./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/dijkstra-u_unwindbound1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5189fb62 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/dijkstra-u_unwindbound1.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:24:26,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:24:26,957 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-13 05:24:26,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:24:26,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:24:26,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:24:26,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:24:26,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:24:26,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:24:26,990 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:24:26,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:24:26,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:24:26,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:24:26,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:24:26,992 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:24:26,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:24:26,994 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:24:26,994 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:24:26,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:24:26,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:24:26,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:24:26,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:24:26,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:24:26,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:24:26,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:24:26,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:24:26,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:24:26,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:24:26,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:24:26,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:24:26,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:24:26,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:24:26,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:24:26,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:24:26,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:24:26,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:24:26,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:24:26,998 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:24:26,998 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:24:26,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:24:26,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:24:26,999 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:24:27,000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:24:27,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:24:27,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:24:27,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:24:27,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:24:27,206 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:24:27,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2024-09-13 05:24:28,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:24:28,524 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:24:28,525 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c [2024-09-13 05:24:28,531 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a36a138b2/cb0a9d878a204732b09f03317484488d/FLAGfec5477b8 [2024-09-13 05:24:28,541 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a36a138b2/cb0a9d878a204732b09f03317484488d [2024-09-13 05:24:28,543 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:24:28,544 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:24:28,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/dijkstra-u_unwindbound1.yml/witness-2.1.yml [2024-09-13 05:24:28,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:24:28,591 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-13 05:24:28,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:24:28,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:24:28,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:24:28,598 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:24:28" (1/2) ... [2024-09-13 05:24:28,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acb8ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:24:28, skipping insertion in model container [2024-09-13 05:24:28,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:24:28" (1/2) ... [2024-09-13 05:24:28,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b7c95da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:24:28, skipping insertion in model container [2024-09-13 05:24:28,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:24:28" (2/2) ... [2024-09-13 05:24:28,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acb8ff6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28, skipping insertion in model container [2024-09-13 05:24:28,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:24:28" (2/2) ... [2024-09-13 05:24:28,611 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:24:28,611 INFO L1541 ArrayList]: Loop invariant at [L30-L35] ((\old(counter) == 0) && (((((p == 0) && (n == r)) && (1 <= counter)) && (h == 0)) || ((((p == 0) && (n == r)) && (counter == 0)) && (h == 0)))) [2024-09-13 05:24:28,611 INFO L1541 ArrayList]: Loop invariant at [L38-L56] (((((p == 0) && (n == r)) && (1 <= counter)) && (\old(counter) == 0)) && (h == 0)) [2024-09-13 05:24:28,612 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-13 05:24:28,612 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-13 05:24:28,612 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-13 05:24:28,629 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:24:28,752 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c[525,538] [2024-09-13 05:24:28,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:24:28,795 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-13 05:24:28,845 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/dijkstra-u_unwindbound1.c[525,538] Start Parsing Global Start Parsing Global Start Parsing Local Start Parsing Local [2024-09-13 05:24:28,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:24:28,883 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:24:28,883 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28 WrapperNode [2024-09-13 05:24:28,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:24:28,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-13 05:24:28,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-13 05:24:28,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-13 05:24:28,891 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,914 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2024-09-13 05:24:28,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-13 05:24:28,915 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:24:28,915 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:24:28,915 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:24:28,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,924 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,931 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-13 05:24:28,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:24:28,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:24:28,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:24:28,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:24:28,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (1/1) ... [2024-09-13 05:24:28,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:24:28,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:24:28,969 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) [2024-09-13 05:24:28,970 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 [2024-09-13 05:24:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:24:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 05:24:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:24:29,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:24:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-13 05:24:29,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-13 05:24:29,047 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:24:29,048 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:24:31,062 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 05:24:31,093 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2024-09-13 05:24:31,093 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:24:31,107 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:24:31,107 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-13 05:24:31,108 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:24:31 BoogieIcfgContainer [2024-09-13 05:24:31,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:24:31,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-13 05:24:31,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-13 05:24:31,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-13 05:24:31,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:24:28" (1/4) ... [2024-09-13 05:24:31,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55017f1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:24:31, skipping insertion in model container [2024-09-13 05:24:31,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:24:28" (2/4) ... [2024-09-13 05:24:31,113 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55017f1a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:24:31, skipping insertion in model container [2024-09-13 05:24:31,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:24:28" (3/4) ... [2024-09-13 05:24:31,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55017f1a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:24:31, skipping insertion in model container [2024-09-13 05:24:31,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:24:31" (4/4) ... [2024-09-13 05:24:31,115 INFO L112 eAbstractionObserver]: Analyzing ICFG dijkstra-u_unwindbound1.c [2024-09-13 05:24:31,127 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-13 05:24:31,127 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2024-09-13 05:24:31,165 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-13 05:24:31,170 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;@29ae7574, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-13 05:24:31,170 INFO L337 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2024-09-13 05:24:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 37 states have internal predecessors, (46), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-13 05:24:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2024-09-13 05:24:31,177 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:24:31,177 INFO L216 NwaCegarLoop]: trace histogram [1, 1] [2024-09-13 05:24:31,178 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:24:31,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:24:31,182 INFO L85 PathProgramCache]: Analyzing trace with hash 4498, now seen corresponding path program 1 times [2024-09-13 05:24:31,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:24:31,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827361224] [2024-09-13 05:24:31,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:24:31,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:24:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:24:31,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:24:31,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:24:31,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827361224] [2024-09-13 05:24:31,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827361224] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:24:31,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:24:31,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-09-13 05:24:31,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489184069] [2024-09-13 05:24:31,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:24:31,295 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:24:31,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:24:31,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:24:31,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:24:31,315 INFO L87 Difference]: Start difference. First operand has 48 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 37 states have internal predecessors, (46), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-09-13 05:24:31,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:24:31,361 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2024-09-13 05:24:31,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:24:31,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2024-09-13 05:24:31,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:24:31,369 INFO L225 Difference]: With dead ends: 48 [2024-09-13 05:24:31,369 INFO L226 Difference]: Without dead ends: 47 [2024-09-13 05:24:31,371 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:24:31,375 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:24:31,375 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 92 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:24:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-13 05:24:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2024-09-13 05:24:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 33 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-13 05:24:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2024-09-13 05:24:31,426 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 2 [2024-09-13 05:24:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:24:31,426 INFO L474 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2024-09-13 05:24:31,426 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2024-09-13 05:24:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2024-09-13 05:24:31,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-09-13 05:24:31,442 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:24:31,442 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-09-13 05:24:31,443 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-13 05:24:31,443 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:24:31,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:24:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash -139856550, now seen corresponding path program 1 times [2024-09-13 05:24:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:24:31,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882731235] [2024-09-13 05:24:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:24:31,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:24:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:24:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:24:31,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:24:31,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882731235] [2024-09-13 05:24:31,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882731235] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:24:31,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:24:31,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 05:24:31,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477351181] [2024-09-13 05:24:31,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:24:31,854 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:24:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:24:31,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:24:31,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:24:31,856 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-09-13 05:24:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:24:31,890 INFO L93 Difference]: Finished difference Result 46 states and 58 transitions. [2024-09-13 05:24:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:24:31,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2024-09-13 05:24:31,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:24:31,892 INFO L225 Difference]: With dead ends: 46 [2024-09-13 05:24:31,893 INFO L226 Difference]: Without dead ends: 46 [2024-09-13 05:24:31,893 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:24:31,894 INFO L434 NwaCegarLoop]: 49 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:24:31,895 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 93 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:24:31,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-09-13 05:24:31,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2024-09-13 05:24:31,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.3) internal successors, (39), 34 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-13 05:24:31,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2024-09-13 05:24:31,904 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 6 [2024-09-13 05:24:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:24:31,905 INFO L474 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2024-09-13 05:24:31,905 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-09-13 05:24:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2024-09-13 05:24:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-13 05:24:31,906 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:24:31,906 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:24:31,906 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-13 05:24:31,906 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:24:31,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:24:31,908 INFO L85 PathProgramCache]: Analyzing trace with hash -348153179, now seen corresponding path program 1 times [2024-09-13 05:24:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:24:31,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93593715] [2024-09-13 05:24:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:24:31,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:24:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:24:31,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:24:31,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:24:31,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93593715] [2024-09-13 05:24:31,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93593715] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:24:31,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:24:31,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:24:31,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216831052] [2024-09-13 05:24:31,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:24:31,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:24:31,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:24:31,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:24:31,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:24:31,962 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:24:31,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:24:31,998 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2024-09-13 05:24:31,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:24:31,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-09-13 05:24:31,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:24:32,001 INFO L225 Difference]: With dead ends: 47 [2024-09-13 05:24:32,001 INFO L226 Difference]: Without dead ends: 47 [2024-09-13 05:24:32,001 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:24:32,002 INFO L434 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:24:32,005 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:24:32,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-09-13 05:24:32,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-09-13 05:24:32,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 32 states have (on average 1.28125) internal successors, (41), 36 states have internal predecessors, (41), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-13 05:24:32,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2024-09-13 05:24:32,012 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 9 [2024-09-13 05:24:32,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:24:32,012 INFO L474 AbstractCegarLoop]: Abstraction has 47 states and 59 transitions. [2024-09-13 05:24:32,012 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:24:32,013 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions. [2024-09-13 05:24:32,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-13 05:24:32,013 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:24:32,013 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:24:32,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-13 05:24:32,013 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:24:32,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:24:32,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2092155110, now seen corresponding path program 1 times [2024-09-13 05:24:32,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:24:32,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959743979] [2024-09-13 05:24:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:24:32,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:24:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:24:32,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:24:32,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:24:32,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959743979] [2024-09-13 05:24:32,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959743979] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:24:32,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:24:32,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:24:32,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462307314] [2024-09-13 05:24:32,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:24:32,148 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 05:24:32,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:24:32,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 05:24:32,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:24:32,149 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-09-13 05:24:36,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:24:40,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:24:44,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:24:48,220 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:24:52,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:24:56,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:00,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:03,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:25:07,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:11,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:15,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:19,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:23,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:27,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:31,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:35,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:39,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:43,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:47,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:51,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:55,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:25:59,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:04,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:26:08,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:26:12,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:16,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:20,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:24,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:28,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:32,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:36,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:40,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:44,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:48,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:52,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:26:56,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:00,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:04,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:08,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:27:12,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:27:16,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:27:20,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:27:24,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:28,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:32,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:36,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:40,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:44,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:48,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:27:52,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:27:56,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:28:00,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:04,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:08,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:12,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:16,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:20,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:24,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:28,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:28:32,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:28:36,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:40,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:44,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:48,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:52,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:56,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:58,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:28:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:28:58,299 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2024-09-13 05:28:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 05:28:58,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-09-13 05:28:58,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:28:58,300 INFO L225 Difference]: With dead ends: 49 [2024-09-13 05:28:58,300 INFO L226 Difference]: Without dead ends: 46 [2024-09-13 05:28:58,300 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:28:58,301 INFO L434 NwaCegarLoop]: 33 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 65 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 265.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 65 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 266.1s IncrementalHoareTripleChecker+Time [2024-09-13 05:28:58,301 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 55 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 65 Unknown, 0 Unchecked, 266.1s Time] [2024-09-13 05:28:58,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-09-13 05:28:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2024-09-13 05:28:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-13 05:28:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2024-09-13 05:28:58,304 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 10 [2024-09-13 05:28:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:28:58,305 INFO L474 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2024-09-13 05:28:58,305 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-09-13 05:28:58,305 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2024-09-13 05:28:58,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-13 05:28:58,305 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:28:58,305 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:28:58,305 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-13 05:28:58,306 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:28:58,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:28:58,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1172447905, now seen corresponding path program 1 times [2024-09-13 05:28:58,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:28:58,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480968970] [2024-09-13 05:28:58,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:28:58,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:28:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-13 05:28:58,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357409324] [2024-09-13 05:28:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:28:58,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:28:58,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-13 05:28:58,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-13 05:28:58,331 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-13 05:28:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:28:58,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-13 05:28:58,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-13 05:28:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:28:58,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-13 05:28:58,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:28:58,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480968970] [2024-09-13 05:28:58,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-13 05:28:58,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357409324] [2024-09-13 05:28:58,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357409324] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:28:58,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:28:58,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:28:58,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494945768] [2024-09-13 05:28:58,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:28:58,607 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-13 05:28:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:28:58,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-13 05:28:58,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:28:58,607 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-09-13 05:29:02,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:06,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:10,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:14,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:18,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:29:22,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:26,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:30,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:34,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:38,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-09-13 05:29:42,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:46,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:50,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:54,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:54,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:29:54,857 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2024-09-13 05:29:54,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-13 05:29:54,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-09-13 05:29:54,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:29:54,861 INFO L225 Difference]: With dead ends: 38 [2024-09-13 05:29:54,861 INFO L226 Difference]: Without dead ends: 38 [2024-09-13 05:29:54,861 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-13 05:29:54,861 INFO L434 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.2s IncrementalHoareTripleChecker+Time [2024-09-13 05:29:54,862 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 86 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 14 Unknown, 0 Unchecked, 56.2s Time] [2024-09-13 05:29:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2024-09-13 05:29:54,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2024-09-13 05:29:54,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 28 states have internal predecessors, (32), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-09-13 05:29:54,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2024-09-13 05:29:54,865 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 13 [2024-09-13 05:29:54,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:29:54,865 INFO L474 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2024-09-13 05:29:54,865 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-09-13 05:29:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2024-09-13 05:29:54,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-13 05:29:54,866 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:29:54,866 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:29:54,878 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-13 05:29:55,068 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-13 05:29:55,068 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:29:55,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:29:55,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1172447869, now seen corresponding path program 1 times [2024-09-13 05:29:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:29:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092679490] [2024-09-13 05:29:55,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:29:55,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:29:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:29:55,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:29:55,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:29:55,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092679490] [2024-09-13 05:29:55,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092679490] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:29:55,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:29:55,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-13 05:29:55,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884353400] [2024-09-13 05:29:55,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:29:55,116 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-13 05:29:55,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:29:55,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-13 05:29:55,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-13 05:29:55,116 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-09-13 05:29:55,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:29:55,157 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2024-09-13 05:29:55,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-13 05:29:55,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2024-09-13 05:29:55,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:29:55,158 INFO L225 Difference]: With dead ends: 25 [2024-09-13 05:29:55,158 INFO L226 Difference]: Without dead ends: 25 [2024-09-13 05:29:55,159 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-13 05:29:55,161 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:29:55,161 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 46 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:29:55,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-13 05:29:55,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-09-13 05:29:55,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 05:29:55,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2024-09-13 05:29:55,165 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2024-09-13 05:29:55,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:29:55,165 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2024-09-13 05:29:55,165 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-09-13 05:29:55,165 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2024-09-13 05:29:55,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-13 05:29:55,166 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:29:55,166 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:29:55,166 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-13 05:29:55,166 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:29:55,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:29:55,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1720329836, now seen corresponding path program 1 times [2024-09-13 05:29:55,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:29:55,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026327940] [2024-09-13 05:29:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:29:55,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:29:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:29:55,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:29:55,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:29:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026327940] [2024-09-13 05:29:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026327940] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:29:55,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:29:55,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-13 05:29:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087660181] [2024-09-13 05:29:55,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:29:55,216 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:29:55,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:29:55,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:29:55,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:29:55,217 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:29:55,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:29:55,227 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2024-09-13 05:29:55,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:29:55,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-09-13 05:29:55,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:29:55,228 INFO L225 Difference]: With dead ends: 23 [2024-09-13 05:29:55,228 INFO L226 Difference]: Without dead ends: 23 [2024-09-13 05:29:55,228 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:29:55,229 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:29:55,229 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-13 05:29:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-09-13 05:29:55,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-09-13 05:29:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-13 05:29:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2024-09-13 05:29:55,233 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 16 [2024-09-13 05:29:55,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:29:55,233 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2024-09-13 05:29:55,233 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:29:55,233 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2024-09-13 05:29:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-13 05:29:55,233 INFO L208 NwaCegarLoop]: Found error trace [2024-09-13 05:29:55,233 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:29:55,233 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-13 05:29:55,234 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (and 14 more)] === [2024-09-13 05:29:55,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-13 05:29:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1720329675, now seen corresponding path program 1 times [2024-09-13 05:29:55,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-13 05:29:55,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427658847] [2024-09-13 05:29:55,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-13 05:29:55,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-13 05:29:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-13 05:29:55,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-13 05:29:55,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-13 05:29:55,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427658847] [2024-09-13 05:29:55,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427658847] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-13 05:29:55,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-13 05:29:55,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-13 05:29:55,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047508879] [2024-09-13 05:29:55,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-13 05:29:55,266 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-13 05:29:55,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-13 05:29:55,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-13 05:29:55,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:29:55,267 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:29:59,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-09-13 05:29:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-13 05:29:59,302 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2024-09-13 05:29:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-13 05:29:59,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-09-13 05:29:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-13 05:29:59,302 INFO L225 Difference]: With dead ends: 22 [2024-09-13 05:29:59,302 INFO L226 Difference]: Without dead ends: 0 [2024-09-13 05:29:59,302 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-13 05:29:59,303 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-09-13 05:29:59,303 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-09-13 05:29:59,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-13 05:29:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-13 05:29:59,303 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) [2024-09-13 05:29:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-13 05:29:59,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-09-13 05:29:59,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-13 05:29:59,304 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-13 05:29:59,304 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-13 05:29:59,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-13 05:29:59,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-13 05:29:59,306 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION (16 of 17 remaining) [2024-09-13 05:29:59,306 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONPRE_CONDITION (15 of 17 remaining) [2024-09-13 05:29:59,306 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (14 of 17 remaining) [2024-09-13 05:29:59,306 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 17 remaining) [2024-09-13 05:29:59,306 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 17 remaining) [2024-09-13 05:29:59,306 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONPRE_CONDITION (11 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONPRE_CONDITION (10 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION (9 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONPRE_CONDITION (8 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9REQUIRES_VIOLATIONPRE_CONDITION (7 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10REQUIRES_VIOLATIONPRE_CONDITION (6 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONPRE_CONDITION (5 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONPRE_CONDITION (4 of 17 remaining) [2024-09-13 05:29:59,307 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONPRE_CONDITION (3 of 17 remaining) [2024-09-13 05:29:59,308 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONPOST_CONDITION (2 of 17 remaining) [2024-09-13 05:29:59,308 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 17 remaining) [2024-09-13 05:29:59,308 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 17 remaining) [2024-09-13 05:29:59,308 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-13 05:29:59,310 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-09-13 05:29:59,311 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-13 05:29:59,313 INFO L469 ceAbstractionStarter]: Automizer considered 2 witness invariants [2024-09-13 05:29:59,313 INFO L470 ceAbstractionStarter]: WitnessConsidered=2 [2024-09-13 05:29:59,314 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:29:59 BoogieIcfgContainer [2024-09-13 05:29:59,314 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-13 05:29:59,314 INFO L158 Benchmark]: Toolchain (without parser) took 330723.10ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 85.7MB in the beginning and 150.4MB in the end (delta: -64.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2024-09-13 05:29:59,314 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 110.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:29:59,315 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 87.5MB in the end (delta: 162.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:29:59,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.16ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 85.4MB in the beginning and 199.8MB in the end (delta: -114.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-09-13 05:29:59,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.19ms. Allocated memory is still 228.6MB. Free memory was 199.8MB in the beginning and 197.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 05:29:59,315 INFO L158 Benchmark]: Boogie Preprocessor took 27.93ms. Allocated memory is still 228.6MB. Free memory was 197.7MB in the beginning and 196.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:29:59,315 INFO L158 Benchmark]: RCFGBuilder took 2164.67ms. Allocated memory is still 228.6MB. Free memory was 196.7MB in the beginning and 171.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-09-13 05:29:59,315 INFO L158 Benchmark]: TraceAbstraction took 328204.25ms. Allocated memory is still 228.6MB. Free memory was 171.5MB in the beginning and 150.4MB in the end (delta: 21.1MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-09-13 05:29:59,316 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 110.3MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 87.5MB in the end (delta: 162.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.16ms. Allocated memory was 159.4MB in the beginning and 228.6MB in the end (delta: 69.2MB). Free memory was 85.4MB in the beginning and 199.8MB in the end (delta: -114.3MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.19ms. Allocated memory is still 228.6MB. Free memory was 199.8MB in the beginning and 197.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.93ms. Allocated memory is still 228.6MB. Free memory was 197.7MB in the beginning and 196.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2164.67ms. Allocated memory is still 228.6MB. Free memory was 196.7MB in the beginning and 171.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 328204.25ms. Allocated memory is still 228.6MB. Free memory was 171.5MB in the beginning and 150.4MB in the end (delta: 21.1MB). Peak memory consumption was 20.0MB. 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: 20]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 8]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 8]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - PositiveResult [Line: 30]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 38]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 20]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - PositiveResult [Line: 14]: 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: 11]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 17 error locations. Started 1 CEGAR loops. OverallTime: 328.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 326.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 80 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 326.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 580 SdHoareTripleChecker+Invalid, 325.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 317 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 263 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 440 SizeOfPredicates, 1 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 17 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-13 05:29:59,430 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE