This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:30:43,520 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:30:43,582 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 13:30:43,586 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:30:43,587 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:30:43,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:30:43,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:30:43,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:30:43,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:30:43,613 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:30:43,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:30:43,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:30:43,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:30:43,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:30:43,616 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:30:43,616 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:30:43,616 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:30:43,617 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:30:43,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:30:43,617 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:30:43,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:30:43,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:30:43,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:30:43,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:30:43,623 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:30:43,623 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:30:43,623 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:30:43,623 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:30:43,624 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:30:43,624 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:30:43,624 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:30:43,624 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:30:43,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:30:43,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:30:43,624 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:30:43,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:30:43,625 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:30:43,625 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:30:43,625 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:30:43,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:30:43,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:30:43,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:30:43,626 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:/storage/repos/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:30:43,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:30:43,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:30:43,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:30:43,851 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:30:43,852 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:30:43,853 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.p+sep-reducer.yml/witness-2.1.yml [2024-09-20 13:30:43,913 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:30:43,914 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:30:43,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c [2024-09-20 13:30:45,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:30:45,637 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:30:45,638 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c [2024-09-20 13:30:45,666 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/08e86de1e/53c4e9cc1f7b40a09461a745eaa7c9eb/FLAG02cf95d9b [2024-09-20 13:30:45,698 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/08e86de1e/53c4e9cc1f7b40a09461a745eaa7c9eb [2024-09-20 13:30:45,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:30:45,700 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-20 13:30:45,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:30:45,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:30:45,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:30:45,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:43" (1/2) ... [2024-09-20 13:30:45,716 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac115d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:30:45, skipping insertion in model container [2024-09-20 13:30:45,716 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:43" (1/2) ... [2024-09-20 13:30:45,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@53d9b0b2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:30:45, skipping insertion in model container [2024-09-20 13:30:45,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:45" (2/2) ... [2024-09-20 13:30:45,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac115d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:45, skipping insertion in model container [2024-09-20 13:30:45,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:45" (2/2) ... [2024-09-20 13:30:45,794 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:30:45,797 INFO L1541 ArrayList]: Location invariant before [L426-L461] (((\old(__return_1135) == __return_1135) && (((long long) main__i + 1) <= main__nlen)) && (0 <= main__i)) [2024-09-20 13:30:45,797 INFO L1541 ArrayList]: Location invariant before [L1060-L2567] ((\old(__return_1135) == __return_1135) && (0 <= main__i)) [2024-09-20 13:30:45,797 INFO L1541 ArrayList]: Location invariant before [L1579-L2489] ((\old(__return_1135) == __return_1135) && (0 <= main__i)) [2024-09-20 13:30:45,797 INFO L1541 ArrayList]: Location invariant before [L945-L980] (((\old(__return_1135) == __return_1135) && (((long long) main__i + 1) <= main__nlen)) && (0 <= main__i)) [2024-09-20 13:30:45,797 INFO L1541 ArrayList]: Location invariant before [L2303-L2334] (((\old(__return_1135) == __return_1135) && (((long long) main__i + 1) <= main__nlen)) && (0 <= main__i)) [2024-09-20 13:30:45,797 INFO L1541 ArrayList]: Location invariant before [L2098-L2411] ((\old(__return_1135) == __return_1135) && (0 <= main__i)) [2024-09-20 13:30:45,798 INFO L1541 ArrayList]: Location invariant before [L541-L2645] ((\old(__return_1135) == __return_1135) && (0 <= main__i)) [2024-09-20 13:30:45,798 INFO L1541 ArrayList]: Location invariant before [L2300-L2300] (((\old(__return_1135) == __return_1135) && (((long long) main__i + 1) <= main__nlen)) && (0 <= main__i)) [2024-09-20 13:30:45,798 INFO L1541 ArrayList]: Location invariant before [L1464-L1499] (((\old(__return_1135) == __return_1135) && (((long long) main__i + 1) <= main__nlen)) && (0 <= main__i)) [2024-09-20 13:30:45,798 INFO L1541 ArrayList]: Location invariant before [L1782-L2412] (((\old(__return_1135) == __return_1135) && (((long long) main__i + 1) <= main__nlen)) && (0 <= main__i)) [2024-09-20 13:30:45,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:30:46,145 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2024-09-20 13:30:46,169 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2024-09-20 13:30:46,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:30:46,199 INFO L200 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-20 13:30:46,301 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[34383,34396] Start Parsing Local [2024-09-20 13:30:46,314 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c[39106,39119] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-20 13:30:46,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:30:46,336 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:30:46,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46 WrapperNode [2024-09-20 13:30:46,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:30:46,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 13:30:46,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 13:30:46,338 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 13:30:46,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,360 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,405 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1609 [2024-09-20 13:30:46,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 13:30:46,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:30:46,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:30:46,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:30:46,427 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,460 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]. [2024-09-20 13:30:46,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,508 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:30:46,509 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:30:46,509 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:30:46,509 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:30:46,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (1/1) ... [2024-09-20 13:30:46,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:30:46,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:30:46,556 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 13:30:46,558 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 13:30:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:30:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:30:46,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:30:46,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:30:46,712 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:30:46,714 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:30:47,505 INFO L? ?]: Removed 576 outVars from TransFormulas that were not future-live. [2024-09-20 13:30:47,505 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:30:47,550 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:30:47,550 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:30:47,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:47 BoogieIcfgContainer [2024-09-20 13:30:47,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:30:47,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 13:30:47,554 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 13:30:47,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 13:30:47,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:43" (1/4) ... [2024-09-20 13:30:47,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c722a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:30:47, skipping insertion in model container [2024-09-20 13:30:47,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:45" (2/4) ... [2024-09-20 13:30:47,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c722a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:47, skipping insertion in model container [2024-09-20 13:30:47,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:46" (3/4) ... [2024-09-20 13:30:47,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158c722a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:47, skipping insertion in model container [2024-09-20 13:30:47,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:47" (4/4) ... [2024-09-20 13:30:47,560 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2024-09-20 13:30:47,572 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 13:30:47,573 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-09-20 13:30:47,612 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 13:30:47,617 INFO L336 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=None, 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;@65e5052c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 13:30:47,618 INFO L337 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-09-20 13:30:47,622 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 252 states have (on average 1.9841269841269842) internal successors, (500), 264 states have internal predecessors, (500), 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) [2024-09-20 13:30:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-20 13:30:47,628 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:47,629 INFO L216 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] [2024-09-20 13:30:47,629 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 9 more)] === [2024-09-20 13:30:47,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:47,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1780300936, now seen corresponding path program 1 times [2024-09-20 13:30:47,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:47,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552194432] [2024-09-20 13:30:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:47,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:30:48,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:48,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552194432] [2024-09-20 13:30:48,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552194432] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:48,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:48,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-20 13:30:48,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587460654] [2024-09-20 13:30:48,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:48,076 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-20 13:30:48,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:48,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-20 13:30:48,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:30:48,101 INFO L87 Difference]: Start difference. First operand has 265 states, 252 states have (on average 1.9841269841269842) internal successors, (500), 264 states have internal predecessors, (500), 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) Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-09-20 13:30:48,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:48,456 INFO L93 Difference]: Finished difference Result 263 states and 496 transitions. [2024-09-20 13:30:48,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-20 13:30:48,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-09-20 13:30:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:48,469 INFO L225 Difference]: With dead ends: 263 [2024-09-20 13:30:48,469 INFO L226 Difference]: Without dead ends: 259 [2024-09-20 13:30:48,470 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:30:48,472 INFO L434 NwaCegarLoop]: 274 mSDtfsCounter, 418 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:48,473 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 548 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 13:30:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-09-20 13:30:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2024-09-20 13:30:48,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 251 states have (on average 1.1792828685258965) internal successors, (296), 258 states have internal predecessors, (296), 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) [2024-09-20 13:30:48,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 296 transitions. [2024-09-20 13:30:48,503 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 296 transitions. Word has length 28 [2024-09-20 13:30:48,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:48,504 INFO L474 AbstractCegarLoop]: Abstraction has 259 states and 296 transitions. [2024-09-20 13:30:48,504 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-09-20 13:30:48,504 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 296 transitions. [2024-09-20 13:30:48,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-09-20 13:30:48,505 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:48,505 INFO L216 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] [2024-09-20 13:30:48,505 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 13:30:48,506 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 9 more)] === [2024-09-20 13:30:48,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:48,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1503342284, now seen corresponding path program 1 times [2024-09-20 13:30:48,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:48,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729347780] [2024-09-20 13:30:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:48,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:30:48,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:48,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729347780] [2024-09-20 13:30:48,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729347780] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:48,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:48,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-20 13:30:48,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560543417] [2024-09-20 13:30:48,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:48,680 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-20 13:30:48,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:48,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-20 13:30:48,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:30:48,681 INFO L87 Difference]: Start difference. First operand 259 states and 296 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-09-20 13:30:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:48,929 INFO L93 Difference]: Finished difference Result 258 states and 295 transitions. [2024-09-20 13:30:48,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-20 13:30:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-09-20 13:30:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:48,931 INFO L225 Difference]: With dead ends: 258 [2024-09-20 13:30:48,932 INFO L226 Difference]: Without dead ends: 258 [2024-09-20 13:30:48,932 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:30:48,933 INFO L434 NwaCegarLoop]: 235 mSDtfsCounter, 8 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:48,933 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 301 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:30:48,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2024-09-20 13:30:48,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2024-09-20 13:30:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 251 states have (on average 1.1752988047808766) internal successors, (295), 257 states have internal predecessors, (295), 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) [2024-09-20 13:30:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 295 transitions. [2024-09-20 13:30:48,948 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 295 transitions. Word has length 51 [2024-09-20 13:30:48,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:48,948 INFO L474 AbstractCegarLoop]: Abstraction has 258 states and 295 transitions. [2024-09-20 13:30:48,948 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-09-20 13:30:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 295 transitions. [2024-09-20 13:30:48,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-09-20 13:30:48,950 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:48,950 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:30:48,950 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-20 13:30:48,950 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 9 more)] === [2024-09-20 13:30:48,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:48,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1373469334, now seen corresponding path program 1 times [2024-09-20 13:30:48,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:48,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426849106] [2024-09-20 13:30:48,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:48,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:49,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:30:49,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:49,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426849106] [2024-09-20 13:30:49,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426849106] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:49,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:49,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 13:30:49,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271064681] [2024-09-20 13:30:49,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:49,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 13:30:49,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:49,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 13:30:49,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-20 13:30:49,099 INFO L87 Difference]: Start difference. First operand 258 states and 295 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-09-20 13:30:49,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:49,302 INFO L93 Difference]: Finished difference Result 253 states and 290 transitions. [2024-09-20 13:30:49,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-20 13:30:49,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2024-09-20 13:30:49,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:49,304 INFO L225 Difference]: With dead ends: 253 [2024-09-20 13:30:49,304 INFO L226 Difference]: Without dead ends: 253 [2024-09-20 13:30:49,305 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-09-20 13:30:49,305 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 410 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:49,306 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 83 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-20 13:30:49,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2024-09-20 13:30:49,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2024-09-20 13:30:49,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 251 states have (on average 1.155378486055777) internal successors, (290), 252 states have internal predecessors, (290), 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) [2024-09-20 13:30:49,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 290 transitions. [2024-09-20 13:30:49,312 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 290 transitions. Word has length 78 [2024-09-20 13:30:49,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:49,312 INFO L474 AbstractCegarLoop]: Abstraction has 253 states and 290 transitions. [2024-09-20 13:30:49,313 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-09-20 13:30:49,313 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 290 transitions. [2024-09-20 13:30:49,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-09-20 13:30:49,316 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:49,316 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:30:49,316 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-20 13:30:49,316 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 9 more)] === [2024-09-20 13:30:49,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:49,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1702941643, now seen corresponding path program 1 times [2024-09-20 13:30:49,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:49,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853881030] [2024-09-20 13:30:49,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:49,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:49,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:30:49,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:49,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853881030] [2024-09-20 13:30:49,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853881030] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:49,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:49,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-20 13:30:49,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28215854] [2024-09-20 13:30:49,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:49,562 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 13:30:49,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:49,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 13:30:49,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-20 13:30:49,563 INFO L87 Difference]: Start difference. First operand 253 states and 290 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-09-20 13:30:49,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:49,897 INFO L93 Difference]: Finished difference Result 251 states and 288 transitions. [2024-09-20 13:30:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-20 13:30:49,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2024-09-20 13:30:49,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:49,899 INFO L225 Difference]: With dead ends: 251 [2024-09-20 13:30:49,899 INFO L226 Difference]: Without dead ends: 251 [2024-09-20 13:30:49,899 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-20 13:30:49,900 INFO L434 NwaCegarLoop]: 79 mSDtfsCounter, 201 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:49,900 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 237 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-20 13:30:49,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2024-09-20 13:30:49,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2024-09-20 13:30:49,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.152) internal successors, (288), 250 states have internal predecessors, (288), 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) [2024-09-20 13:30:49,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 288 transitions. [2024-09-20 13:30:49,906 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 288 transitions. Word has length 137 [2024-09-20 13:30:49,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:49,906 INFO L474 AbstractCegarLoop]: Abstraction has 251 states and 288 transitions. [2024-09-20 13:30:49,906 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-09-20 13:30:49,906 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 288 transitions. [2024-09-20 13:30:49,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-09-20 13:30:49,909 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:49,909 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:30:49,910 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-20 13:30:49,910 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 9 more)] === [2024-09-20 13:30:49,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:49,910 INFO L85 PathProgramCache]: Analyzing trace with hash -84962141, now seen corresponding path program 1 times [2024-09-20 13:30:49,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:49,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585849899] [2024-09-20 13:30:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:49,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:50,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 13:30:50,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:50,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585849899] [2024-09-20 13:30:50,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585849899] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:50,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:50,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-20 13:30:50,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389983847] [2024-09-20 13:30:50,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:50,150 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 13:30:50,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:50,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 13:30:50,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-20 13:30:50,151 INFO L87 Difference]: Start difference. First operand 251 states and 288 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-09-20 13:30:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:50,547 INFO L93 Difference]: Finished difference Result 249 states and 286 transitions. [2024-09-20 13:30:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-20 13:30:50,548 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-09-20 13:30:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:50,548 INFO L225 Difference]: With dead ends: 249 [2024-09-20 13:30:50,548 INFO L226 Difference]: Without dead ends: 0 [2024-09-20 13:30:50,549 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-09-20 13:30:50,549 INFO L434 NwaCegarLoop]: 84 mSDtfsCounter, 212 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:50,549 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 246 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-20 13:30:50,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-20 13:30:50,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-20 13:30:50,550 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) [2024-09-20 13:30:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-20 13:30:50,550 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 141 [2024-09-20 13:30:50,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:50,550 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-20 13:30:50,551 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 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) [2024-09-20 13:30:50,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-20 13:30:50,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-20 13:30:50,553 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 12 remaining) [2024-09-20 13:30:50,553 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 12 remaining) [2024-09-20 13:30:50,553 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 12 remaining) [2024-09-20 13:30:50,553 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (4 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 12 remaining) [2024-09-20 13:30:50,554 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (0 of 12 remaining) [2024-09-20 13:30:50,555 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-20 13:30:50,557 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-09-20 13:30:50,558 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 13:30:50,560 INFO L469 ceAbstractionStarter]: Automizer considered 10 witness invariants [2024-09-20 13:30:50,560 INFO L470 ceAbstractionStarter]: WitnessConsidered=10 [2024-09-20 13:30:50,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:50 BoogieIcfgContainer [2024-09-20 13:30:50,561 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 13:30:50,561 INFO L158 Benchmark]: Toolchain (without parser) took 4861.67ms. Allocated memory was 146.8MB in the beginning and 266.3MB in the end (delta: 119.5MB). Free memory was 70.7MB in the beginning and 135.9MB in the end (delta: -65.2MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2024-09-20 13:30:50,561 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:30:50,561 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:30:50,562 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.30ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 70.6MB in the beginning and 131.0MB in the end (delta: -60.3MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-09-20 13:30:50,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.35ms. Allocated memory is still 192.9MB. Free memory was 131.0MB in the beginning and 123.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:30:50,562 INFO L158 Benchmark]: Boogie Preprocessor took 101.82ms. Allocated memory is still 192.9MB. Free memory was 123.7MB in the beginning and 116.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 13:30:50,562 INFO L158 Benchmark]: RCFGBuilder took 1042.14ms. Allocated memory is still 192.9MB. Free memory was 116.3MB in the beginning and 103.7MB in the end (delta: 12.6MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2024-09-20 13:30:50,563 INFO L158 Benchmark]: TraceAbstraction took 3006.60ms. Allocated memory was 192.9MB in the beginning and 266.3MB in the end (delta: 73.4MB). Free memory was 102.6MB in the beginning and 135.9MB in the end (delta: -33.3MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-09-20 13:30:50,564 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 95.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 117.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.30ms. Allocated memory was 146.8MB in the beginning and 192.9MB in the end (delta: 46.1MB). Free memory was 70.6MB in the beginning and 131.0MB in the end (delta: -60.3MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.35ms. Allocated memory is still 192.9MB. Free memory was 131.0MB in the beginning and 123.7MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.82ms. Allocated memory is still 192.9MB. Free memory was 123.7MB in the beginning and 116.3MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1042.14ms. Allocated memory is still 192.9MB. Free memory was 116.3MB in the beginning and 103.7MB in the end (delta: 12.6MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3006.60ms. Allocated memory was 192.9MB in the beginning and 266.3MB in the end (delta: 73.4MB). Free memory was 102.6MB in the beginning and 135.9MB in the end (delta: -33.3MB). Peak memory consumption was 41.2MB. 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: 426]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 541]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 945]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1060]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1464]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1579]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 1782]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 2003]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 2098]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 2300]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 2303]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 2312]: 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 1 procedures, 265 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1249 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1249 mSDsluCounter, 1415 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 660 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2221 IncrementalHoareTripleChecker+Invalid, 2351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 755 mSDtfsCounter, 2221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=0, InterpolantAutomatonStates: 22, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 430 ConstructedInterpolants, 0 QuantifiedInterpolants, 1976 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-20 13:30:50,595 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...