409 [2023-11-28 20:23:15,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:15,535 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 215 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:15,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 314 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2023-11-28 20:23:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 395. [2023-11-28 20:23:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 328 states have (on average 1.5609756097560976) internal successors, (512), 337 states have internal predecessors, (512), 37 states have call successors, (37), 21 states have call predecessors, (37), 29 states have return successors, (71), 40 states have call predecessors, (71), 37 states have call successors, (71) [2023-11-28 20:23:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 620 transitions. [2023-11-28 20:23:15,585 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 620 transitions. Word has length 92 [2023-11-28 20:23:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:15,586 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 620 transitions. [2023-11-28 20:23:15,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 620 transitions. [2023-11-28 20:23:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-28 20:23:15,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:15,590 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:15,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 20:23:15,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:15,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:15,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1468221796, now seen corresponding path program 1 times [2023-11-28 20:23:15,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:15,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794831944] [2023-11-28 20:23:15,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:15,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:15,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-28 20:23:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-28 20:23:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 20:23:15,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:23:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:23:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:15,992 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:15,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:15,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794831944] [2023-11-28 20:23:15,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794831944] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:15,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697842944] [2023-11-28 20:23:15,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:15,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:15,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:15,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:15,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 20:23:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:16,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:16,198 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-28 20:23:16,198 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:16,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697842944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:16,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:16,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:16,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136774290] [2023-11-28 20:23:16,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:16,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:16,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:16,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:16,201 INFO L87 Difference]: Start difference. First operand 395 states and 620 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:16,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:16,471 INFO L93 Difference]: Finished difference Result 1308 states and 2136 transitions. [2023-11-28 20:23:16,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:16,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2023-11-28 20:23:16,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:16,480 INFO L225 Difference]: With dead ends: 1308 [2023-11-28 20:23:16,480 INFO L226 Difference]: Without dead ends: 935 [2023-11-28 20:23:16,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:16,483 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 233 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:16,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 355 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2023-11-28 20:23:16,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 863. [2023-11-28 20:23:16,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 722 states have (on average 1.5401662049861495) internal successors, (1112), 749 states have internal predecessors, (1112), 73 states have call successors, (73), 41 states have call predecessors, (73), 67 states have return successors, (201), 80 states have call predecessors, (201), 73 states have call successors, (201) [2023-11-28 20:23:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1386 transitions. [2023-11-28 20:23:16,550 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1386 transitions. Word has length 92 [2023-11-28 20:23:16,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:16,551 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1386 transitions. [2023-11-28 20:23:16,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1386 transitions. [2023-11-28 20:23:16,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-28 20:23:16,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:16,556 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:16,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:16,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:16,759 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:16,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2131635018, now seen corresponding path program 1 times [2023-11-28 20:23:16,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:16,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529374487] [2023-11-28 20:23:16,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:16,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:16,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:16,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 20:23:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 20:23:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:23:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:16,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:23:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:16,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:16,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529374487] [2023-11-28 20:23:16,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529374487] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:16,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172922054] [2023-11-28 20:23:16,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:16,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:16,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:16,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:16,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 20:23:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:17,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:17,113 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 20:23:17,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:17,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172922054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:17,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:17,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:17,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535319821] [2023-11-28 20:23:17,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:17,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:17,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:17,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:17,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:17,115 INFO L87 Difference]: Start difference. First operand 863 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:17,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:17,400 INFO L93 Difference]: Finished difference Result 2816 states and 4760 transitions. [2023-11-28 20:23:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:17,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2023-11-28 20:23:17,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:17,416 INFO L225 Difference]: With dead ends: 2816 [2023-11-28 20:23:17,416 INFO L226 Difference]: Without dead ends: 1993 [2023-11-28 20:23:17,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:17,422 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 223 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:17,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 332 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:17,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2023-11-28 20:23:17,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1885. [2023-11-28 20:23:17,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1578 states have (on average 1.5158428390367553) internal successors, (2392), 1659 states have internal predecessors, (2392), 145 states have call successors, (145), 81 states have call predecessors, (145), 161 states have return successors, (611), 160 states have call predecessors, (611), 145 states have call successors, (611) [2023-11-28 20:23:17,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 3148 transitions. [2023-11-28 20:23:17,606 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 3148 transitions. Word has length 94 [2023-11-28 20:23:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:17,606 INFO L495 AbstractCegarLoop]: Abstraction has 1885 states and 3148 transitions. [2023-11-28 20:23:17,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 3148 transitions. [2023-11-28 20:23:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-28 20:23:17,620 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:17,620 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:17,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 20:23:17,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:17,822 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:17,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:17,822 INFO L85 PathProgramCache]: Analyzing trace with hash -86155466, now seen corresponding path program 1 times [2023-11-28 20:23:17,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:17,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410692529] [2023-11-28 20:23:17,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:17,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 20:23:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 20:23:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:23:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:17,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:23:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:17,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410692529] [2023-11-28 20:23:17,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410692529] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:17,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530944780] [2023-11-28 20:23:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:17,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:17,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:17,959 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:17,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 20:23:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:23:18,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:18,110 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:23:18,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:18,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530944780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:18,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:18,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-28 20:23:18,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774462515] [2023-11-28 20:23:18,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:18,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:23:18,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:18,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:23:18,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:18,113 INFO L87 Difference]: Start difference. First operand 1885 states and 3148 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:18,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:18,285 INFO L93 Difference]: Finished difference Result 4002 states and 6653 transitions. [2023-11-28 20:23:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:23:18,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2023-11-28 20:23:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:18,301 INFO L225 Difference]: With dead ends: 4002 [2023-11-28 20:23:18,301 INFO L226 Difference]: Without dead ends: 2221 [2023-11-28 20:23:18,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:23:18,308 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 28 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:18,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 597 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:18,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2023-11-28 20:23:18,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 1949. [2023-11-28 20:23:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1626 states have (on average 1.5006150061500616) internal successors, (2440), 1707 states have internal predecessors, (2440), 145 states have call successors, (145), 81 states have call predecessors, (145), 177 states have return successors, (643), 176 states have call predecessors, (643), 145 states have call successors, (643) [2023-11-28 20:23:18,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 3228 transitions. [2023-11-28 20:23:18,453 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 3228 transitions. Word has length 94 [2023-11-28 20:23:18,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:18,453 INFO L495 AbstractCegarLoop]: Abstraction has 1949 states and 3228 transitions. [2023-11-28 20:23:18,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:18,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 3228 transitions. [2023-11-28 20:23:18,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-28 20:23:18,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:18,466 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:18,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:18,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-28 20:23:18,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:18,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:18,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1452184564, now seen corresponding path program 1 times [2023-11-28 20:23:18,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:18,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553581780] [2023-11-28 20:23:18,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:18,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 20:23:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 20:23:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:23:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:23:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,803 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:18,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:18,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553581780] [2023-11-28 20:23:18,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553581780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:18,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334497864] [2023-11-28 20:23:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:18,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:18,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:18,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:18,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 20:23:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:18,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:18,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 20:23:18,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:18,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334497864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:18,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:18,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-28 20:23:18,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702263880] [2023-11-28 20:23:18,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:18,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:18,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:18,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:18,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:18,961 INFO L87 Difference]: Start difference. First operand 1949 states and 3228 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:19,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:19,137 INFO L93 Difference]: Finished difference Result 4258 states and 7036 transitions. [2023-11-28 20:23:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:19,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2023-11-28 20:23:19,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:19,156 INFO L225 Difference]: With dead ends: 4258 [2023-11-28 20:23:19,156 INFO L226 Difference]: Without dead ends: 2413 [2023-11-28 20:23:19,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:19,163 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:19,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 228 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2413 states. [2023-11-28 20:23:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2413 to 2233. [2023-11-28 20:23:19,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2233 states, 1814 states have (on average 1.456449834619625) internal successors, (2642), 1895 states have internal predecessors, (2642), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2023-11-28 20:23:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2233 states to 2233 states and 3639 transitions. [2023-11-28 20:23:19,366 INFO L78 Accepts]: Start accepts. Automaton has 2233 states and 3639 transitions. Word has length 94 [2023-11-28 20:23:19,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:19,367 INFO L495 AbstractCegarLoop]: Abstraction has 2233 states and 3639 transitions. [2023-11-28 20:23:19,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:19,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2233 states and 3639 transitions. [2023-11-28 20:23:19,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-28 20:23:19,380 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:19,380 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:19,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 20:23:19,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-28 20:23:19,581 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:19,581 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:19,581 INFO L85 PathProgramCache]: Analyzing trace with hash 236030838, now seen corresponding path program 1 times [2023-11-28 20:23:19,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:19,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163074200] [2023-11-28 20:23:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:19,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-28 20:23:19,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-28 20:23:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-28 20:23:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:23:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:19,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163074200] [2023-11-28 20:23:19,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163074200] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:19,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279001020] [2023-11-28 20:23:19,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:19,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:19,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:19,713 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:19,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 20:23:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:19,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:23:19,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-28 20:23:19,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:19,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279001020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:19,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:19,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-28 20:23:19,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661716868] [2023-11-28 20:23:19,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:19,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:23:19,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:19,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:23:19,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:19,842 INFO L87 Difference]: Start difference. First operand 2233 states and 3639 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:19,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:19,986 INFO L93 Difference]: Finished difference Result 4334 states and 7049 transitions. [2023-11-28 20:23:19,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:23:19,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2023-11-28 20:23:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:20,004 INFO L225 Difference]: With dead ends: 4334 [2023-11-28 20:23:20,004 INFO L226 Difference]: Without dead ends: 2297 [2023-11-28 20:23:20,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:20,012 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 2 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:20,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 349 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:20,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2023-11-28 20:23:20,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2265. [2023-11-28 20:23:20,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 1846 states have (on average 1.448537378114843) internal successors, (2674), 1927 states have internal predecessors, (2674), 209 states have call successors, (209), 113 states have call predecessors, (209), 209 states have return successors, (788), 256 states have call predecessors, (788), 209 states have call successors, (788) [2023-11-28 20:23:20,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 3671 transitions. [2023-11-28 20:23:20,191 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 3671 transitions. Word has length 94 [2023-11-28 20:23:20,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:20,192 INFO L495 AbstractCegarLoop]: Abstraction has 2265 states and 3671 transitions. [2023-11-28 20:23:20,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:20,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 3671 transitions. [2023-11-28 20:23:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-28 20:23:20,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:20,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:20,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 20:23:20,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-28 20:23:20,413 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:20,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:20,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1971241955, now seen corresponding path program 1 times [2023-11-28 20:23:20,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:20,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005143052] [2023-11-28 20:23:20,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:20,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:20,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 20:23:20,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-28 20:23:20,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 20:23:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 20:23:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 20:23:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:23:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:20,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:20,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005143052] [2023-11-28 20:23:20,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005143052] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:20,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192160545] [2023-11-28 20:23:20,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:20,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:20,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:20,565 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:20,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 20:23:20,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:20,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:20,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 20:23:20,697 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:20,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192160545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:20,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:20,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-28 20:23:20,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092545765] [2023-11-28 20:23:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:20,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:20,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:20,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:20,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:20,699 INFO L87 Difference]: Start difference. First operand 2265 states and 3671 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:20,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:20,851 INFO L93 Difference]: Finished difference Result 4634 states and 7890 transitions. [2023-11-28 20:23:20,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:20,851 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2023-11-28 20:23:20,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:20,872 INFO L225 Difference]: With dead ends: 4634 [2023-11-28 20:23:20,872 INFO L226 Difference]: Without dead ends: 2549 [2023-11-28 20:23:20,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:20,882 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 18 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:20,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 231 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2549 states. [2023-11-28 20:23:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2549 to 2549. [2023-11-28 20:23:21,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2034 states have (on average 1.4267453294001966) internal successors, (2902), 2115 states have internal predecessors, (2902), 273 states have call successors, (273), 145 states have call predecessors, (273), 241 states have return successors, (1046), 320 states have call predecessors, (1046), 273 states have call successors, (1046) [2023-11-28 20:23:21,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 4221 transitions. [2023-11-28 20:23:21,158 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 4221 transitions. Word has length 96 [2023-11-28 20:23:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:21,159 INFO L495 AbstractCegarLoop]: Abstraction has 2549 states and 4221 transitions. [2023-11-28 20:23:21,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 4221 transitions. [2023-11-28 20:23:21,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-28 20:23:21,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:21,177 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:21,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 20:23:21,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-28 20:23:21,378 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:21,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:21,378 INFO L85 PathProgramCache]: Analyzing trace with hash 1181222875, now seen corresponding path program 1 times [2023-11-28 20:23:21,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:21,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744800329] [2023-11-28 20:23:21,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:21,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:21,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:21,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 20:23:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-28 20:23:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 20:23:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 20:23:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 20:23:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:23:21,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:21,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:21,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:21,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744800329] [2023-11-28 20:23:21,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744800329] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:21,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1592030682] [2023-11-28 20:23:21,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:21,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:21,521 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:21,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 20:23:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:21,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:21,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:21,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:21,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1592030682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:21,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:21,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-28 20:23:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576095468] [2023-11-28 20:23:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:21,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:21,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:21,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:21,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:21,715 INFO L87 Difference]: Start difference. First operand 2549 states and 4221 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:22,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:22,140 INFO L93 Difference]: Finished difference Result 7898 states and 13749 transitions. [2023-11-28 20:23:22,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:23:22,141 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2023-11-28 20:23:22,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:22,188 INFO L225 Difference]: With dead ends: 7898 [2023-11-28 20:23:22,189 INFO L226 Difference]: Without dead ends: 5577 [2023-11-28 20:23:22,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:22,202 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 183 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:22,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 576 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:22,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2023-11-28 20:23:22,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 5493. [2023-11-28 20:23:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 4456 states have (on average 1.4254937163375225) internal successors, (6352), 4723 states have internal predecessors, (6352), 481 states have call successors, (481), 257 states have call predecessors, (481), 555 states have return successors, (2556), 576 states have call predecessors, (2556), 481 states have call successors, (2556) [2023-11-28 20:23:22,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 9389 transitions. [2023-11-28 20:23:22,638 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 9389 transitions. Word has length 96 [2023-11-28 20:23:22,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:22,638 INFO L495 AbstractCegarLoop]: Abstraction has 5493 states and 9389 transitions. [2023-11-28 20:23:22,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:22,639 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 9389 transitions. [2023-11-28 20:23:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-28 20:23:22,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:22,671 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:22,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 20:23:22,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-28 20:23:22,875 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:22,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:22,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1860495129, now seen corresponding path program 1 times [2023-11-28 20:23:22,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:22,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493441368] [2023-11-28 20:23:22,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:22,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:22,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:22,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-28 20:23:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:22,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-28 20:23:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-28 20:23:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-28 20:23:23,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-28 20:23:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-28 20:23:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-28 20:23:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-28 20:23:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-28 20:23:23,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:23,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493441368] [2023-11-28 20:23:23,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493441368] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:23,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452900517] [2023-11-28 20:23:23,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:23,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:23,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:23,020 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:23,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 20:23:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:23,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:23:23,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:23,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:23,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452900517] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:23,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:23,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:23,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094094010] [2023-11-28 20:23:23,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:23,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:23,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:23,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:23,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:23,174 INFO L87 Difference]: Start difference. First operand 5493 states and 9389 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:23,657 INFO L93 Difference]: Finished difference Result 11994 states and 20213 transitions. [2023-11-28 20:23:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:23,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2023-11-28 20:23:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:23,709 INFO L225 Difference]: With dead ends: 11994 [2023-11-28 20:23:23,709 INFO L226 Difference]: Without dead ends: 6727 [2023-11-28 20:23:23,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:23,732 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 61 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:23,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 304 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:23,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6727 states. [2023-11-28 20:23:24,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6727 to 5493. [2023-11-28 20:23:24,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5493 states, 4456 states have (on average 1.4252692998204668) internal successors, (6351), 4723 states have internal predecessors, (6351), 481 states have call successors, (481), 257 states have call predecessors, (481), 555 states have return successors, (2556), 576 states have call predecessors, (2556), 481 states have call successors, (2556) [2023-11-28 20:23:24,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5493 states to 5493 states and 9388 transitions. [2023-11-28 20:23:24,263 INFO L78 Accepts]: Start accepts. Automaton has 5493 states and 9388 transitions. Word has length 96 [2023-11-28 20:23:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:24,264 INFO L495 AbstractCegarLoop]: Abstraction has 5493 states and 9388 transitions. [2023-11-28 20:23:24,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:24,264 INFO L276 IsEmpty]: Start isEmpty. Operand 5493 states and 9388 transitions. [2023-11-28 20:23:24,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-28 20:23:24,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:24,296 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:24,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:24,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-28 20:23:24,496 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:24,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash -315091207, now seen corresponding path program 1 times [2023-11-28 20:23:24,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:24,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335359907] [2023-11-28 20:23:24,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:24,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-28 20:23:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:23:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-28 20:23:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 20:23:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 20:23:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 20:23:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 20:23:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 20:23:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 20:23:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:24,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:24,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335359907] [2023-11-28 20:23:24,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335359907] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:24,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699086944] [2023-11-28 20:23:24,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:24,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:24,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:24,681 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:24,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 20:23:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:24,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:24,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:24,820 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 20:23:24,820 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:24,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699086944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:24,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:24,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-28 20:23:24,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210596980] [2023-11-28 20:23:24,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:24,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:24,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:24,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:24,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:24,823 INFO L87 Difference]: Start difference. First operand 5493 states and 9388 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:25,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:25,053 INFO L93 Difference]: Finished difference Result 10940 states and 19073 transitions. [2023-11-28 20:23:25,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:25,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2023-11-28 20:23:25,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:25,117 INFO L225 Difference]: With dead ends: 10940 [2023-11-28 20:23:25,117 INFO L226 Difference]: Without dead ends: 5853 [2023-11-28 20:23:25,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:25,137 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 15 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:25,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 236 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:25,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5853 states. [2023-11-28 20:23:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5853 to 5853. [2023-11-28 20:23:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 4680 states have (on average 1.416025641025641) internal successors, (6627), 4939 states have internal predecessors, (6627), 577 states have call successors, (577), 305 states have call predecessors, (577), 595 states have return successors, (2916), 672 states have call predecessors, (2916), 577 states have call successors, (2916) [2023-11-28 20:23:25,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 10120 transitions. [2023-11-28 20:23:25,605 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 10120 transitions. Word has length 97 [2023-11-28 20:23:25,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:25,605 INFO L495 AbstractCegarLoop]: Abstraction has 5853 states and 10120 transitions. [2023-11-28 20:23:25,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:25,605 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 10120 transitions. [2023-11-28 20:23:25,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-28 20:23:25,632 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:25,632 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:25,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 20:23:25,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-28 20:23:25,833 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:25,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:25,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1457593673, now seen corresponding path program 1 times [2023-11-28 20:23:25,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:25,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079321504] [2023-11-28 20:23:25,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:25,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:25,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-28 20:23:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:25,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-28 20:23:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-28 20:23:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-28 20:23:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-28 20:23:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 20:23:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 20:23:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-28 20:23:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-28 20:23:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:26,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:26,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079321504] [2023-11-28 20:23:26,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079321504] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:26,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141255104] [2023-11-28 20:23:26,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:26,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:26,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:26,026 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:26,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 20:23:26,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:26,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:23:26,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-28 20:23:26,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:26,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141255104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:26,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:26,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:26,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717555223] [2023-11-28 20:23:26,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:26,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:26,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:26,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:26,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:26,213 INFO L87 Difference]: Start difference. First operand 5853 states and 10120 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:26,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:26,700 INFO L93 Difference]: Finished difference Result 12398 states and 21091 transitions. [2023-11-28 20:23:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:26,700 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2023-11-28 20:23:26,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:26,729 INFO L225 Difference]: With dead ends: 12398 [2023-11-28 20:23:26,729 INFO L226 Difference]: Without dead ends: 6807 [2023-11-28 20:23:26,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:26,747 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 77 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:26,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 230 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:23:26,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2023-11-28 20:23:27,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5853. [2023-11-28 20:23:27,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5853 states, 4680 states have (on average 1.4151709401709403) internal successors, (6623), 4939 states have internal predecessors, (6623), 577 states have call successors, (577), 305 states have call predecessors, (577), 595 states have return successors, (2916), 672 states have call predecessors, (2916), 577 states have call successors, (2916) [2023-11-28 20:23:27,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5853 states to 5853 states and 10116 transitions. [2023-11-28 20:23:27,187 INFO L78 Accepts]: Start accepts. Automaton has 5853 states and 10116 transitions. Word has length 97 [2023-11-28 20:23:27,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:27,188 INFO L495 AbstractCegarLoop]: Abstraction has 5853 states and 10116 transitions. [2023-11-28 20:23:27,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:27,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5853 states and 10116 transitions. [2023-11-28 20:23:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 20:23:27,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:27,220 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:27,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 20:23:27,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-28 20:23:27,421 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:27,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:27,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1091145433, now seen corresponding path program 1 times [2023-11-28 20:23:27,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:27,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103261124] [2023-11-28 20:23:27,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:27,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:23:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:23:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 20:23:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:23:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:23:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:23:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:23:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:27,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:27,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103261124] [2023-11-28 20:23:27,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103261124] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:27,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240144097] [2023-11-28 20:23:27,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:27,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:27,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:27,553 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:27,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 20:23:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:27,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:27,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 20:23:27,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:27,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240144097] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:27,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:27,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-11-28 20:23:27,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382054232] [2023-11-28 20:23:27,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:27,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:27,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:27,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:27,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:27,677 INFO L87 Difference]: Start difference. First operand 5853 states and 10116 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:27,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:27,912 INFO L93 Difference]: Finished difference Result 11856 states and 20687 transitions. [2023-11-28 20:23:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:27,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2023-11-28 20:23:27,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:27,936 INFO L225 Difference]: With dead ends: 11856 [2023-11-28 20:23:27,936 INFO L226 Difference]: Without dead ends: 6465 [2023-11-28 20:23:27,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:27,946 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 20 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:27,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 235 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:27,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6465 states. [2023-11-28 20:23:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6465 to 6465. [2023-11-28 20:23:28,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6465 states, 5076 states have (on average 1.3977541371158393) internal successors, (7095), 5335 states have internal predecessors, (7095), 721 states have call successors, (721), 377 states have call predecessors, (721), 667 states have return successors, (3444), 816 states have call predecessors, (3444), 721 states have call successors, (3444) [2023-11-28 20:23:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6465 states to 6465 states and 11260 transitions. [2023-11-28 20:23:28,312 INFO L78 Accepts]: Start accepts. Automaton has 6465 states and 11260 transitions. Word has length 99 [2023-11-28 20:23:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:28,312 INFO L495 AbstractCegarLoop]: Abstraction has 6465 states and 11260 transitions. [2023-11-28 20:23:28,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:28,312 INFO L276 IsEmpty]: Start isEmpty. Operand 6465 states and 11260 transitions. [2023-11-28 20:23:28,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 20:23:28,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:28,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:28,334 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 20:23:28,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-28 20:23:28,530 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:28,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:28,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1930179095, now seen corresponding path program 1 times [2023-11-28 20:23:28,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:28,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221520743] [2023-11-28 20:23:28,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:23:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:23:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 20:23:28,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:23:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:23:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:28,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:23:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:23:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:28,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:28,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221520743] [2023-11-28 20:23:28,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221520743] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:28,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905318739] [2023-11-28 20:23:28,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:28,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:28,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:28,682 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:28,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 20:23:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:28,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:28,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:28,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:28,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905318739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:28,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:28,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-28 20:23:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226227593] [2023-11-28 20:23:28,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:28,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:28,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:28,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:28,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:28,876 INFO L87 Difference]: Start difference. First operand 6465 states and 11260 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:29,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:29,372 INFO L93 Difference]: Finished difference Result 12480 states and 20997 transitions. [2023-11-28 20:23:29,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:23:29,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2023-11-28 20:23:29,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:29,403 INFO L225 Difference]: With dead ends: 12480 [2023-11-28 20:23:29,403 INFO L226 Difference]: Without dead ends: 6565 [2023-11-28 20:23:29,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:29,417 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 178 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:29,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 547 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:23:29,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6565 states. [2023-11-28 20:23:29,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6565 to 6561. [2023-11-28 20:23:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6561 states, 5148 states have (on average 1.385975135975136) internal successors, (7135), 5431 states have internal predecessors, (7135), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3016), 816 states have call predecessors, (3016), 721 states have call successors, (3016) [2023-11-28 20:23:29,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6561 states to 6561 states and 10872 transitions. [2023-11-28 20:23:29,816 INFO L78 Accepts]: Start accepts. Automaton has 6561 states and 10872 transitions. Word has length 99 [2023-11-28 20:23:29,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:29,816 INFO L495 AbstractCegarLoop]: Abstraction has 6561 states and 10872 transitions. [2023-11-28 20:23:29,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:29,817 INFO L276 IsEmpty]: Start isEmpty. Operand 6561 states and 10872 transitions. [2023-11-28 20:23:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 20:23:29,833 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:29,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:29,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 20:23:30,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 20:23:30,035 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:30,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:30,036 INFO L85 PathProgramCache]: Analyzing trace with hash -96433003, now seen corresponding path program 2 times [2023-11-28 20:23:30,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:30,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865647954] [2023-11-28 20:23:30,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:23:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:23:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 20:23:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:23:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:23:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:23:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:23:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:30,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:30,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865647954] [2023-11-28 20:23:30,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865647954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:30,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114034260] [2023-11-28 20:23:30,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:23:30,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:30,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:30,173 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:30,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 20:23:30,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 20:23:30,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:23:30,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:23:30,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:30,284 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-28 20:23:30,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:30,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114034260] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:30,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:30,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-11-28 20:23:30,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111210163] [2023-11-28 20:23:30,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:30,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:23:30,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:30,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:23:30,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:30,287 INFO L87 Difference]: Start difference. First operand 6561 states and 10872 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-28 20:23:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:30,681 INFO L93 Difference]: Finished difference Result 8221 states and 15175 transitions. [2023-11-28 20:23:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 20:23:30,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 99 [2023-11-28 20:23:30,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:30,714 INFO L225 Difference]: With dead ends: 8221 [2023-11-28 20:23:30,714 INFO L226 Difference]: Without dead ends: 8217 [2023-11-28 20:23:30,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:30,718 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 37 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:30,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 447 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2023-11-28 20:23:31,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 6689. [2023-11-28 20:23:31,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6689 states, 5276 states have (on average 1.3766110689916604) internal successors, (7263), 5559 states have internal predecessors, (7263), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3016), 816 states have call predecessors, (3016), 721 states have call successors, (3016) [2023-11-28 20:23:31,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6689 states to 6689 states and 11000 transitions. [2023-11-28 20:23:31,250 INFO L78 Accepts]: Start accepts. Automaton has 6689 states and 11000 transitions. Word has length 99 [2023-11-28 20:23:31,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:31,251 INFO L495 AbstractCegarLoop]: Abstraction has 6689 states and 11000 transitions. [2023-11-28 20:23:31,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-28 20:23:31,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6689 states and 11000 transitions. [2023-11-28 20:23:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 20:23:31,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:31,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:31,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 20:23:31,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 20:23:31,473 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:31,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:31,473 INFO L85 PathProgramCache]: Analyzing trace with hash -39174701, now seen corresponding path program 1 times [2023-11-28 20:23:31,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:31,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984784900] [2023-11-28 20:23:31,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:31,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:23:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:23:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 20:23:31,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:23:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:23:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:23:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:23:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-28 20:23:31,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:31,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984784900] [2023-11-28 20:23:31,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984784900] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:31,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726917171] [2023-11-28 20:23:31,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:31,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:31,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:31,607 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:31,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 20:23:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:31,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:23:31,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-11-28 20:23:31,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:31,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726917171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:31,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:31,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2023-11-28 20:23:31,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405076045] [2023-11-28 20:23:31,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:31,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:23:31,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:31,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:23:31,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:31,788 INFO L87 Difference]: Start difference. First operand 6689 states and 11000 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-28 20:23:32,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:32,161 INFO L93 Difference]: Finished difference Result 12748 states and 20399 transitions. [2023-11-28 20:23:32,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:32,162 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 99 [2023-11-28 20:23:32,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:32,184 INFO L225 Difference]: With dead ends: 12748 [2023-11-28 20:23:32,184 INFO L226 Difference]: Without dead ends: 6625 [2023-11-28 20:23:32,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:32,196 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:32,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 584 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:32,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6625 states. [2023-11-28 20:23:32,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6625 to 6625. [2023-11-28 20:23:32,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 5212 states have (on average 1.3689562547966232) internal successors, (7135), 5495 states have internal predecessors, (7135), 721 states have call successors, (721), 377 states have call predecessors, (721), 691 states have return successors, (3016), 816 states have call predecessors, (3016), 721 states have call successors, (3016) [2023-11-28 20:23:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 10872 transitions. [2023-11-28 20:23:32,735 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 10872 transitions. Word has length 99 [2023-11-28 20:23:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:32,736 INFO L495 AbstractCegarLoop]: Abstraction has 6625 states and 10872 transitions. [2023-11-28 20:23:32,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-28 20:23:32,736 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 10872 transitions. [2023-11-28 20:23:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-28 20:23:32,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:32,756 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:32,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:32,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 20:23:32,957 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:32,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:32,957 INFO L85 PathProgramCache]: Analyzing trace with hash 871855670, now seen corresponding path program 1 times [2023-11-28 20:23:32,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:32,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093958641] [2023-11-28 20:23:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:32,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:33,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:23:33,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:23:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 20:23:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:23:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:23:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 20:23:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:23:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:23:33,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:33,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093958641] [2023-11-28 20:23:33,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093958641] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:33,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368908019] [2023-11-28 20:23:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:33,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:33,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:33,119 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:33,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 20:23:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:33,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:33,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:33,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:33,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368908019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:33,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:33,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2023-11-28 20:23:33,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178124505] [2023-11-28 20:23:33,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:33,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:33,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:33,314 INFO L87 Difference]: Start difference. First operand 6625 states and 10872 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:33,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:33,839 INFO L93 Difference]: Finished difference Result 12940 states and 20614 transitions. [2023-11-28 20:23:33,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:23:33,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2023-11-28 20:23:33,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:33,867 INFO L225 Difference]: With dead ends: 12940 [2023-11-28 20:23:33,867 INFO L226 Difference]: Without dead ends: 6845 [2023-11-28 20:23:33,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:33,882 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 192 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:33,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 570 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 20:23:33,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2023-11-28 20:23:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6841. [2023-11-28 20:23:34,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 5392 states have (on average 1.3492210682492582) internal successors, (7275), 5711 states have internal predecessors, (7275), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2656), 816 states have call predecessors, (2656), 721 states have call successors, (2656) [2023-11-28 20:23:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 10652 transitions. [2023-11-28 20:23:34,449 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 10652 transitions. Word has length 102 [2023-11-28 20:23:34,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:34,449 INFO L495 AbstractCegarLoop]: Abstraction has 6841 states and 10652 transitions. [2023-11-28 20:23:34,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:34,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 10652 transitions. [2023-11-28 20:23:34,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-28 20:23:34,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:34,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:34,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:34,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:34,664 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:34,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:34,665 INFO L85 PathProgramCache]: Analyzing trace with hash -814324168, now seen corresponding path program 1 times [2023-11-28 20:23:34,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:34,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448009112] [2023-11-28 20:23:34,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:34,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:34,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-28 20:23:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-28 20:23:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-28 20:23:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-28 20:23:34,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-28 20:23:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 20:23:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:23:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,793 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:23:34,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:34,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448009112] [2023-11-28 20:23:34,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448009112] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:34,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468228333] [2023-11-28 20:23:34,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:34,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:34,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:34,796 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:34,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-28 20:23:34,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:34,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:23:34,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:34,931 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-28 20:23:34,931 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:34,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468228333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:34,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:34,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2023-11-28 20:23:34,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838238489] [2023-11-28 20:23:34,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:34,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:34,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:34,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:34,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:34,933 INFO L87 Difference]: Start difference. First operand 6841 states and 10652 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:35,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:35,389 INFO L93 Difference]: Finished difference Result 14070 states and 21801 transitions. [2023-11-28 20:23:35,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:35,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2023-11-28 20:23:35,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:35,408 INFO L225 Difference]: With dead ends: 14070 [2023-11-28 20:23:35,408 INFO L226 Difference]: Without dead ends: 7543 [2023-11-28 20:23:35,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:35,419 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 76 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:35,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 222 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:23:35,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7543 states. [2023-11-28 20:23:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7543 to 6841. [2023-11-28 20:23:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6841 states, 5392 states have (on average 1.3477373887240356) internal successors, (7267), 5711 states have internal predecessors, (7267), 721 states have call successors, (721), 377 states have call predecessors, (721), 727 states have return successors, (2656), 816 states have call predecessors, (2656), 721 states have call successors, (2656) [2023-11-28 20:23:35,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6841 states to 6841 states and 10644 transitions. [2023-11-28 20:23:35,809 INFO L78 Accepts]: Start accepts. Automaton has 6841 states and 10644 transitions. Word has length 102 [2023-11-28 20:23:35,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:35,810 INFO L495 AbstractCegarLoop]: Abstraction has 6841 states and 10644 transitions. [2023-11-28 20:23:35,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:35,810 INFO L276 IsEmpty]: Start isEmpty. Operand 6841 states and 10644 transitions. [2023-11-28 20:23:35,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 20:23:35,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:35,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:35,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-11-28 20:23:36,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:36,023 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:36,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:36,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1864122538, now seen corresponding path program 1 times [2023-11-28 20:23:36,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:36,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107505385] [2023-11-28 20:23:36,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:36,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-28 20:23:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:36,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:36,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 20:23:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 20:23:36,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107505385] [2023-11-28 20:23:36,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107505385] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:36,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73881158] [2023-11-28 20:23:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:36,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:36,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:36,157 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:36,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-28 20:23:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:36,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:36,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:36,286 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-28 20:23:36,286 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:36,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73881158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:36,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:36,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-11-28 20:23:36,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154018448] [2023-11-28 20:23:36,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:36,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:36,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:23:36,288 INFO L87 Difference]: Start difference. First operand 6841 states and 10644 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:36,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:36,632 INFO L93 Difference]: Finished difference Result 14110 states and 21908 transitions. [2023-11-28 20:23:36,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:36,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2023-11-28 20:23:36,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:36,648 INFO L225 Difference]: With dead ends: 14110 [2023-11-28 20:23:36,648 INFO L226 Difference]: Without dead ends: 7803 [2023-11-28 20:23:36,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:23:36,655 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 22 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:36,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 237 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:36,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7803 states. [2023-11-28 20:23:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7803 to 7803. [2023-11-28 20:23:37,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7803 states, 6030 states have (on average 1.3203980099502488) internal successors, (7962), 6349 states have internal predecessors, (7962), 937 states have call successors, (937), 485 states have call predecessors, (937), 835 states have return successors, (3180), 1032 states have call predecessors, (3180), 937 states have call successors, (3180) [2023-11-28 20:23:37,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7803 states to 7803 states and 12079 transitions. [2023-11-28 20:23:37,059 INFO L78 Accepts]: Start accepts. Automaton has 7803 states and 12079 transitions. Word has length 104 [2023-11-28 20:23:37,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:37,059 INFO L495 AbstractCegarLoop]: Abstraction has 7803 states and 12079 transitions. [2023-11-28 20:23:37,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:37,059 INFO L276 IsEmpty]: Start isEmpty. Operand 7803 states and 12079 transitions. [2023-11-28 20:23:37,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 20:23:37,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:37,074 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:37,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-11-28 20:23:37,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:37,274 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:37,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:37,275 INFO L85 PathProgramCache]: Analyzing trace with hash 721620072, now seen corresponding path program 1 times [2023-11-28 20:23:37,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:37,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937785992] [2023-11-28 20:23:37,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:37,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-28 20:23:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:37,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 20:23:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 20:23:37,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:37,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937785992] [2023-11-28 20:23:37,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937785992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:37,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134742944] [2023-11-28 20:23:37,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:37,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:37,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:37,407 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:37,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-28 20:23:37,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:37,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:23:37,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:37,569 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:37,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:37,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134742944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:37,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:37,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-28 20:23:37,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724779474] [2023-11-28 20:23:37,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:37,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:37,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:37,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:37,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:37,571 INFO L87 Difference]: Start difference. First operand 7803 states and 12079 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:38,266 INFO L93 Difference]: Finished difference Result 15114 states and 22661 transitions. [2023-11-28 20:23:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:23:38,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2023-11-28 20:23:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:38,288 INFO L225 Difference]: With dead ends: 15114 [2023-11-28 20:23:38,288 INFO L226 Difference]: Without dead ends: 7969 [2023-11-28 20:23:38,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:38,302 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 173 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:38,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 508 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:23:38,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7969 states. [2023-11-28 20:23:38,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7969 to 7965. [2023-11-28 20:23:38,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7965 states, 6138 states have (on average 1.30514825676116) internal successors, (8011), 6511 states have internal predecessors, (8011), 937 states have call successors, (937), 485 states have call predecessors, (937), 889 states have return successors, (2884), 1032 states have call predecessors, (2884), 937 states have call successors, (2884) [2023-11-28 20:23:38,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7965 states to 7965 states and 11832 transitions. [2023-11-28 20:23:38,884 INFO L78 Accepts]: Start accepts. Automaton has 7965 states and 11832 transitions. Word has length 104 [2023-11-28 20:23:38,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:38,884 INFO L495 AbstractCegarLoop]: Abstraction has 7965 states and 11832 transitions. [2023-11-28 20:23:38,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7965 states and 11832 transitions. [2023-11-28 20:23:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 20:23:38,900 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:38,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:38,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-11-28 20:23:39,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:39,100 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:39,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1400892326, now seen corresponding path program 1 times [2023-11-28 20:23:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011222585] [2023-11-28 20:23:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:39,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-28 20:23:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:39,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 20:23:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 20:23:39,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:39,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011222585] [2023-11-28 20:23:39,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011222585] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:39,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227400663] [2023-11-28 20:23:39,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:39,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:39,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:39,218 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:39,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-28 20:23:39,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:39,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:23:39,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-28 20:23:39,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:39,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227400663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:39,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:39,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2023-11-28 20:23:39,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552796379] [2023-11-28 20:23:39,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:39,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:39,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:39,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:39,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-28 20:23:39,370 INFO L87 Difference]: Start difference. First operand 7965 states and 11832 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:39,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:39,757 INFO L93 Difference]: Finished difference Result 12501 states and 18133 transitions. [2023-11-28 20:23:39,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:23:39,758 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2023-11-28 20:23:39,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:39,769 INFO L225 Difference]: With dead ends: 12501 [2023-11-28 20:23:39,769 INFO L226 Difference]: Without dead ends: 5086 [2023-11-28 20:23:39,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:39,777 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 72 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:39,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 449 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:23:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2023-11-28 20:23:40,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 5086. [2023-11-28 20:23:40,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5086 states, 3894 states have (on average 1.29301489470981) internal successors, (5035), 4148 states have internal predecessors, (5035), 609 states have call successors, (609), 313 states have call predecessors, (609), 582 states have return successors, (1692), 656 states have call predecessors, (1692), 609 states have call successors, (1692) [2023-11-28 20:23:40,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5086 states to 5086 states and 7336 transitions. [2023-11-28 20:23:40,029 INFO L78 Accepts]: Start accepts. Automaton has 5086 states and 7336 transitions. Word has length 104 [2023-11-28 20:23:40,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:40,029 INFO L495 AbstractCegarLoop]: Abstraction has 5086 states and 7336 transitions. [2023-11-28 20:23:40,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-28 20:23:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5086 states and 7336 transitions. [2023-11-28 20:23:40,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 20:23:40,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:40,038 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:40,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:40,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:40,239 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:40,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash 93749928, now seen corresponding path program 1 times [2023-11-28 20:23:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:40,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151913961] [2023-11-28 20:23:40,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:40,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-28 20:23:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-28 20:23:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-28 20:23:40,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-28 20:23:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-28 20:23:40,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151913961] [2023-11-28 20:23:40,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151913961] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:40,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506265760] [2023-11-28 20:23:40,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:40,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:40,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:40,378 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:40,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-28 20:23:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:40,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-28 20:23:40,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:40,588 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-11-28 20:23:40,588 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:40,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506265760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:40,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:40,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2023-11-28 20:23:40,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526522201] [2023-11-28 20:23:40,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:40,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:40,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:40,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:40,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:40,590 INFO L87 Difference]: Start difference. First operand 5086 states and 7336 transitions. Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:40,900 INFO L93 Difference]: Finished difference Result 9622 states and 13549 transitions. [2023-11-28 20:23:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:23:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2023-11-28 20:23:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:40,912 INFO L225 Difference]: With dead ends: 9622 [2023-11-28 20:23:40,913 INFO L226 Difference]: Without dead ends: 4805 [2023-11-28 20:23:40,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:40,921 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 2 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:40,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 369 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:23:40,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4805 states. [2023-11-28 20:23:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4805 to 4805. [2023-11-28 20:23:41,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4805 states, 3769 states have (on average 1.2963650835765455) internal successors, (4886), 4007 states have internal predecessors, (4886), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:41,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4805 states to 4805 states and 6739 transitions. [2023-11-28 20:23:41,152 INFO L78 Accepts]: Start accepts. Automaton has 4805 states and 6739 transitions. Word has length 104 [2023-11-28 20:23:41,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:41,152 INFO L495 AbstractCegarLoop]: Abstraction has 4805 states and 6739 transitions. [2023-11-28 20:23:41,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-28 20:23:41,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4805 states and 6739 transitions. [2023-11-28 20:23:41,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-28 20:23:41,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:41,158 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:41,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:41,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:41,359 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:41,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:41,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1932596493, now seen corresponding path program 1 times [2023-11-28 20:23:41,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:41,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987019111] [2023-11-28 20:23:41,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:41,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:41,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-28 20:23:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-28 20:23:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-28 20:23:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-28 20:23:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-28 20:23:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-28 20:23:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,533 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:41,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:41,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987019111] [2023-11-28 20:23:41,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987019111] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:41,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992865929] [2023-11-28 20:23:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:41,535 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:41,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-28 20:23:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:41,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:23:41,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:41,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:41,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992865929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:41,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:41,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 20:23:41,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593206516] [2023-11-28 20:23:41,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:41,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:41,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:41,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:41,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:41,698 INFO L87 Difference]: Start difference. First operand 4805 states and 6739 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:41,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:41,943 INFO L93 Difference]: Finished difference Result 9421 states and 13096 transitions. [2023-11-28 20:23:41,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:41,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 117 [2023-11-28 20:23:41,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:41,951 INFO L225 Difference]: With dead ends: 9421 [2023-11-28 20:23:41,951 INFO L226 Difference]: Without dead ends: 4885 [2023-11-28 20:23:41,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:41,956 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:41,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 226 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:41,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2023-11-28 20:23:42,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4853. [2023-11-28 20:23:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3817 states have (on average 1.292638197537333) internal successors, (4934), 4055 states have internal predecessors, (4934), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 6787 transitions. [2023-11-28 20:23:42,188 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 6787 transitions. Word has length 117 [2023-11-28 20:23:42,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:42,188 INFO L495 AbstractCegarLoop]: Abstraction has 4853 states and 6787 transitions. [2023-11-28 20:23:42,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:42,188 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 6787 transitions. [2023-11-28 20:23:42,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-28 20:23:42,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:42,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:42,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-28 20:23:42,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:42,395 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:42,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:42,395 INFO L85 PathProgramCache]: Analyzing trace with hash -256404888, now seen corresponding path program 1 times [2023-11-28 20:23:42,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:42,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098124281] [2023-11-28 20:23:42,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:42,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:42,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:42,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:23:42,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 20:23:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 20:23:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:23:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:23:42,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 20:23:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,564 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:42,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:42,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098124281] [2023-11-28 20:23:42,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098124281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:42,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390355219] [2023-11-28 20:23:42,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:42,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:42,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:42,566 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:42,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-28 20:23:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:42,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:42,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:42,693 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:42,694 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:42,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390355219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:42,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:42,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-28 20:23:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050902944] [2023-11-28 20:23:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:42,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:42,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:42,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:42,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:42,696 INFO L87 Difference]: Start difference. First operand 4853 states and 6787 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:42,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:42,956 INFO L93 Difference]: Finished difference Result 9453 states and 13064 transitions. [2023-11-28 20:23:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 118 [2023-11-28 20:23:42,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:42,964 INFO L225 Difference]: With dead ends: 9453 [2023-11-28 20:23:42,964 INFO L226 Difference]: Without dead ends: 4869 [2023-11-28 20:23:42,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:42,970 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 6 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:42,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 221 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:42,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2023-11-28 20:23:43,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4853. [2023-11-28 20:23:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3817 states have (on average 1.2800628766046633) internal successors, (4886), 4055 states have internal predecessors, (4886), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:43,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 6739 transitions. [2023-11-28 20:23:43,252 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 6739 transitions. Word has length 118 [2023-11-28 20:23:43,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:43,252 INFO L495 AbstractCegarLoop]: Abstraction has 4853 states and 6739 transitions. [2023-11-28 20:23:43,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:43,252 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 6739 transitions. [2023-11-28 20:23:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-28 20:23:43,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:43,260 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:43,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-11-28 20:23:43,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:43,460 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:43,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1470067273, now seen corresponding path program 1 times [2023-11-28 20:23:43,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:43,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671036731] [2023-11-28 20:23:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:43,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-28 20:23:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-28 20:23:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-28 20:23:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-28 20:23:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-28 20:23:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-28 20:23:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:43,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:43,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671036731] [2023-11-28 20:23:43,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671036731] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:43,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743817567] [2023-11-28 20:23:43,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:43,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:43,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:43,650 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:43,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-28 20:23:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:43,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:43,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:43,891 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:43,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743817567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:43,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:43,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2023-11-28 20:23:43,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41109824] [2023-11-28 20:23:43,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:43,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:43,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:43,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:43,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:43,894 INFO L87 Difference]: Start difference. First operand 4853 states and 6739 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:44,148 INFO L93 Difference]: Finished difference Result 9437 states and 12952 transitions. [2023-11-28 20:23:44,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:23:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 118 [2023-11-28 20:23:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:44,158 INFO L225 Difference]: With dead ends: 9437 [2023-11-28 20:23:44,158 INFO L226 Difference]: Without dead ends: 4853 [2023-11-28 20:23:44,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-11-28 20:23:44,164 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 210 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:44,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 120 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:44,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2023-11-28 20:23:44,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4853. [2023-11-28 20:23:44,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3817 states have (on average 1.2758711029604402) internal successors, (4870), 4055 states have internal predecessors, (4870), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:44,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 6723 transitions. [2023-11-28 20:23:44,462 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 6723 transitions. Word has length 118 [2023-11-28 20:23:44,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:44,462 INFO L495 AbstractCegarLoop]: Abstraction has 4853 states and 6723 transitions. [2023-11-28 20:23:44,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:44,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 6723 transitions. [2023-11-28 20:23:44,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-28 20:23:44,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:44,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:44,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-28 20:23:44,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 20:23:44,674 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:44,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:44,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1106088414, now seen corresponding path program 1 times [2023-11-28 20:23:44,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:44,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213560876] [2023-11-28 20:23:44,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:44,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:23:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-28 20:23:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 20:23:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 20:23:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,884 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:44,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213560876] [2023-11-28 20:23:44,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213560876] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:44,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063394443] [2023-11-28 20:23:44,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:44,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:44,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:44,885 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:44,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-28 20:23:44,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:44,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:44,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:45,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:45,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063394443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:45,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:45,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-11-28 20:23:45,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608748453] [2023-11-28 20:23:45,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:45,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:23:45,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:45,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:23:45,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:45,010 INFO L87 Difference]: Start difference. First operand 4853 states and 6723 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:45,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:45,307 INFO L93 Difference]: Finished difference Result 9613 states and 13176 transitions. [2023-11-28 20:23:45,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:23:45,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2023-11-28 20:23:45,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:45,314 INFO L225 Difference]: With dead ends: 9613 [2023-11-28 20:23:45,314 INFO L226 Difference]: Without dead ends: 5029 [2023-11-28 20:23:45,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-28 20:23:45,318 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 10 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:45,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 229 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:45,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5029 states. [2023-11-28 20:23:45,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5029 to 4965. [2023-11-28 20:23:45,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4965 states, 3929 states have (on average 1.2761516925426317) internal successors, (5014), 4167 states have internal predecessors, (5014), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 6867 transitions. [2023-11-28 20:23:45,558 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 6867 transitions. Word has length 119 [2023-11-28 20:23:45,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:45,558 INFO L495 AbstractCegarLoop]: Abstraction has 4965 states and 6867 transitions. [2023-11-28 20:23:45,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-28 20:23:45,558 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 6867 transitions. [2023-11-28 20:23:45,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-28 20:23:45,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:45,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:45,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-28 20:23:45,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:45,766 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:45,766 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:45,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1160481312, now seen corresponding path program 1 times [2023-11-28 20:23:45,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:45,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530988020] [2023-11-28 20:23:45,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:45,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:45,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-28 20:23:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-28 20:23:45,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-28 20:23:45,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-28 20:23:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-28 20:23:45,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-28 20:23:45,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:45,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530988020] [2023-11-28 20:23:45,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530988020] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:45,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577730641] [2023-11-28 20:23:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:45,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:45,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:45,946 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:45,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-28 20:23:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:46,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:46,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:46,163 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:46,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:46,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577730641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:46,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:46,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2023-11-28 20:23:46,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580478911] [2023-11-28 20:23:46,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:46,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:46,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:46,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:46,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:46,165 INFO L87 Difference]: Start difference. First operand 4965 states and 6867 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:46,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:46,456 INFO L93 Difference]: Finished difference Result 9661 states and 13208 transitions. [2023-11-28 20:23:46,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:23:46,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 119 [2023-11-28 20:23:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:46,466 INFO L225 Difference]: With dead ends: 9661 [2023-11-28 20:23:46,466 INFO L226 Difference]: Without dead ends: 4965 [2023-11-28 20:23:46,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:46,472 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 213 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:46,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 134 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:46,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2023-11-28 20:23:46,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 4965. [2023-11-28 20:23:46,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4965 states, 3929 states have (on average 1.2680071264952915) internal successors, (4982), 4167 states have internal predecessors, (4982), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 6835 transitions. [2023-11-28 20:23:46,738 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 6835 transitions. Word has length 119 [2023-11-28 20:23:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:46,738 INFO L495 AbstractCegarLoop]: Abstraction has 4965 states and 6835 transitions. [2023-11-28 20:23:46,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 6835 transitions. [2023-11-28 20:23:46,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-28 20:23:46,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:46,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:46,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-11-28 20:23:46,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 20:23:46,947 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:46,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:46,947 INFO L85 PathProgramCache]: Analyzing trace with hash -19799755, now seen corresponding path program 1 times [2023-11-28 20:23:46,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:46,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141062974] [2023-11-28 20:23:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:46,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:47,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-28 20:23:47,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-28 20:23:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-28 20:23:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-28 20:23:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-28 20:23:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-28 20:23:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:47,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:47,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141062974] [2023-11-28 20:23:47,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141062974] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:47,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139889270] [2023-11-28 20:23:47,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:47,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:47,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:47,175 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:47,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-28 20:23:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:47,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:47,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:47,429 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:47,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:47,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139889270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:47,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:47,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2023-11-28 20:23:47,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838568943] [2023-11-28 20:23:47,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:47,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:47,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:47,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:47,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:47,432 INFO L87 Difference]: Start difference. First operand 4965 states and 6835 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:47,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:47,876 INFO L93 Difference]: Finished difference Result 9549 states and 13016 transitions. [2023-11-28 20:23:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:23:47,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 120 [2023-11-28 20:23:47,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:47,889 INFO L225 Difference]: With dead ends: 9549 [2023-11-28 20:23:47,889 INFO L226 Difference]: Without dead ends: 4853 [2023-11-28 20:23:47,896 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:47,897 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 169 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:47,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 116 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:47,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4853 states. [2023-11-28 20:23:48,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4853. [2023-11-28 20:23:48,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 3817 states have (on average 1.2632957820277706) internal successors, (4822), 4055 states have internal predecessors, (4822), 469 states have call successors, (469), 313 states have call predecessors, (469), 566 states have return successors, (1384), 500 states have call predecessors, (1384), 469 states have call successors, (1384) [2023-11-28 20:23:48,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 6675 transitions. [2023-11-28 20:23:48,205 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 6675 transitions. Word has length 120 [2023-11-28 20:23:48,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:48,205 INFO L495 AbstractCegarLoop]: Abstraction has 4853 states and 6675 transitions. [2023-11-28 20:23:48,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 6675 transitions. [2023-11-28 20:23:48,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-28 20:23:48,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:48,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:48,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-28 20:23:48,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:48,414 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:48,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:48,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2064059006, now seen corresponding path program 1 times [2023-11-28 20:23:48,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:48,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107263799] [2023-11-28 20:23:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:48,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:48,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:48,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:23:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:23:48,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 20:23:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 20:23:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-28 20:23:48,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:48,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107263799] [2023-11-28 20:23:48,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107263799] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:48,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:48,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-28 20:23:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655315951] [2023-11-28 20:23:48,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:48,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 20:23:48,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 20:23:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-28 20:23:48,538 INFO L87 Difference]: Start difference. First operand 4853 states and 6675 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:49,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:49,317 INFO L93 Difference]: Finished difference Result 9805 states and 13328 transitions. [2023-11-28 20:23:49,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:23:49,318 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2023-11-28 20:23:49,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:49,328 INFO L225 Difference]: With dead ends: 9805 [2023-11-28 20:23:49,328 INFO L226 Difference]: Without dead ends: 5221 [2023-11-28 20:23:49,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:23:49,334 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 140 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:49,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 225 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:23:49,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5221 states. [2023-11-28 20:23:49,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5221 to 4945. [2023-11-28 20:23:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4945 states, 3893 states have (on average 1.25815566401233) internal successors, (4898), 4147 states have internal predecessors, (4898), 469 states have call successors, (469), 313 states have call predecessors, (469), 582 states have return successors, (1388), 500 states have call predecessors, (1388), 469 states have call successors, (1388) [2023-11-28 20:23:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4945 states to 4945 states and 6755 transitions. [2023-11-28 20:23:49,632 INFO L78 Accepts]: Start accepts. Automaton has 4945 states and 6755 transitions. Word has length 121 [2023-11-28 20:23:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:49,632 INFO L495 AbstractCegarLoop]: Abstraction has 4945 states and 6755 transitions. [2023-11-28 20:23:49,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4945 states and 6755 transitions. [2023-11-28 20:23:49,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-28 20:23:49,638 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:49,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:49,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-28 20:23:49,639 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:49,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1670208512, now seen corresponding path program 1 times [2023-11-28 20:23:49,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:49,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737474524] [2023-11-28 20:23:49,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:49,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 20:23:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-28 20:23:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-28 20:23:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-28 20:23:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:49,760 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:49,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:49,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737474524] [2023-11-28 20:23:49,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737474524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:49,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:23:49,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-28 20:23:49,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106742916] [2023-11-28 20:23:49,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:49,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:23:49,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:49,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:23:49,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:23:49,763 INFO L87 Difference]: Start difference. First operand 4945 states and 6755 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:50,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:50,731 INFO L93 Difference]: Finished difference Result 11585 states and 16680 transitions. [2023-11-28 20:23:50,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 20:23:50,731 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 121 [2023-11-28 20:23:50,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:50,746 INFO L225 Difference]: With dead ends: 11585 [2023-11-28 20:23:50,746 INFO L226 Difference]: Without dead ends: 6909 [2023-11-28 20:23:50,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-28 20:23:50,754 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 270 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:50,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 365 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 20:23:50,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6909 states. [2023-11-28 20:23:51,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6909 to 6201. [2023-11-28 20:23:51,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6201 states, 4961 states have (on average 1.2832090304374117) internal successors, (6366), 5323 states have internal predecessors, (6366), 517 states have call successors, (517), 361 states have call predecessors, (517), 722 states have return successors, (2204), 532 states have call predecessors, (2204), 517 states have call successors, (2204) [2023-11-28 20:23:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6201 states to 6201 states and 9087 transitions. [2023-11-28 20:23:51,124 INFO L78 Accepts]: Start accepts. Automaton has 6201 states and 9087 transitions. Word has length 121 [2023-11-28 20:23:51,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:51,124 INFO L495 AbstractCegarLoop]: Abstraction has 6201 states and 9087 transitions. [2023-11-28 20:23:51,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:51,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6201 states and 9087 transitions. [2023-11-28 20:23:51,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-28 20:23:51,131 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:51,132 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:51,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-28 20:23:51,132 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:51,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash -538832258, now seen corresponding path program 1 times [2023-11-28 20:23:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:51,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917022757] [2023-11-28 20:23:51,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:51,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:51,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:51,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:51,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 20:23:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 20:23:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-28 20:23:51,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917022757] [2023-11-28 20:23:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917022757] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:51,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352883116] [2023-11-28 20:23:51,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:51,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:51,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:51,281 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:51,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-28 20:23:51,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:51,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:23:51,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 30 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-28 20:23:51,498 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:23:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 20:23:51,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352883116] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:23:51,716 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 20:23:51,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2023-11-28 20:23:51,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564010361] [2023-11-28 20:23:51,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 20:23:51,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:23:51,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:23:51,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:51,718 INFO L87 Difference]: Start difference. First operand 6201 states and 9087 transitions. Second operand has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 10 states have internal predecessors, (185), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-28 20:23:54,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:54,284 INFO L93 Difference]: Finished difference Result 16778 states and 24678 transitions. [2023-11-28 20:23:54,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-11-28 20:23:54,285 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 10 states have internal predecessors, (185), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) Word has length 123 [2023-11-28 20:23:54,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:54,307 INFO L225 Difference]: With dead ends: 16778 [2023-11-28 20:23:54,307 INFO L226 Difference]: Without dead ends: 10714 [2023-11-28 20:23:54,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 292 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1134 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=735, Invalid=2805, Unknown=0, NotChecked=0, Total=3540 [2023-11-28 20:23:54,319 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 2215 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2222 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:54,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2222 Valid, 381 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 20:23:54,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10714 states. [2023-11-28 20:23:54,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10714 to 9614. [2023-11-28 20:23:54,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9614 states, 7890 states have (on average 1.2667934093789608) internal successors, (9995), 8382 states have internal predecessors, (9995), 675 states have call successors, (675), 565 states have call predecessors, (675), 1048 states have return successors, (2589), 674 states have call predecessors, (2589), 675 states have call successors, (2589) [2023-11-28 20:23:54,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9614 states to 9614 states and 13259 transitions. [2023-11-28 20:23:54,920 INFO L78 Accepts]: Start accepts. Automaton has 9614 states and 13259 transitions. Word has length 123 [2023-11-28 20:23:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:54,920 INFO L495 AbstractCegarLoop]: Abstraction has 9614 states and 13259 transitions. [2023-11-28 20:23:54,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 14.23076923076923) internal successors, (185), 10 states have internal predecessors, (185), 5 states have call successors, (26), 8 states have call predecessors, (26), 8 states have return successors, (25), 5 states have call predecessors, (25), 5 states have call successors, (25) [2023-11-28 20:23:54,920 INFO L276 IsEmpty]: Start isEmpty. Operand 9614 states and 13259 transitions. [2023-11-28 20:23:54,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-28 20:23:54,926 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:23:54,926 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2023-11-28 20:23:54,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-28 20:23:55,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2023-11-28 20:23:55,127 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:23:55,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:23:55,127 INFO L85 PathProgramCache]: Analyzing trace with hash 742131714, now seen corresponding path program 1 times [2023-11-28 20:23:55,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:23:55,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349317178] [2023-11-28 20:23:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:55,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:23:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-28 20:23:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-28 20:23:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-28 20:23:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-28 20:23:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-28 20:23:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-28 20:23:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-28 20:23:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-28 20:23:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-28 20:23:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-28 20:23:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-28 20:23:55,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-28 20:23:55,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:23:55,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349317178] [2023-11-28 20:23:55,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349317178] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:23:55,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747669117] [2023-11-28 20:23:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:23:55,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 20:23:55,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:23:55,274 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 20:23:55,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-28 20:23:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:23:55,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:23:55,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:23:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-28 20:23:55,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:23:55,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747669117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:23:55,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 20:23:55,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2023-11-28 20:23:55,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588259802] [2023-11-28 20:23:55,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:23:55,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:23:55,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:23:55,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:23:55,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:55,454 INFO L87 Difference]: Start difference. First operand 9614 states and 13259 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:55,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:23:55,741 INFO L93 Difference]: Finished difference Result 12403 states and 16880 transitions. [2023-11-28 20:23:55,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:23:55,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 123 [2023-11-28 20:23:55,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:23:55,742 INFO L225 Difference]: With dead ends: 12403 [2023-11-28 20:23:55,742 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:23:55,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:23:55,753 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 241 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:23:55,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 118 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:23:55,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:23:55,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:23:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:23:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:23:55,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2023-11-28 20:23:55,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:23:55,755 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:23:55,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-28 20:23:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:23:55,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:23:55,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:23:55,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2023-11-28 20:23:55,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-11-28 20:23:55,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:24:10,124 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 383 398) the Hoare annotation is: (let ((.cse0 (= ~comp_m1_st~0 |old(~comp_m1_st~0)|)) (.cse1 (< ~b1_val_t~0 1)) (.cse2 (not (= ~z_val~0 0))) (.cse3 (< ~z_ev~0 2)) (.cse4 (< ~d1_val_t~0 1)) (.cse5 (< ~b0_val~0 ~b0_val_t~0)) (.cse6 (< ~b0_val_t~0 1)) (.cse7 (not (= 0 ~z_val_t~0))) (.cse8 (< ~d1_val~0 ~d1_val_t~0)) (.cse9 (< ~d0_val_t~0 1)) (.cse10 (< 0 ~comp_m1_i~0)) (.cse11 (< ~d0_val~0 ~d0_val_t~0)) (.cse12 (< ~b1_val~0 ~b1_val_t~0))) (and (or .cse0 (< ~b0_ev~0 2) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12) (or .cse0 .cse1 (not (= ~b0_ev~0 1)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12))) [2023-11-28 20:24:10,124 INFO L899 garLoopResultBuilder]: For program point L129(lines 106 131) no Hoare annotation was computed. [2023-11-28 20:24:10,124 INFO L899 garLoopResultBuilder]: For program point L119(lines 119 124) no Hoare annotation was computed. [2023-11-28 20:24:10,124 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 125) no Hoare annotation was computed. [2023-11-28 20:24:10,124 INFO L899 garLoopResultBuilder]: For program point L111(lines 111 126) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 127) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 383 398) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 394) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L390-2(lines 383 398) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 264 278) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 273) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 264 278) the Hoare annotation is: true [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L275(lines 267 277) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L341-1(lines 317 349) no Hoare annotation was computed. [2023-11-28 20:24:10,125 INFO L899 garLoopResultBuilder]: For program point L331-1(lines 320 348) no Hoare annotation was computed. [2023-11-28 20:24:10,126 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 317 349) the Hoare annotation is: (let ((.cse22 (= ~d1_ev~0 |old(~d1_ev~0)|)) (.cse23 (= |old(~d0_ev~0)| ~d0_ev~0)) (.cse24 (= |old(~z_ev~0)| ~z_ev~0)) (.cse25 (= |old(~b1_ev~0)| ~b1_ev~0))) (let ((.cse2 (< |old(~b1_ev~0)| 2)) (.cse0 (not (= |old(~b0_ev~0)| 0))) (.cse10 (and .cse22 .cse23 .cse24 (= ~b0_ev~0 0) .cse25)) (.cse3 (< 0 |old(~d1_ev~0)|)) (.cse9 (< 0 |old(~d0_ev~0)|)) (.cse21 (< |old(~d0_ev~0)| 2)) (.cse1 (< ~b1_val_t~0 1)) (.cse17 (and .cse22 (= ~b0_ev~0 |old(~b0_ev~0)|) .cse23 .cse24 .cse25)) (.cse4 (not (= ~z_val~0 0))) (.cse5 (< ~d1_val_t~0 1)) (.cse6 (< ~b0_val~0 ~b0_val_t~0)) (.cse7 (< |old(~z_ev~0)| 2)) (.cse8 (< ~b0_val_t~0 1)) (.cse11 (not (= 0 ~z_val_t~0))) (.cse12 (< ~d1_val~0 ~d1_val_t~0)) (.cse13 (< ~d0_val_t~0 1)) (.cse14 (< 0 ~comp_m1_i~0)) (.cse20 (< 0 |old(~b1_ev~0)|)) (.cse15 (< ~d0_val~0 ~d0_val_t~0)) (.cse18 (< |old(~d1_ev~0)| 2)) (.cse19 (< |old(~b0_ev~0)| 2)) (.cse16 (< ~b1_val~0 ~b1_val_t~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse1 .cse2 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11 .cse12 .cse13 .cse14 .cse15 .cse18 .cse19 .cse16) (or .cse0 .cse1 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse18 .cse16) (or .cse21 .cse1 .cse2 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse11 .cse12 .cse13 .cse14 .cse15 .cse19 .cse16) (or .cse0 .cse1 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse16) (or .cse21 .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse18 .cse16) (or .cse21 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse18 .cse16) (or .cse1 .cse2 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11 .cse12 .cse13 .cse14 .cse15 .cse19 .cse16) (or .cse21 .cse1 .cse2 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse11 .cse12 .cse13 .cse14 .cse15 .cse18 .cse19 .cse16) (or .cse1 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse18 .cse19 .cse16) (or .cse21 .cse0 .cse1 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse16) (or .cse21 .cse1 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse19 .cse16) (or .cse21 .cse0 .cse1 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse18 .cse16) (or .cse1 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse19 .cse16) (or .cse21 .cse1 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse11 .cse12 .cse13 .cse14 .cse20 .cse15 .cse18 .cse19 .cse16)))) [2023-11-28 20:24:10,126 INFO L899 garLoopResultBuilder]: For program point L321-1(lines 320 348) no Hoare annotation was computed. [2023-11-28 20:24:10,126 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 317 349) no Hoare annotation was computed. [2023-11-28 20:24:10,126 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 320 348) no Hoare annotation was computed. [2023-11-28 20:24:10,126 INFO L899 garLoopResultBuilder]: For program point L326-1(lines 320 348) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 202) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L197-2(lines 197 202) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 211 249) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 157) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L152-2(lines 152 157) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 208 250) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L219-1(lines 211 249) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 187) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L182-2(lines 182 187) no Hoare annotation was computed. [2023-11-28 20:24:10,127 INFO L899 garLoopResultBuilder]: For program point L240-1(lines 208 250) no Hoare annotation was computed. [2023-11-28 20:24:10,128 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 208 250) the Hoare annotation is: (let ((.cse20 (= |old(~d1_val~0)| ~d1_val~0)) (.cse21 (= ~d1_ev~0 |old(~d1_ev~0)|)) (.cse22 (= ~b0_ev~0 |old(~b0_ev~0)|)) (.cse23 (= ~b1_val~0 |old(~b1_val~0)|)) (.cse24 (= |old(~d0_ev~0)| ~d0_ev~0)) (.cse25 (= ~z_val~0 0)) (.cse26 (= |old(~z_ev~0)| ~z_ev~0)) (.cse27 (= |old(~d0_val~0)| ~d0_val~0)) (.cse28 (= |old(~z_req_up~0)| ~z_req_up~0)) (.cse29 (= |old(~b1_ev~0)| ~b1_ev~0))) (let ((.cse18 (< 0 |old(~b1_ev~0)|)) (.cse5 (< 0 |old(~d1_ev~0)|)) (.cse17 (< 0 |old(~d0_ev~0)|)) (.cse0 (< |old(~d0_ev~0)| 2)) (.cse1 (and .cse20 .cse21 (= ~b0_req_up~0 |old(~b0_req_up~0)|) .cse22 .cse23 (= |old(~d0_req_up~0)| ~d0_req_up~0) .cse24 .cse25 .cse26 .cse27 (= |old(~b1_req_up~0)| ~b1_req_up~0) .cse28 .cse29 (= |old(~b0_val~0)| ~b0_val~0) (= ~d1_req_up~0 |old(~d1_req_up~0)|))) (.cse2 (< ~b1_val_t~0 1)) (.cse3 (< |old(~b1_ev~0)| 2)) (.cse4 (not (= |old(~z_val~0)| 0))) (.cse6 (< |old(~d0_val~0)| ~d0_val_t~0)) (.cse7 (< |old(~b1_val~0)| ~b1_val_t~0)) (.cse8 (< ~d1_val_t~0 1)) (.cse9 (< |old(~z_ev~0)| 2)) (.cse10 (< ~b0_val_t~0 1)) (.cse11 (< |old(~b0_val~0)| ~b0_val_t~0)) (.cse12 (not (= 0 ~z_val_t~0))) (.cse13 (< ~d0_val_t~0 1)) (.cse14 (< 0 ~comp_m1_i~0)) (.cse15 (< |old(~d1_val~0)| ~d1_val_t~0)) (.cse19 (< |old(~d1_ev~0)| 2)) (.cse16 (< |old(~b0_ev~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse1 .cse2 .cse4 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse17 .cse12 .cse13 .cse14 .cse15 .cse18 .cse19 .cse16) (or .cse0 .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse18 .cse16) (or (not (= ~comp_m1_st~0 0)) .cse0 (and (= ~b0_req_up~0 1) .cse20 .cse21 .cse22 (= ~d0_req_up~0 1) .cse23 (= ~b0_val~0 0) .cse24 .cse25 .cse26 .cse27 (= ~d1_req_up~0 1) .cse28 .cse29 (= 1 ~b1_req_up~0)) .cse2 .cse3 (not (= |old(~d0_req_up~0)| 1)) .cse4 .cse8 (not (= ~b0_val_t~0 1)) (not (= |old(~b0_req_up~0)| 1)) (not (= |old(~d1_req_up~0)| 1)) (not (= |old(~b0_val~0)| 0)) .cse9 (not (= |old(~b1_req_up~0)| 1)) .cse12 .cse13 .cse14 .cse19 .cse16) (or .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse17 .cse12 .cse13 .cse14 .cse15 .cse19 .cse16) (or .cse1 .cse2 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse17 .cse12 .cse13 .cse14 .cse15 .cse18 .cse16) (or .cse0 .cse1 .cse2 .cse4 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse18 .cse19 .cse16) (or .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse17 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse19 .cse16)))) [2023-11-28 20:24:10,128 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 142) no Hoare annotation was computed. [2023-11-28 20:24:10,128 INFO L899 garLoopResultBuilder]: For program point L137-2(lines 137 142) no Hoare annotation was computed. [2023-11-28 20:24:10,128 INFO L899 garLoopResultBuilder]: For program point L212-1(lines 211 249) no Hoare annotation was computed. [2023-11-28 20:24:10,128 INFO L899 garLoopResultBuilder]: For program point L233-1(lines 211 249) no Hoare annotation was computed. [2023-11-28 20:24:10,129 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 172) no Hoare annotation was computed. [2023-11-28 20:24:10,129 INFO L899 garLoopResultBuilder]: For program point L167-2(lines 167 172) no Hoare annotation was computed. [2023-11-28 20:24:10,129 INFO L899 garLoopResultBuilder]: For program point L374-1(lines 350 382) no Hoare annotation was computed. [2023-11-28 20:24:10,129 INFO L899 garLoopResultBuilder]: For program point L364-1(lines 353 381) no Hoare annotation was computed. [2023-11-28 20:24:10,129 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 350 382) the Hoare annotation is: (let ((.cse20 (= ~d1_ev~0 |old(~d1_ev~0)|)) (.cse24 (= ~b0_ev~0 |old(~b0_ev~0)|)) (.cse21 (= |old(~d0_ev~0)| ~d0_ev~0)) (.cse22 (= |old(~z_ev~0)| ~z_ev~0)) (.cse23 (= |old(~b1_ev~0)| ~b1_ev~0))) (let ((.cse1 (< |old(~b1_ev~0)| 2)) (.cse18 (< 0 |old(~d1_ev~0)|)) (.cse8 (< 0 |old(~d0_ev~0)|)) (.cse17 (< |old(~d0_ev~0)| 2)) (.cse2 (and .cse20 .cse24 .cse21 .cse22 .cse23)) (.cse25 (< 0 |old(~b1_ev~0)|)) (.cse14 (< |old(~d1_ev~0)| 2)) (.cse19 (not (= ~comp_m1_st~0 0))) (.cse0 (< ~b1_val_t~0 1)) (.cse3 (not (= ~z_val~0 0))) (.cse4 (< ~d1_val_t~0 1)) (.cse5 (< ~b0_val~0 ~b0_val_t~0)) (.cse6 (< |old(~z_ev~0)| 2)) (.cse7 (< ~b0_val_t~0 1)) (.cse9 (not (= 0 ~z_val_t~0))) (.cse10 (< ~d1_val~0 ~d1_val_t~0)) (.cse11 (< ~d0_val_t~0 1)) (.cse12 (< 0 ~comp_m1_i~0)) (.cse13 (< ~d0_val~0 ~d0_val_t~0)) (.cse15 (< |old(~b0_ev~0)| 2)) (.cse16 (< ~b1_val~0 ~b1_val_t~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse17 .cse0 .cse1 .cse2 .cse18 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (or .cse19 .cse0 .cse3 .cse4 .cse5 (and .cse20 (= ~b0_ev~0 1) .cse21 .cse22 .cse23) .cse6 .cse7 (not (= |old(~b0_ev~0)| 1)) .cse9 .cse10 .cse11 .cse12 .cse13 .cse16) (or .cse19 (not (= |old(~b1_ev~0)| 1)) .cse0 .cse3 .cse4 .cse5 .cse6 (and .cse20 .cse24 (= ~b1_ev~0 1) .cse21 .cse22) .cse7 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (or .cse19 (not (= |old(~d0_ev~0)| 1)) .cse0 (and .cse20 .cse24 (= ~d0_ev~0 1) .cse22 .cse23) .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (or .cse0 .cse1 .cse2 .cse18 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse16) (or .cse17 .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse25 .cse13 .cse14 .cse15 .cse16) (or .cse17 .cse0 .cse2 .cse18 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse12 .cse25 .cse13 .cse15 .cse16) (or .cse0 .cse2 .cse18 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse25 .cse13 .cse15 .cse16) (or .cse17 .cse0 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse12 .cse25 .cse13 .cse14 .cse15 .cse16) (or .cse19 .cse0 .cse3 .cse4 .cse5 .cse6 .cse7 .cse9 .cse10 .cse11 .cse12 .cse13 (not (= |old(~d1_ev~0)| 1)) .cse15 (and .cse24 .cse21 .cse22 (= ~d1_ev~0 1) .cse23) .cse16)))) [2023-11-28 20:24:10,129 INFO L899 garLoopResultBuilder]: For program point L354-1(lines 353 381) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L369-1(lines 353 381) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 350 382) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L359-1(lines 353 381) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L895 garLoopResultBuilder]: At program point L440(line 440) the Hoare annotation is: (let ((.cse7 (<= 2 ~d1_ev~0)) (.cse3 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= ~b1_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse18 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 2 ~b0_ev~0)) (.cse15 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L440-1(line 440) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L407(lines 407 412) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 60) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 51 101) no Hoare annotation was computed. [2023-11-28 20:24:10,130 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L895 garLoopResultBuilder]: At program point L432-1(lines 432 454) the Hoare annotation is: (let ((.cse7 (<= 2 ~d1_ev~0)) (.cse3 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= ~b1_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse18 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 2 ~b0_ev~0)) (.cse15 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 453) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point L61(lines 51 101) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 418 460) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 57) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L895 garLoopResultBuilder]: At program point L425(line 425) the Hoare annotation is: (and (<= ~comp_m1_i~0 0) (<= 2 ~z_ev~0) (= ~b0_req_up~0 1) (= 0 ~z_val_t~0) (= ~comp_m1_st~0 0) (<= 2 ~b1_ev~0) (<= 1 ~d0_val_t~0) (= ~b0_val_t~0 1) (<= 2 ~d1_ev~0) (= ~d0_req_up~0 1) (= ~b0_val~0 0) (<= 2 ~d0_ev~0) (<= 1 ~b1_val_t~0) (= ~z_val~0 0) (<= 2 ~b0_ev~0) (= ~d1_req_up~0 1) (<= 1 ~d1_val_t~0) (= 1 ~b1_req_up~0)) [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point L425-1(line 425) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point L79(lines 51 101) no Hoare annotation was computed. [2023-11-28 20:24:10,131 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:24:10,132 INFO L895 garLoopResultBuilder]: At program point L286(line 286) the Hoare annotation is: (let ((.cse7 (<= 2 ~d1_ev~0)) (.cse3 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= ~b1_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse18 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 2 ~b0_ev~0)) (.cse15 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,132 INFO L899 garLoopResultBuilder]: For program point L501(lines 501 507) no Hoare annotation was computed. [2023-11-28 20:24:10,132 INFO L899 garLoopResultBuilder]: For program point L501-2(lines 501 507) no Hoare annotation was computed. [2023-11-28 20:24:10,132 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 84) no Hoare annotation was computed. [2023-11-28 20:24:10,132 INFO L895 garLoopResultBuilder]: At program point L427(line 427) the Hoare annotation is: (let ((.cse3 (<= ~b1_ev~0 0)) (.cse7 (<= 2 ~d1_ev~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse18 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 1 ~d1_val_t~0)) (.cse15 (= ~b0_ev~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,132 INFO L895 garLoopResultBuilder]: At program point L427-1(line 427) the Hoare annotation is: (and (<= ~comp_m1_i~0 0) (<= 2 ~z_ev~0) (= 0 ~z_val_t~0) (= ~b0_ev~0 1) (<= ~d0_val_t~0 ~d0_val~0) (<= 1 ~d0_val_t~0) (<= 1 ~b0_val_t~0) (<= ~b1_val_t~0 ~b1_val~0) (<= ~b0_val_t~0 ~b0_val~0) (<= 1 ~b1_val_t~0) (= ~z_val~0 0) (<= ~d1_val_t~0 ~d1_val~0) (<= 1 ~d1_val_t~0)) [2023-11-28 20:24:10,132 INFO L895 garLoopResultBuilder]: At program point L295(lines 285 310) the Hoare annotation is: (let ((.cse7 (<= 2 ~d1_ev~0)) (.cse3 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= ~b1_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse18 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 2 ~b0_ev~0)) (.cse15 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,133 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 279 316) no Hoare annotation was computed. [2023-11-28 20:24:10,133 INFO L895 garLoopResultBuilder]: At program point L444(line 444) the Hoare annotation is: (let ((.cse3 (<= ~b1_ev~0 0)) (.cse18 (<= 2 ~b0_ev~0)) (.cse7 (<= 2 ~d1_ev~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse19 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 1 ~d1_val_t~0)) (.cse15 (= ~b0_ev~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse19 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse19 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse19 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse19 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse19 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse19 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse19 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse18 .cse14) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse19 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,133 INFO L895 garLoopResultBuilder]: At program point L444-1(line 444) the Hoare annotation is: (let ((.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse3 (<= ~d0_val_t~0 ~d0_val~0)) (.cse4 (<= 1 ~d0_val_t~0)) (.cse5 (<= 1 ~b0_val_t~0)) (.cse6 (<= ~b1_val_t~0 ~b1_val~0)) (.cse7 (<= ~b0_val_t~0 ~b0_val~0)) (.cse8 (<= 1 ~b1_val_t~0)) (.cse9 (= ~z_val~0 0)) (.cse10 (<= ~d1_val_t~0 ~d1_val~0)) (.cse11 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 (= ~b0_ev~0 1) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 (<= 2 ~b0_ev~0) .cse11))) [2023-11-28 20:24:10,133 INFO L895 garLoopResultBuilder]: At program point L428(line 428) the Hoare annotation is: (and (<= ~comp_m1_i~0 0) (<= 2 ~z_ev~0) (= 0 ~z_val_t~0) (= ~comp_m1_st~0 0) (= ~b0_ev~0 1) (<= ~d0_val_t~0 ~d0_val~0) (<= 1 ~d0_val_t~0) (<= 1 ~b0_val_t~0) (<= ~b1_val_t~0 ~b1_val~0) (<= ~b0_val_t~0 ~b0_val~0) (<= 1 ~b1_val_t~0) (= ~z_val~0 0) (<= ~d1_val_t~0 ~d1_val~0) (<= 1 ~d1_val_t~0)) [2023-11-28 20:24:10,133 INFO L899 garLoopResultBuilder]: For program point L73(lines 73 77) no Hoare annotation was computed. [2023-11-28 20:24:10,133 INFO L899 garLoopResultBuilder]: For program point L73-2(lines 51 101) no Hoare annotation was computed. [2023-11-28 20:24:10,133 INFO L899 garLoopResultBuilder]: For program point L288(line 288) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 259) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point L255-2(lines 251 263) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L895 garLoopResultBuilder]: At program point L445(line 445) the Hoare annotation is: (let ((.cse7 (<= 2 ~d1_ev~0)) (.cse18 (= ~comp_m1_st~0 0)) (.cse3 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= ~b1_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse19 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 2 ~b0_ev~0)) (.cse15 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse18 (= ~b0_ev~0 1) .cse4 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse15) (and .cse0 .cse1 .cse2 .cse18 .cse4 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse19 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse19 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse19 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse19 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point L91(lines 91 95) no Hoare annotation was computed. [2023-11-28 20:24:10,134 INFO L899 garLoopResultBuilder]: For program point L91-2(lines 88 96) no Hoare annotation was computed. [2023-11-28 20:24:10,135 INFO L895 garLoopResultBuilder]: At program point L405(line 405) the Hoare annotation is: (let ((.cse7 (<= 2 ~d1_ev~0)) (.cse3 (<= 2 ~b1_ev~0)) (.cse17 (<= ~d0_ev~0 0)) (.cse0 (<= ~comp_m1_i~0 0)) (.cse1 (<= 2 ~z_ev~0)) (.cse2 (= 0 ~z_val_t~0)) (.cse16 (<= ~b1_ev~0 0)) (.cse4 (<= ~d0_val_t~0 ~d0_val~0)) (.cse18 (<= ~d1_ev~0 0)) (.cse5 (<= 1 ~d0_val_t~0)) (.cse6 (<= 1 ~b0_val_t~0)) (.cse8 (<= ~b1_val_t~0 ~b1_val~0)) (.cse9 (<= 2 ~d0_ev~0)) (.cse10 (<= ~b0_val_t~0 ~b0_val~0)) (.cse11 (<= 1 ~b1_val_t~0)) (.cse12 (= ~z_val~0 0)) (.cse13 (<= ~d1_val_t~0 ~d1_val~0)) (.cse14 (<= 2 ~b0_ev~0)) (.cse15 (<= 1 ~d1_val_t~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse5 .cse6 .cse7 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse3 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse17 .cse4 .cse18 .cse5 .cse6 .cse8 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse2 .cse16 .cse4 .cse18 .cse5 .cse6 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15))) [2023-11-28 20:24:10,135 INFO L899 garLoopResultBuilder]: For program point L405-1(line 405) no Hoare annotation was computed. [2023-11-28 20:24:10,135 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 294) no Hoare annotation was computed. [2023-11-28 20:24:10,135 INFO L899 garLoopResultBuilder]: For program point L290-1(lines 285 310) no Hoare annotation was computed. [2023-11-28 20:24:10,135 INFO L899 garLoopResultBuilder]: For program point L414(lines 403 416) no Hoare annotation was computed. [2023-11-28 20:24:10,135 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 306) no Hoare annotation was computed. [2023-11-28 20:24:10,138 INFO L445 BasicCegarLoop]: Path program 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] [2023-11-28 20:24:10,139 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:24:10,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:24:10 BoogieIcfgContainer [2023-11-28 20:24:10,162 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:24:10,163 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:24:10,163 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:24:10,163 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:24:10,163 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:23:11" (3/4) ... [2023-11-28 20:24:10,165 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:24:10,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2023-11-28 20:24:10,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2023-11-28 20:24:10,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2023-11-28 20:24:10,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2023-11-28 20:24:10,169 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2023-11-28 20:24:10,179 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-28 20:24:10,179 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-28 20:24:10,180 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:24:10,180 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:24:10,287 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:24:10,288 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:24:10,288 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:24:10,288 INFO L158 Benchmark]: Toolchain (without parser) took 59605.35ms. Allocated memory was 127.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 89.4MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 382.4MB. Max. memory is 16.1GB. [2023-11-28 20:24:10,288 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:24:10,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.87ms. Allocated memory is still 127.9MB. Free memory was 89.0MB in the beginning and 75.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-28 20:24:10,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.58ms. Allocated memory is still 127.9MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:24:10,289 INFO L158 Benchmark]: Boogie Preprocessor took 46.42ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 71.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 20:24:10,290 INFO L158 Benchmark]: RCFGBuilder took 483.16ms. Allocated memory is still 127.9MB. Free memory was 71.0MB in the beginning and 49.3MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-28 20:24:10,290 INFO L158 Benchmark]: TraceAbstraction took 58601.92ms. Allocated memory was 127.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 48.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2023-11-28 20:24:10,290 INFO L158 Benchmark]: Witness Printer took 125.08ms. Allocated memory is still 1.8GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:24:10,292 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory is still 97.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.87ms. Allocated memory is still 127.9MB. Free memory was 89.0MB in the beginning and 75.6MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.58ms. Allocated memory is still 127.9MB. Free memory was 75.6MB in the beginning and 73.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.42ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 71.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.16ms. Allocated memory is still 127.9MB. Free memory was 71.0MB in the beginning and 49.3MB in the end (delta: 21.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 58601.92ms. Allocated memory was 127.9MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 48.9MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 125.08ms. Allocated memory is still 1.8GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.5s, OverallIterations: 34, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 16.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 14.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6047 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6001 mSDsluCounter, 10791 SdHoareTripleChecker+Invalid, 3.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6807 mSDsCounter, 696 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5788 IncrementalHoareTripleChecker+Invalid, 6484 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 696 mSolverCounterUnsat, 3984 mSDtfsCounter, 5788 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4245 GetRequests, 3861 SyntacticMatches, 4 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1462 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9614occurred in iteration=33, InterpolantAutomatonStates: 236, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.2s AutomataMinimizationTime, 34 MinimizatonAttempts, 7458 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 10741 PreInvPairs, 11047 NumberOfFragments, 6700 HoareAnnotationTreeSize, 10741 FomulaSimplifications, 7239 FormulaSimplificationTreeSizeReduction, 2.2s HoareSimplificationTime, 17 FomulaSimplificationsInter, 37640 FormulaSimplificationTreeSizeReductionInter, 11.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 6679 NumberOfCodeBlocks, 6626 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 6736 ConstructedInterpolants, 0 QuantifiedInterpolants, 15288 SizeOfPredicates, 10 NumberOfNonLiveVariables, 14397 ConjunctsInSsa, 147 ConjunctsInUnsatCore, 66 InterpolantComputations, 33 PerfectInterpolantSequences, 2079/2293 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t)) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t)) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_val_t <= d0_val)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (2 <= d1_ev)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (2 <= b1_ev)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_ev <= 0)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) || ((((((((((((((((comp_m1_i <= 0) && (2 <= z_ev)) && (0 == z_val_t)) && (b1_ev <= 0)) && (d0_val_t <= d0_val)) && (d1_ev <= 0)) && (1 <= d0_val_t)) && (1 <= b0_val_t)) && (b1_val_t <= b1_val)) && (2 <= d0_ev)) && (b0_val_t <= b0_val)) && (1 <= b1_val_t)) && (z_val == 0)) && (d1_val_t <= d1_val)) && (2 <= b0_ev)) && (1 <= d1_val_t))) RESULT: Ultimate proved your program to be correct! [2023-11-28 20:24:10,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_efba9df9-87b9-4290-b9e2-f362501ea84a/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE