./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/pipeline.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/pipeline.cil-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 c42f0f019aa30bac52b753d657fd0a7a27ad0fcef5ea61d179259276789b8861 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:13:21,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:13:21,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:13:21,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:13:21,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:13:21,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:13:21,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:13:21,730 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:13:21,730 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:13:21,730 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:13:21,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:13:21,730 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:13:21,730 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:13:21,731 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:13:21,731 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:13:21,731 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:13:21,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:13:21,732 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 -> c42f0f019aa30bac52b753d657fd0a7a27ad0fcef5ea61d179259276789b8861 [2025-02-07 21:13:22,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:13:22,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:13:22,082 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:13:22,082 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:13:22,083 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:13:22,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/pipeline.cil-2.c [2025-02-07 21:13:23,352 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de9f3a1ff/766e2e1267bd43269a52bb6e93067241/FLAGffc56e99e [2025-02-07 21:13:23,595 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:13:23,596 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-2.c [2025-02-07 21:13:23,604 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de9f3a1ff/766e2e1267bd43269a52bb6e93067241/FLAGffc56e99e [2025-02-07 21:13:23,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/de9f3a1ff/766e2e1267bd43269a52bb6e93067241 [2025-02-07 21:13:23,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:13:23,915 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:13:23,916 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:13:23,916 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:13:23,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:13:23,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:13:23" (1/1) ... [2025-02-07 21:13:23,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12783d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:23, skipping insertion in model container [2025-02-07 21:13:23,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:13:23" (1/1) ... [2025-02-07 21:13:23,942 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:13:24,036 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-2.c[640,653] [2025-02-07 21:13:24,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:13:24,095 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:13:24,105 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/systemc/pipeline.cil-2.c[640,653] [2025-02-07 21:13:24,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:13:24,154 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:13:24,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24 WrapperNode [2025-02-07 21:13:24,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:13:24,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:13:24,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:13:24,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:13:24,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,168 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,184 INFO L138 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 417 [2025-02-07 21:13:24,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:13:24,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:13:24,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:13:24,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:13:24,190 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,204 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]. [2025-02-07 21:13:24,205 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,205 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,215 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,215 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,216 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:13:24,222 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:13:24,222 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:13:24,223 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:13:24,223 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (1/1) ... [2025-02-07 21:13:24,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:13:24,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:13:24,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 21:13:24,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 21:13:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:13:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:13:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2025-02-07 21:13:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2025-02-07 21:13:24,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:13:24,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:13:24,360 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:13:24,361 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:13:24,593 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L605: assume 0 == ~main_in1_ev~0;~main_in1_ev~0 := 1; [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L605: assume !(0 == ~main_in1_ev~0); [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L506: havoc eval_#t~nondet4#1, eval_#t~nondet5#1, eval_#t~nondet6#1, eval_#t~nondet7#1, eval_#t~nondet8#1, eval_~tmp~0#1, eval_~tmp___0~0#1, eval_~tmp___1~0#1, eval_~tmp___2~0#1, eval_~tmp___3~0#1;assume { :end_inline_eval } true;~kernel_st~0#1 := 2; [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L630: assume 0 == ~main_dbl_ev~0;~main_dbl_ev~0 := 1; [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L630: assume !(0 == ~main_dbl_ev~0); [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L564: assume 1 == ~main_dbl_req_up~0; [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L564: assume !(1 == ~main_dbl_req_up~0); [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L531: assume 1 == ~main_sum_req_up~0; [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L531: assume !(1 == ~main_sum_req_up~0); [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L176: havoc N_generate_~a~0#1, N_generate_~b~0#1;assume { :end_inline_N_generate } true; [2025-02-07 21:13:24,594 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L655: assume 1 == ~main_clk_pos_edge~0;~N_generate_st~0 := 0; [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L655: assume !(1 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L680: assume 1 == ~main_in1_ev~0;~main_in1_ev~0 := 2; [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L680: assume !(1 == ~main_in1_ev~0); [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L705: assume 1 == ~main_dbl_ev~0;~main_dbl_ev~0 := 2; [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L705: assume !(1 == ~main_dbl_ev~0); [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730: assume 0 == ~N_generate_st~0; [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L730: assume !(0 == ~N_generate_st~0); [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L565: assume ~main_dbl_val~0 != ~main_dbl_val_t~0;~main_dbl_val~0 := ~main_dbl_val_t~0;~main_dbl_ev~0 := 0; [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L565: assume !(~main_dbl_val~0 != ~main_dbl_val_t~0); [2025-02-07 21:13:24,595 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L532: assume ~main_sum_val~0 != ~main_sum_val_t~0;~main_sum_val~0 := ~main_sum_val_t~0;~main_sum_ev~0 := 0; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L532: assume !(~main_sum_val~0 != ~main_sum_val_t~0); [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L590: assume 1 == ~main_clk_val~0;~main_clk_pos_edge~0 := 0;~main_clk_neg_edge~0 := 2; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L590: assume !(1 == ~main_clk_val~0);~main_clk_neg_edge~0 := 0;~main_clk_pos_edge~0 := 2; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L615: assume 0 == ~main_sum_ev~0;~main_sum_ev~0 := 1; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L615: assume !(0 == ~main_sum_ev~0); [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L582: ~main_zero_req_up~0 := 0; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L549: ~main_diff_req_up~0 := 0; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L516: ~main_in1_req_up~0 := 0; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739: assume 0 == ~S3_zero_st~0; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739: assume !(0 == ~S3_zero_st~0); [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L640: assume 0 == ~main_clk_ev~0;~main_clk_ev~0 := 1; [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L640: assume !(0 == ~main_clk_ev~0); [2025-02-07 21:13:24,596 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L665: assume 1 == ~main_clk_pos_edge~0;~S2_presdbl_st~0 := 0; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L665: assume !(1 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L690: assume 1 == ~main_sum_ev~0;~main_sum_ev~0 := 2; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L690: assume !(1 == ~main_sum_ev~0); [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L236: assume { :end_inline_D_print } true; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: assume 1 == ~main_clk_ev~0;~main_clk_ev~0 := 2; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L715: assume !(1 == ~main_clk_ev~0); [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: assume 1 == ~main_zero_req_up~0; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L575: assume !(1 == ~main_zero_req_up~0); [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: assume 1 == ~main_diff_req_up~0; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L542: assume !(1 == ~main_diff_req_up~0); [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L509: assume 1 == ~main_in1_req_up~0; [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L509: assume !(1 == ~main_in1_req_up~0); [2025-02-07 21:13:24,597 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L600: ~main_clk_req_up~0 := 0; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L625: assume 0 == ~main_pres_ev~0;~main_pres_ev~0 := 1; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L625: assume !(0 == ~main_pres_ev~0); [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L650: assume 0 == ~main_clk_neg_edge~0;~main_clk_neg_edge~0 := 1; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L650: assume !(0 == ~main_clk_neg_edge~0); [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L675: assume 1 == ~main_clk_pos_edge~0;~D_print_st~0 := 0; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L675: assume !(1 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L576: assume ~main_zero_val~0 != ~main_zero_val_t~0;~main_zero_val~0 := ~main_zero_val_t~0;~main_zero_ev~0 := 0; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L576: assume !(~main_zero_val~0 != ~main_zero_val_t~0); [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L543: assume ~main_diff_val~0 != ~main_diff_val_t~0;~main_diff_val~0 := ~main_diff_val_t~0;~main_diff_ev~0 := 0; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L543: assume !(~main_diff_val~0 != ~main_diff_val_t~0); [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L510: assume ~main_in1_val~0 != ~main_in1_val_t~0;~main_in1_val~0 := ~main_in1_val_t~0;~main_in1_ev~0 := 0; [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L510: assume !(~main_in1_val~0 != ~main_in1_val_t~0); [2025-02-07 21:13:24,598 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: assume 0 == ~S1_addsub_st~0; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: assume !(0 == ~S1_addsub_st~0); [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L221: havoc S3_zero_~a~3#1, S3_zero_~b~3#1;assume { :end_inline_S3_zero } true; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L700: assume 1 == ~main_pres_ev~0;~main_pres_ev~0 := 2; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L700: assume !(1 == ~main_pres_ev~0); [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: assume 1 == ~main_clk_neg_edge~0;~main_clk_neg_edge~0 := 2; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: assume !(1 == ~main_clk_neg_edge~0); [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L560: ~main_pres_req_up~0 := 0; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L527: ~main_in2_req_up~0 := 0; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742: assume 0 == ~D_print_st~0; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742: assume !(0 == ~D_print_st~0); [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L610: assume 0 == ~main_in2_ev~0;~main_in2_ev~0 := 1; [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L610: assume !(0 == ~main_in2_ev~0); [2025-02-07 21:13:24,599 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L635: assume 0 == ~main_zero_ev~0;~main_zero_ev~0 := 1; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L635: assume !(0 == ~main_zero_ev~0); [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L660: assume 1 == ~main_clk_pos_edge~0;~S1_addsub_st~0 := 0; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L660: assume !(1 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L206: havoc S2_presdbl_~a~2#1, S2_presdbl_~b~2#1, S2_presdbl_~c~0#1, S2_presdbl_~d~0#1;assume { :end_inline_S2_presdbl } true; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L685: assume 1 == ~main_in2_ev~0;~main_in2_ev~0 := 2; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L685: assume !(1 == ~main_in2_ev~0); [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L586: assume 1 == ~main_clk_req_up~0; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L586: assume !(1 == ~main_clk_req_up~0); [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L553: assume 1 == ~main_pres_req_up~0; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L553: assume !(1 == ~main_pres_req_up~0); [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L520: assume 1 == ~main_in2_req_up~0; [2025-02-07 21:13:24,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L520: assume !(1 == ~main_in2_req_up~0); [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L710: assume 1 == ~main_zero_ev~0;~main_zero_ev~0 := 2; [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L710: assume !(1 == ~main_zero_ev~0); [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L620: assume 0 == ~main_diff_ev~0;~main_diff_ev~0 := 1; [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L620: assume !(0 == ~main_diff_ev~0); [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L587: assume ~main_clk_val~0 != ~main_clk_val_t~0;~main_clk_val~0 := ~main_clk_val_t~0;~main_clk_ev~0 := 0; [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L587: assume !(~main_clk_val~0 != ~main_clk_val_t~0); [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L554: assume ~main_pres_val~0 != ~main_pres_val_t~0;~main_pres_val~0 := ~main_pres_val_t~0;~main_pres_ev~0 := 0; [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L554: assume !(~main_pres_val~0 != ~main_pres_val_t~0); [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L521: assume ~main_in2_val~0 != ~main_in2_val_t~0;~main_in2_val~0 := ~main_in2_val_t~0;~main_in2_ev~0 := 0; [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L521: assume !(~main_in2_val~0 != ~main_in2_val_t~0); [2025-02-07 21:13:24,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L645: assume 0 == ~main_clk_pos_edge~0;~main_clk_pos_edge~0 := 1; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L645: assume !(0 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: assume 0 == ~S2_presdbl_st~0; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L736: assume !(0 == ~S2_presdbl_st~0); [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L191: havoc S1_addsub_~a~1#1, S1_addsub_~b~1#1;assume { :end_inline_S1_addsub } true; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L670: assume 1 == ~main_clk_pos_edge~0;~S3_zero_st~0 := 0; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L670: assume !(1 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L604: ~kernel_st~0#1 := 3; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L571: ~main_dbl_req_up~0 := 0; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L538: ~main_sum_req_up~0 := 0; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L695: assume 1 == ~main_diff_ev~0;~main_diff_ev~0 := 2; [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L695: assume !(1 == ~main_diff_ev~0); [2025-02-07 21:13:24,602 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720: assume 1 == ~main_clk_pos_edge~0;~main_clk_pos_edge~0 := 2; [2025-02-07 21:13:24,603 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L720: assume !(1 == ~main_clk_pos_edge~0); [2025-02-07 21:13:24,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L806: assume { :end_inline_error } true; [2025-02-07 21:13:24,646 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-02-07 21:13:24,646 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:13:24,652 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:13:24,652 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:13:24,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:13:24 BoogieIcfgContainer [2025-02-07 21:13:24,653 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:13:24,654 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:13:24,654 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:13:24,657 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:13:24,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:13:23" (1/3) ... [2025-02-07 21:13:24,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4966eaeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:13:24, skipping insertion in model container [2025-02-07 21:13:24,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:13:24" (2/3) ... [2025-02-07 21:13:24,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4966eaeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:13:24, skipping insertion in model container [2025-02-07 21:13:24,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:13:24" (3/3) ... [2025-02-07 21:13:24,659 INFO L128 eAbstractionObserver]: Analyzing ICFG pipeline.cil-2.c [2025-02-07 21:13:24,668 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:13:24,670 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pipeline.cil-2.c that has 2 procedures, 97 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-02-07 21:13:24,709 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:13:24,718 INFO L333 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, 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;@5023f96c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:13:24,718 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 21:13:24,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 83 states have (on average 1.819277108433735) internal successors, (151), 93 states have internal predecessors, (151), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-07 21:13:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-07 21:13:24,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:13:24,727 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:13:24,727 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:13:24,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:13:24,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1446832762, now seen corresponding path program 1 times [2025-02-07 21:13:24,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:13:24,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643061567] [2025-02-07 21:13:24,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:13:24,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:13:24,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-07 21:13:24,819 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-07 21:13:24,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:13:24,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:13:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-02-07 21:13:25,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:13:25,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643061567] [2025-02-07 21:13:25,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643061567] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-07 21:13:25,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715237511] [2025-02-07 21:13:25,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:13:25,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-07 21:13:25,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:13:25,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-07 21:13:25,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-07 21:13:25,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-07 21:13:25,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-07 21:13:25,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:13:25,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:13:25,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 683 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 21:13:25,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 21:13:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-07 21:13:25,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 21:13:25,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715237511] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:13:25,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-07 21:13:25,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2025-02-07 21:13:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445130804] [2025-02-07 21:13:25,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:13:25,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 21:13:25,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:13:25,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 21:13:25,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 21:13:25,272 INFO L87 Difference]: Start difference. First operand has 97 states, 83 states have (on average 1.819277108433735) internal successors, (151), 93 states have internal predecessors, (151), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 21:13:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:13:25,292 INFO L93 Difference]: Finished difference Result 176 states and 294 transitions. [2025-02-07 21:13:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 21:13:25,293 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 92 [2025-02-07 21:13:25,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:13:25,296 INFO L225 Difference]: With dead ends: 176 [2025-02-07 21:13:25,296 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 21:13:25,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 21:13:25,300 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 21:13:25,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:13:25,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 21:13:25,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 21:13:25,311 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) [2025-02-07 21:13:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 21:13:25,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2025-02-07 21:13:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:13:25,314 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 21:13:25,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 43.5) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 21:13:25,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 21:13:25,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:13:25,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 21:13:25,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-07 21:13:25,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-07 21:13:25,519 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 21:13:25,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 21:13:25,535 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:13:25,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:13:25 BoogieIcfgContainer [2025-02-07 21:13:25,544 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:13:25,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:13:25,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:13:25,545 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:13:25,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:13:24" (3/4) ... [2025-02-07 21:13:25,546 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:13:25,548 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure start_simulation [2025-02-07 21:13:25,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-07 21:13:25,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-07 21:13:25,556 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:13:25,557 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:13:25,624 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:13:25,625 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:13:25,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:13:25,626 INFO L158 Benchmark]: Toolchain (without parser) took 1710.33ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 58.7MB in the end (delta: 51.1MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2025-02-07 21:13:25,626 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:13:25,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.19ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 93.3MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:13:25,627 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.13ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:13:25,629 INFO L158 Benchmark]: Boogie Preprocessor took 37.41ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 89.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:13:25,630 INFO L158 Benchmark]: IcfgBuilder took 430.36ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 57.9MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-07 21:13:25,630 INFO L158 Benchmark]: TraceAbstraction took 889.68ms. Allocated memory is still 142.6MB. Free memory was 57.9MB in the beginning and 67.8MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:13:25,630 INFO L158 Benchmark]: Witness Printer took 80.28ms. Allocated memory is still 142.6MB. Free memory was 67.8MB in the beginning and 58.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:13:25,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 201.3MB. Free memory is still 127.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.19ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 93.3MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.13ms. Allocated memory is still 142.6MB. Free memory was 93.3MB in the beginning and 91.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.41ms. Allocated memory is still 142.6MB. Free memory was 90.6MB in the beginning and 89.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 430.36ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 57.9MB in the end (delta: 31.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 889.68ms. Allocated memory is still 142.6MB. Free memory was 57.9MB in the beginning and 67.8MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.28ms. Allocated memory is still 142.6MB. Free memory was 67.8MB in the beginning and 58.7MB in the end (delta: 9.1MB). 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 2 procedures, 97 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 137 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 137 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 683 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 52/84 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 795]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-02-07 21:13:25,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE