./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_3.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_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme --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 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:03:00,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:00,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:03:00,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:00,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:00,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:00,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:00,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:00,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:03:00,288 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:03:00,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:00,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:00,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:00,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:00,291 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:00,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:00,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:03:00,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:00,293 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:00,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:00,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:00,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:03:00,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:00,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:03:00,297 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:00,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:00,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:00,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:00,299 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:00,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:03:00,300 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:00,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:00,301 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:00,301 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:00,302 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:03:00,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:03:00,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:03:00,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:00,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:00,304 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:03:00,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:00,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:00,305 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_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 677126e8d6773c92cc337bfe0a3ec155f49f784424155f33a8c9c24ee0a42113 [2023-11-26 12:03:00,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:00,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:00,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:00,628 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:00,629 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:00,631 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-26 12:03:03,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:03,984 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:03,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c [2023-11-26 12:03:03,997 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/data/61fe88557/f428ef26d3bf4e0d8e47e045290a3a51/FLAG52d8018ce [2023-11-26 12:03:04,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/data/61fe88557/f428ef26d3bf4e0d8e47e045290a3a51 [2023-11-26 12:03:04,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:04,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:04,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:04,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:04,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:04,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,027 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31d2dd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04, skipping insertion in model container [2023-11-26 12:03:04,027 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,066 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:04,267 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_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-26 12:03:04,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:04,390 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:04,405 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_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/sv-benchmarks/c/systemc/pc_sfifo_3.cil.c[640,653] [2023-11-26 12:03:04,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:04,475 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:04,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04 WrapperNode [2023-11-26 12:03:04,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:04,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:04,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:04,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:04,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,532 INFO L138 Inliner]: procedures = 31, calls = 35, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 227 [2023-11-26 12:03:04,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:04,533 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:04,534 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:04,534 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:04,546 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,563 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,588 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]. [2023-11-26 12:03:04,588 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,589 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:04,623 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:04,623 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:04,623 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:04,624 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2023-11-26 12:03:04,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:04,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:04,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:04,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:04,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-11-26 12:03:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-11-26 12:03:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2023-11-26 12:03:04,698 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2023-11-26 12:03:04,698 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-26 12:03:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-26 12:03:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-26 12:03:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-26 12:03:04,699 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-26 12:03:04,699 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-26 12:03:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-26 12:03:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-26 12:03:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:03:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-26 12:03:04,700 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-26 12:03:04,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2023-11-26 12:03:04,703 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2023-11-26 12:03:04,805 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:04,807 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:05,180 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume !(1 == ~q_free~0); [2023-11-26 12:03:05,180 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume 1 == ~q_free~0;~c_dr_st~0 := 2;~c_dr_pc~0 := 2;~a_t~0 := do_read_c_~a~0#1; [2023-11-26 12:03:05,217 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:05,318 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:05,319 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 12:03:05,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:05 BoogieIcfgContainer [2023-11-26 12:03:05,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:05,333 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:05,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:05,337 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:05,337 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:04" (1/3) ... [2023-11-26 12:03:05,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f4fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:05, skipping insertion in model container [2023-11-26 12:03:05,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (2/3) ... [2023-11-26 12:03:05,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f4fffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:05, skipping insertion in model container [2023-11-26 12:03:05,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:05" (3/3) ... [2023-11-26 12:03:05,341 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_3.cil.c [2023-11-26 12:03:05,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:05,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:03:05,429 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:05,435 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;@27a49885, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:05,435 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:03:05,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:03:05,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 12:03:05,452 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:05,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:05,454 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:05,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash -999542766, now seen corresponding path program 1 times [2023-11-26 12:03:05,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:05,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394388149] [2023-11-26 12:03:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:05,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 12:03:06,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 12:03:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:06,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:06,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394388149] [2023-11-26 12:03:06,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394388149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:06,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:06,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:03:06,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665758200] [2023-11-26 12:03:06,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:06,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:03:06,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:03:06,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:03:06,205 INFO L87 Difference]: Start difference. First operand has 104 states, 78 states have (on average 1.6282051282051282) internal successors, (127), 82 states have internal predecessors, (127), 16 states have call successors, (16), 8 states have call predecessors, (16), 8 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:07,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:07,272 INFO L93 Difference]: Finished difference Result 340 states and 532 transitions. [2023-11-26 12:03:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 12:03:07,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-11-26 12:03:07,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:07,296 INFO L225 Difference]: With dead ends: 340 [2023-11-26 12:03:07,296 INFO L226 Difference]: Without dead ends: 239 [2023-11-26 12:03:07,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:03:07,308 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 451 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:07,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 370 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 12:03:07,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-11-26 12:03:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 202. [2023-11-26 12:03:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 160 states have internal predecessors, (232), 29 states have call successors, (29), 15 states have call predecessors, (29), 16 states have return successors, (32), 28 states have call predecessors, (32), 27 states have call successors, (32) [2023-11-26 12:03:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 293 transitions. [2023-11-26 12:03:07,440 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 293 transitions. Word has length 56 [2023-11-26 12:03:07,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:07,441 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 293 transitions. [2023-11-26 12:03:07,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:07,442 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 293 transitions. [2023-11-26 12:03:07,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 12:03:07,446 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:07,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:07,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:03:07,447 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:07,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:07,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1351431762, now seen corresponding path program 1 times [2023-11-26 12:03:07,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:07,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401641089] [2023-11-26 12:03:07,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:07,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 12:03:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 12:03:07,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:07,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:07,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:07,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401641089] [2023-11-26 12:03:07,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401641089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:07,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:07,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:03:07,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099874243] [2023-11-26 12:03:07,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:07,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:03:07,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:07,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:03:07,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:03:07,699 INFO L87 Difference]: Start difference. First operand 202 states and 293 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:08,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:08,625 INFO L93 Difference]: Finished difference Result 563 states and 823 transitions. [2023-11-26 12:03:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 12:03:08,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2023-11-26 12:03:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:08,635 INFO L225 Difference]: With dead ends: 563 [2023-11-26 12:03:08,636 INFO L226 Difference]: Without dead ends: 375 [2023-11-26 12:03:08,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-26 12:03:08,646 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 429 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:08,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 615 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:03:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2023-11-26 12:03:08,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 303. [2023-11-26 12:03:08,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 235 states have (on average 1.476595744680851) internal successors, (347), 241 states have internal predecessors, (347), 42 states have call successors, (42), 22 states have call predecessors, (42), 25 states have return successors, (53), 42 states have call predecessors, (53), 40 states have call successors, (53) [2023-11-26 12:03:08,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 442 transitions. [2023-11-26 12:03:08,737 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 442 transitions. Word has length 56 [2023-11-26 12:03:08,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:08,738 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 442 transitions. [2023-11-26 12:03:08,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:08,743 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 442 transitions. [2023-11-26 12:03:08,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 12:03:08,753 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:08,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:08,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:03:08,755 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:08,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2050049196, now seen corresponding path program 1 times [2023-11-26 12:03:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134069292] [2023-11-26 12:03:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:08,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:08,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:08,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 12:03:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 12:03:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:08,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:08,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134069292] [2023-11-26 12:03:08,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134069292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:08,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:08,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:03:08,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700322403] [2023-11-26 12:03:08,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:08,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:03:08,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:08,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:03:08,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:03:08,955 INFO L87 Difference]: Start difference. First operand 303 states and 442 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-26 12:03:10,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:10,128 INFO L93 Difference]: Finished difference Result 1171 states and 1716 transitions. [2023-11-26 12:03:10,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 12:03:10,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 56 [2023-11-26 12:03:10,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:10,137 INFO L225 Difference]: With dead ends: 1171 [2023-11-26 12:03:10,137 INFO L226 Difference]: Without dead ends: 870 [2023-11-26 12:03:10,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-11-26 12:03:10,144 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 890 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:10,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 735 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-26 12:03:10,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2023-11-26 12:03:10,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 774. [2023-11-26 12:03:10,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 774 states, 610 states have (on average 1.4229508196721312) internal successors, (868), 624 states have internal predecessors, (868), 92 states have call successors, (92), 63 states have call predecessors, (92), 71 states have return successors, (117), 88 states have call predecessors, (117), 90 states have call successors, (117) [2023-11-26 12:03:10,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 774 states to 774 states and 1077 transitions. [2023-11-26 12:03:10,262 INFO L78 Accepts]: Start accepts. Automaton has 774 states and 1077 transitions. Word has length 56 [2023-11-26 12:03:10,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:10,262 INFO L495 AbstractCegarLoop]: Abstraction has 774 states and 1077 transitions. [2023-11-26 12:03:10,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2023-11-26 12:03:10,263 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states and 1077 transitions. [2023-11-26 12:03:10,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 12:03:10,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:10,265 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:10,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:03:10,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:10,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:10,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1834223676, now seen corresponding path program 1 times [2023-11-26 12:03:10,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:10,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090223061] [2023-11-26 12:03:10,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:10,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:03:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 12:03:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 12:03:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:10,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:10,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090223061] [2023-11-26 12:03:10,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090223061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:10,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:10,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:03:10,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594421039] [2023-11-26 12:03:10,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:10,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:03:10,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:10,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:03:10,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:03:10,506 INFO L87 Difference]: Start difference. First operand 774 states and 1077 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 12:03:11,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:11,118 INFO L93 Difference]: Finished difference Result 1622 states and 2270 transitions. [2023-11-26 12:03:11,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 12:03:11,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 57 [2023-11-26 12:03:11,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:11,125 INFO L225 Difference]: With dead ends: 1622 [2023-11-26 12:03:11,125 INFO L226 Difference]: Without dead ends: 856 [2023-11-26 12:03:11,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-26 12:03:11,129 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 126 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:11,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 515 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:03:11,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2023-11-26 12:03:11,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 790. [2023-11-26 12:03:11,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 622 states have (on average 1.4083601286173633) internal successors, (876), 636 states have internal predecessors, (876), 92 states have call successors, (92), 63 states have call predecessors, (92), 75 states have return successors, (121), 92 states have call predecessors, (121), 90 states have call successors, (121) [2023-11-26 12:03:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1089 transitions. [2023-11-26 12:03:11,213 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1089 transitions. Word has length 57 [2023-11-26 12:03:11,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:11,213 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 1089 transitions. [2023-11-26 12:03:11,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 12:03:11,214 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1089 transitions. [2023-11-26 12:03:11,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 12:03:11,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:11,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:11,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:03:11,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:11,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:11,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1906610234, now seen corresponding path program 1 times [2023-11-26 12:03:11,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:11,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044337750] [2023-11-26 12:03:11,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:11,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:11,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:03:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 12:03:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-26 12:03:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:11,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:11,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044337750] [2023-11-26 12:03:11,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044337750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:11,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:11,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:03:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005736770] [2023-11-26 12:03:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:11,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:03:11,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:11,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:03:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:03:11,367 INFO L87 Difference]: Start difference. First operand 790 states and 1089 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-26 12:03:12,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:12,732 INFO L93 Difference]: Finished difference Result 2983 states and 4212 transitions. [2023-11-26 12:03:12,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 12:03:12,733 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 57 [2023-11-26 12:03:12,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:12,741 INFO L225 Difference]: With dead ends: 2983 [2023-11-26 12:03:12,741 INFO L226 Difference]: Without dead ends: 1158 [2023-11-26 12:03:12,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2023-11-26 12:03:12,747 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 767 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:12,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [785 Valid, 903 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 12:03:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2023-11-26 12:03:12,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1040. [2023-11-26 12:03:12,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 800 states have (on average 1.35375) internal successors, (1083), 816 states have internal predecessors, (1083), 132 states have call successors, (132), 91 states have call predecessors, (132), 107 states have return successors, (167), 134 states have call predecessors, (167), 130 states have call successors, (167) [2023-11-26 12:03:12,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1382 transitions. [2023-11-26 12:03:12,860 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1382 transitions. Word has length 57 [2023-11-26 12:03:12,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:12,861 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1382 transitions. [2023-11-26 12:03:12,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-26 12:03:12,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1382 transitions. [2023-11-26 12:03:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 12:03:12,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:12,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:12,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:03:12,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:12,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash 2045842353, now seen corresponding path program 1 times [2023-11-26 12:03:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:12,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259391028] [2023-11-26 12:03:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:12,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:12,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:03:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 12:03:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:03:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:13,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259391028] [2023-11-26 12:03:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259391028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:13,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:13,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 12:03:13,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020908586] [2023-11-26 12:03:13,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:13,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 12:03:13,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:13,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 12:03:13,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 12:03:13,043 INFO L87 Difference]: Start difference. First operand 1040 states and 1382 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 12:03:13,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:13,703 INFO L93 Difference]: Finished difference Result 2220 states and 2984 transitions. [2023-11-26 12:03:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:03:13,703 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2023-11-26 12:03:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:13,711 INFO L225 Difference]: With dead ends: 2220 [2023-11-26 12:03:13,712 INFO L226 Difference]: Without dead ends: 1188 [2023-11-26 12:03:13,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2023-11-26 12:03:13,719 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 121 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:13,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 480 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 12:03:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2023-11-26 12:03:13,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1088. [2023-11-26 12:03:13,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 836 states have (on average 1.3385167464114833) internal successors, (1119), 852 states have internal predecessors, (1119), 132 states have call successors, (132), 91 states have call predecessors, (132), 119 states have return successors, (179), 146 states have call predecessors, (179), 130 states have call successors, (179) [2023-11-26 12:03:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1430 transitions. [2023-11-26 12:03:13,826 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1430 transitions. Word has length 58 [2023-11-26 12:03:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:13,827 INFO L495 AbstractCegarLoop]: Abstraction has 1088 states and 1430 transitions. [2023-11-26 12:03:13,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 12:03:13,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1430 transitions. [2023-11-26 12:03:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 12:03:13,829 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:13,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:13,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:03:13,830 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:13,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash -2108576333, now seen corresponding path program 1 times [2023-11-26 12:03:13,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:13,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292213353] [2023-11-26 12:03:13,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:13,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:03:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 12:03:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:14,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:03:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:14,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:14,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292213353] [2023-11-26 12:03:14,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292213353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:14,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:14,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:03:14,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695899476] [2023-11-26 12:03:14,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:03:14,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:14,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:03:14,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:03:14,054 INFO L87 Difference]: Start difference. First operand 1088 states and 1430 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:14,931 INFO L93 Difference]: Finished difference Result 2133 states and 2816 transitions. [2023-11-26 12:03:14,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 12:03:14,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-11-26 12:03:14,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:14,939 INFO L225 Difference]: With dead ends: 2133 [2023-11-26 12:03:14,939 INFO L226 Difference]: Without dead ends: 1053 [2023-11-26 12:03:14,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2023-11-26 12:03:14,945 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 440 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:14,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 410 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:03:14,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-11-26 12:03:15,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 882. [2023-11-26 12:03:15,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 882 states, 681 states have (on average 1.327459618208517) internal successors, (904), 695 states have internal predecessors, (904), 105 states have call successors, (105), 73 states have call predecessors, (105), 95 states have return successors, (143), 114 states have call predecessors, (143), 103 states have call successors, (143) [2023-11-26 12:03:15,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1152 transitions. [2023-11-26 12:03:15,027 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1152 transitions. Word has length 58 [2023-11-26 12:03:15,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:15,029 INFO L495 AbstractCegarLoop]: Abstraction has 882 states and 1152 transitions. [2023-11-26 12:03:15,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:15,030 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1152 transitions. [2023-11-26 12:03:15,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 12:03:15,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:15,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:15,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:03:15,031 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:15,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:15,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1368742513, now seen corresponding path program 1 times [2023-11-26 12:03:15,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:15,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924354367] [2023-11-26 12:03:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:15,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:03:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 12:03:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:03:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:15,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:15,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924354367] [2023-11-26 12:03:15,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924354367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:15,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:15,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:03:15,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929591964] [2023-11-26 12:03:15,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:15,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:03:15,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:15,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:03:15,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:03:15,147 INFO L87 Difference]: Start difference. First operand 882 states and 1152 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:15,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:15,716 INFO L93 Difference]: Finished difference Result 2696 states and 3572 transitions. [2023-11-26 12:03:15,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:03:15,716 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2023-11-26 12:03:15,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:15,729 INFO L225 Difference]: With dead ends: 2696 [2023-11-26 12:03:15,729 INFO L226 Difference]: Without dead ends: 1823 [2023-11-26 12:03:15,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2023-11-26 12:03:15,733 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 405 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:15,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 271 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:03:15,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1823 states. [2023-11-26 12:03:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1823 to 1715. [2023-11-26 12:03:15,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1307 states have (on average 1.297628156082632) internal successors, (1696), 1334 states have internal predecessors, (1696), 212 states have call successors, (212), 145 states have call predecessors, (212), 195 states have return successors, (335), 237 states have call predecessors, (335), 210 states have call successors, (335) [2023-11-26 12:03:15,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2243 transitions. [2023-11-26 12:03:15,922 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2243 transitions. Word has length 58 [2023-11-26 12:03:15,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:15,923 INFO L495 AbstractCegarLoop]: Abstraction has 1715 states and 2243 transitions. [2023-11-26 12:03:15,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 4 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-11-26 12:03:15,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2243 transitions. [2023-11-26 12:03:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 12:03:15,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:03:15,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:15,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:03:15,926 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:03:15,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1945360166, now seen corresponding path program 1 times [2023-11-26 12:03:15,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:15,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349039141] [2023-11-26 12:03:15,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:15,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:03:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-26 12:03:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:16,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:03:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:16,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:03:16,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:16,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 12:03:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:16,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-26 12:03:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:16,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:16,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349039141] [2023-11-26 12:03:16,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349039141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:16,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:16,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:03:16,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983091729] [2023-11-26 12:03:16,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:16,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:16,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:16,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:16,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:16,018 INFO L87 Difference]: Start difference. First operand 1715 states and 2243 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 12:03:16,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:03:16,362 INFO L93 Difference]: Finished difference Result 3394 states and 4520 transitions. [2023-11-26 12:03:16,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:03:16,362 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2023-11-26 12:03:16,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:03:16,363 INFO L225 Difference]: With dead ends: 3394 [2023-11-26 12:03:16,363 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:03:16,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:03:16,372 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 244 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:03:16,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 155 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:03:16,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:03:16,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:03:16,373 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) [2023-11-26 12:03:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:03:16,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-26 12:03:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:03:16,374 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:03:16,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-26 12:03:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:03:16,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:03:16,376 INFO L805 garLoopResultBuilder]: Registering result SAFE for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:03:16,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:03:16,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:03:24,648 INFO L895 garLoopResultBuilder]: At program point L385(line 385) the Hoare annotation is: (let ((.cse0 (and (= |old(~p_dw_st~0)| ~p_dw_st~0) (= ~c_dr_st~0 |old(~c_dr_st~0)|)))) (and (or (not (= ~c_dr_pc~0 0)) .cse0) (or .cse0 (not (= ~c_dr_pc~0 1))))) [2023-11-26 12:03:24,648 INFO L895 garLoopResultBuilder]: At program point L387-2(lines 387 391) the Hoare annotation is: (let ((.cse0 (not (= ~c_dr_pc~0 0))) (.cse1 (= |old(~p_dw_st~0)| ~p_dw_st~0)) (.cse2 (= ~c_dr_st~0 |old(~c_dr_st~0)|)) (.cse4 (= activate_threads_~tmp~1 0)) (.cse3 (= ~p_dw_pc~0 1)) (.cse5 (not (= ~q_read_ev~0 2)))) (and (or .cse0 (and .cse1 .cse2) (= ~p_dw_st~0 0)) (or .cse0 .cse2 (not (= |old(~p_dw_st~0)| 0))) (or .cse0 .cse3 (and .cse1 .cse4) .cse5) (or (and .cse1 .cse2 .cse4) .cse3 (not (= ~c_dr_pc~0 1)) .cse5))) [2023-11-26 12:03:24,648 INFO L899 garLoopResultBuilder]: For program point L385-1(line 385) no Hoare annotation was computed. [2023-11-26 12:03:24,648 INFO L899 garLoopResultBuilder]: For program point L395(lines 395 399) no Hoare annotation was computed. [2023-11-26 12:03:24,648 INFO L899 garLoopResultBuilder]: For program point activate_threadsEXIT(lines 379 403) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 379 403) the Hoare annotation is: (let ((.cse0 (and (= |old(~p_dw_st~0)| ~p_dw_st~0) (= ~c_dr_st~0 |old(~c_dr_st~0)|)))) (and (or (not (= ~c_dr_pc~0 0)) .cse0) (or .cse0 (not (= ~c_dr_pc~0 1))))) [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point L395-2(lines 379 403) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 391) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point exists_runnable_threadEXIT(lines 287 306) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point L303(lines 290 305) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 287 306) the Hoare annotation is: true [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 300) no Hoare annotation was computed. [2023-11-26 12:03:24,649 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 301) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 104) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L95-2(lines 94 118) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L116(lines 94 118) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L106(lines 106 111) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 91 119) the Hoare annotation is: true [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 105 114) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point is_do_read_c_triggeredEXIT(lines 91 119) no Hoare annotation was computed. [2023-11-26 12:03:24,650 INFO L899 garLoopResultBuilder]: For program point L316-1(lines 307 324) no Hoare annotation was computed. [2023-11-26 12:03:24,651 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 307 324) the Hoare annotation is: (let ((.cse0 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or (not (= ~c_dr_pc~0 0)) .cse0))) [2023-11-26 12:03:24,651 INFO L899 garLoopResultBuilder]: For program point L311-1(lines 310 323) no Hoare annotation was computed. [2023-11-26 12:03:24,651 INFO L899 garLoopResultBuilder]: For program point fire_delta_eventsEXIT(lines 307 324) no Hoare annotation was computed. [2023-11-26 12:03:24,651 INFO L899 garLoopResultBuilder]: For program point L258-1(lines 254 268) no Hoare annotation was computed. [2023-11-26 12:03:24,651 INFO L899 garLoopResultBuilder]: For program point update_channelsEXIT(lines 254 268) no Hoare annotation was computed. [2023-11-26 12:03:24,651 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 254 268) the Hoare annotation is: (let ((.cse0 (and (= ~q_ev~0 |old(~q_ev~0)|) (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0) (= ~q_req_up~0 |old(~q_req_up~0)|)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or .cse0 (not (= ~c_dr_pc~0 0))))) [2023-11-26 12:03:24,651 INFO L899 garLoopResultBuilder]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2023-11-26 12:03:24,651 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point L36-2(lines 35 50) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point reset_delta_eventsEXIT(lines 325 342) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point L334-1(lines 325 342) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 325 342) the Hoare annotation is: (let ((.cse0 (and (= ~q_write_ev~0 |old(~q_write_ev~0)|) (= |old(~q_read_ev~0)| ~q_read_ev~0)))) (and (or .cse0 (not (= ~c_dr_pc~0 1))) (or (not (= ~c_dr_pc~0 0)) .cse0))) [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point L329-1(lines 328 341) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point L514-1(line 514) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point L415(lines 415 419) no Hoare annotation was computed. [2023-11-26 12:03:24,652 INFO L899 garLoopResultBuilder]: For program point L415-1(lines 410 450) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L349(lines 349 356) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L349-2(lines 345 360) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 470) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 246) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L152(lines 152 160) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point do_write_p_returnLabel#1(lines 145 193) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point start_simulation_returnLabel#1(lines 476 534) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L895 garLoopResultBuilder]: At program point L499(line 499) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L499-1(line 499) no Hoare annotation was computed. [2023-11-26 12:03:24,653 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2023-11-26 12:03:24,654 INFO L899 garLoopResultBuilder]: For program point L202(lines 202 206) no Hoare annotation was computed. [2023-11-26 12:03:24,654 INFO L895 garLoopResultBuilder]: At program point L484(line 484) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~p_dw_st~0 0) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,654 INFO L899 garLoopResultBuilder]: For program point L484-1(line 484) no Hoare annotation was computed. [2023-11-26 12:03:24,654 INFO L895 garLoopResultBuilder]: At program point L435(lines 410 450) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,654 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2023-11-26 12:03:24,654 INFO L899 garLoopResultBuilder]: For program point L155(lines 155 159) no Hoare annotation was computed. [2023-11-26 12:03:24,654 INFO L899 garLoopResultBuilder]: For program point L370-1(lines 361 378) no Hoare annotation was computed. [2023-11-26 12:03:24,655 INFO L895 garLoopResultBuilder]: At program point L486(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,655 INFO L895 garLoopResultBuilder]: At program point L486-1(line 486) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,655 INFO L899 garLoopResultBuilder]: For program point L420(lines 410 450) no Hoare annotation was computed. [2023-11-26 12:03:24,655 INFO L895 garLoopResultBuilder]: At program point L503(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,655 INFO L895 garLoopResultBuilder]: At program point L503-1(line 503) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,655 INFO L895 garLoopResultBuilder]: At program point L239(line 239) the Hoare annotation is: false [2023-11-26 12:03:24,655 INFO L895 garLoopResultBuilder]: At program point L487(line 487) the Hoare annotation is: (and (= ~p_dw_pc~0 0) (= ~q_req_up~0 0) (= ~q_write_ev~0 2) (= ~q_read_ev~0 2) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,655 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L895 garLoopResultBuilder]: At program point L504(line 504) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point L273-2(lines 272 285) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L895 garLoopResultBuilder]: At program point L505(line 505) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point L472(lines 461 474) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 446) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point L523(lines 523 527) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 431) no Hoare annotation was computed. [2023-11-26 12:03:24,656 INFO L899 garLoopResultBuilder]: For program point $Ultimate##36(lines 171 179) no Hoare annotation was computed. [2023-11-26 12:03:24,657 INFO L895 garLoopResultBuilder]: At program point L491-1(lines 491 528) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,657 INFO L899 garLoopResultBuilder]: For program point do_read_c_returnLabel#1(lines 195 253) no Hoare annotation was computed. [2023-11-26 12:03:24,657 INFO L899 garLoopResultBuilder]: For program point L508(line 508) no Hoare annotation was computed. [2023-11-26 12:03:24,657 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: false [2023-11-26 12:03:24,657 INFO L902 garLoopResultBuilder]: At program point L244-1(lines 210 247) the Hoare annotation is: true [2023-11-26 12:03:24,657 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:03:24,657 INFO L899 garLoopResultBuilder]: For program point L278-1(lines 269 286) no Hoare annotation was computed. [2023-11-26 12:03:24,657 INFO L899 garLoopResultBuilder]: For program point eval_returnLabel#1(lines 404 456) no Hoare annotation was computed. [2023-11-26 12:03:24,657 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 519) no Hoare annotation was computed. [2023-11-26 12:03:24,658 INFO L899 garLoopResultBuilder]: For program point L510-2(lines 510 519) no Hoare annotation was computed. [2023-11-26 12:03:24,658 INFO L895 garLoopResultBuilder]: At program point L411(line 411) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,658 INFO L895 garLoopResultBuilder]: At program point L164-1(lines 164 187) the Hoare annotation is: (let ((.cse0 (= ~c_dr_pc~0 1)) (.cse2 (= ~q_req_up~0 1)) (.cse1 (not (= ~p_dw_pc~0 1))) (.cse3 (= ~c_dr_pc~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse0) (and .cse2 .cse3) (and .cse1 .cse3))) [2023-11-26 12:03:24,658 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2023-11-26 12:03:24,658 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 161) no Hoare annotation was computed. [2023-11-26 12:03:24,658 INFO L895 garLoopResultBuilder]: At program point L463(line 463) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,658 INFO L899 garLoopResultBuilder]: For program point L463-1(line 463) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 207) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 369) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L365-2(lines 364 377) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L895 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (or (= ~c_dr_pc~0 1) (= ~c_dr_pc~0 0)) [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L66-2(lines 65 89) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L87(lines 65 89) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point is_do_write_p_triggeredEXIT(lines 62 90) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 82) no Hoare annotation was computed. [2023-11-26 12:03:24,659 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 85) no Hoare annotation was computed. [2023-11-26 12:03:24,660 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 62 90) the Hoare annotation is: true [2023-11-26 12:03:24,660 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 72) no Hoare annotation was computed. [2023-11-26 12:03:24,660 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2023-11-26 12:03:24,660 INFO L899 garLoopResultBuilder]: For program point errorEXIT(lines 15 22) no Hoare annotation was computed. [2023-11-26 12:03:24,660 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 15 22) the Hoare annotation is: true [2023-11-26 12:03:24,660 INFO L899 garLoopResultBuilder]: For program point errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-26 12:03:24,664 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:24,666 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:03:24,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:24 BoogieIcfgContainer [2023-11-26 12:03:24,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:03:24,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:03:24,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:03:24,681 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:03:24,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:05" (3/4) ... [2023-11-26 12:03:24,684 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:03:24,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure activate_threads [2023-11-26 12:03:24,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure exists_runnable_thread [2023-11-26 12:03:24,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_read_c_triggered [2023-11-26 12:03:24,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fire_delta_events [2023-11-26 12:03:24,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure update_channels [2023-11-26 12:03:24,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reset_delta_events [2023-11-26 12:03:24,689 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_do_write_p_triggered [2023-11-26 12:03:24,690 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure error [2023-11-26 12:03:24,699 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-26 12:03:24,700 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-26 12:03:24,701 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 12:03:24,701 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:03:24,834 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:03:24,835 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:03:24,835 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:03:24,835 INFO L158 Benchmark]: Toolchain (without parser) took 20818.51ms. Allocated memory was 161.5MB in the beginning and 490.7MB in the end (delta: 329.3MB). Free memory was 115.7MB in the beginning and 292.3MB in the end (delta: -176.6MB). Peak memory consumption was 153.0MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,836 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:03:24,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.99ms. Allocated memory is still 161.5MB. Free memory was 115.7MB in the beginning and 101.4MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.33ms. Allocated memory is still 161.5MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,837 INFO L158 Benchmark]: Boogie Preprocessor took 88.47ms. Allocated memory is still 161.5MB. Free memory was 99.3MB in the beginning and 96.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,837 INFO L158 Benchmark]: RCFGBuilder took 707.56ms. Allocated memory is still 161.5MB. Free memory was 96.8MB in the beginning and 127.6MB in the end (delta: -30.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,838 INFO L158 Benchmark]: TraceAbstraction took 19346.77ms. Allocated memory was 161.5MB in the beginning and 490.7MB in the end (delta: 329.3MB). Free memory was 126.8MB in the beginning and 300.7MB in the end (delta: -173.9MB). Peak memory consumption was 300.7MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,838 INFO L158 Benchmark]: Witness Printer took 153.93ms. Allocated memory is still 490.7MB. Free memory was 300.7MB in the beginning and 292.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:03:24,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 59.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.99ms. Allocated memory is still 161.5MB. Free memory was 115.7MB in the beginning and 101.4MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.33ms. Allocated memory is still 161.5MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.47ms. Allocated memory is still 161.5MB. Free memory was 99.3MB in the beginning and 96.8MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 707.56ms. Allocated memory is still 161.5MB. Free memory was 96.8MB in the beginning and 127.6MB in the end (delta: -30.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 19346.77ms. Allocated memory was 161.5MB in the beginning and 490.7MB in the end (delta: 329.3MB). Free memory was 126.8MB in the beginning and 300.7MB in the end (delta: -173.9MB). Peak memory consumption was 300.7MB. Max. memory is 16.1GB. * Witness Printer took 153.93ms. Allocated memory is still 490.7MB. Free memory was 300.7MB in the beginning and 292.3MB in the end (delta: 8.4MB). 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 9 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3954 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3873 mSDsluCounter, 4454 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3474 mSDsCounter, 977 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5245 IncrementalHoareTripleChecker+Invalid, 6222 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 977 mSolverCounterUnsat, 980 mSDtfsCounter, 5245 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1715occurred in iteration=8, InterpolantAutomatonStates: 131, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 768 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 1574 PreInvPairs, 2017 NumberOfFragments, 381 HoareAnnotationTreeSize, 1574 FomulaSimplifications, 299571 FormulaSimplificationTreeSizeReduction, 5.9s HoareSimplificationTime, 28 FomulaSimplificationsInter, 14918 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 515 NumberOfCodeBlocks, 515 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 506 ConstructedInterpolants, 0 QuantifiedInterpolants, 1074 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: ((c_dr_pc == 1) || (c_dr_pc == 0)) - InvariantResult [Line: 210]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((c_dr_pc == 1) || (c_dr_pc == 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((c_dr_pc == 1) && !((p_dw_pc == 1))) || ((q_req_up == 1) && (c_dr_pc == 1))) || ((q_req_up == 1) && (c_dr_pc == 0))) || (!((p_dw_pc == 1)) && (c_dr_pc == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-26 12:03:24,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6dcbe51d-81d9-4817-8ba3-dce88bfa7e87/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE