This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m
[2024-09-20 13:31:50,731 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 13:31:50,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-20 13:31:50,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 13:31:50,807 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 13:31:50,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 13:31:50,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 13:31:50,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 13:31:50,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 13:31:50,843 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 13:31:50,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 13:31:50,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 13:31:50,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 13:31:50,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 13:31:50,845 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 13:31:50,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 13:31:50,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 13:31:50,845 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 13:31:50,846 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-20 13:31:50,846 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 13:31:50,850 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 13:31:50,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 13:31:50,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 13:31:50,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 13:31:50,851 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 13:31:50,852 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 13:31:50,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 13:31:50,852 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 13:31:50,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 13:31:50,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 13:31:50,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 13:31:50,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 13:31:50,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:31:50,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 13:31:50,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 13:31:50,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 13:31:50,854 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-20 13:31:50,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-20 13:31:50,855 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 13:31:50,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 13:31:50,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 13:31:50,856 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 13:31:50,856 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/automizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-20 13:31:51,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 13:31:51,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 13:31:51,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 13:31:51,106 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-20 13:31:51,107 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-20 13:31:51,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/sum_by_3.yml/witness-2.1.yml
[2024-09-20 13:31:51,167 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 13:31:51,167 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 13:31:51,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/sum_by_3.c
[2024-09-20 13:31:52,515 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 13:31:52,702 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 13:31:52,703 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/sum_by_3.c
[2024-09-20 13:31:52,709 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/7ce09185b/cee41374eb744dd387ee6aaaeacfab75/FLAG64c4b6682
[2024-09-20 13:31:52,722 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/7ce09185b/cee41374eb744dd387ee6aaaeacfab75
[2024-09-20 13:31:52,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 13:31:52,723 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-20 13:31:52,727 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 13:31:52,727 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 13:31:52,732 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 13:31:52,733 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:31:51" (1/2) ...
[2024-09-20 13:31:52,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fa4ef9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:52, skipping insertion in model container
[2024-09-20 13:31:52,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:31:51" (1/2) ...
[2024-09-20 13:31:52,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@16cb3971 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:31:52, skipping insertion in model container
[2024-09-20 13:31:52,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:52" (2/2) ...
[2024-09-20 13:31:52,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fa4ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:52, skipping insertion in model container
[2024-09-20 13:31:52,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:52" (2/2) ...
[2024-09-20 13:31:52,748 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-20 13:31:52,748 INFO L1541 ArrayList]: Loop invariant at [L25-L27] (((((n <= i) && (SIZE == 20000001)) && (n <= ((unsigned) j % 4294967296))) && ((((((long long) j * 2) + i) % 4294967296) / 3) <= 20000001)) && (((((long long) i * 3) % 4294967296) / 3) <= 20000001))
[2024-09-20 13:31:52,749 INFO L1541 ArrayList]: Loop invariant at [L29-L31] ((((((SIZE == 20000001) && (n <= k)) && ((((((long long) i + k) + j) % 4294967296) / 3) <= 20000001)) && (n <= ((unsigned) j % 4294967296))) && ((((((long long) j * 2) + i) % 4294967296) / 3) <= 20000001)) && (((((long long) i * 3) % 4294967296) / 3) <= 20000001))
[2024-09-20 13:31:52,749 INFO L1541 ArrayList]: Loop invariant at [L21-L23] ((((i == 0) && (n <= 20000001)) || (((((i + 4294967295) % 4294967296) + 1) <= n) && (n <= 20000001))) && (SIZE == 20000001))
[2024-09-20 13:31:52,749 INFO L1541 ArrayList]: Function contract at [L16]: requires (SIZE == 20000001), ensures (SIZE == 20000001)
[2024-09-20 13:31:52,749 INFO L1541 ArrayList]: Function contract at [L8]: requires ((\old(cond) != 0) && (SIZE == 20000001)), ensures ((\old(cond) != 0) && (SIZE == 20000001))
[2024-09-20 13:31:52,767 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 13:31:53,009 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/sum_by_3.c[406,419]
[2024-09-20 13:31:53,038 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:31:53,050 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-20 13:31:53,091 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/sum_by_3.c[406,419]
Start Parsing Global
Start Parsing Global
Start Parsing Local
Start Parsing Local
Start Parsing Local
[2024-09-20 13:31:53,119 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 13:31:53,138 INFO L204 MainTranslator]: Completed translation
[2024-09-20 13:31:53,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53 WrapperNode
[2024-09-20 13:31:53,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 13:31:53,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 13:31:53,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 13:31:53,140 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 13:31:53,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,202 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47
[2024-09-20 13:31:53,206 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 13:31:53,207 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 13:31:53,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 13:31:53,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 13:31:53,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,237 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-20 13:31:53,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,238 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,251 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,256 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,262 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 13:31:53,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 13:31:53,270 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 13:31:53,270 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 13:31:53,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (1/1) ...
[2024-09-20 13:31:53,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 13:31:53,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:31:53,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-20 13:31:53,309 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-20 13:31:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 13:31:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-20 13:31:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 13:31:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 13:31:53,413 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 13:31:53,415 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 13:31:53,741 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live.
[2024-09-20 13:31:53,745 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 13:31:53,766 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 13:31:53,767 INFO L318 CfgBuilder]: Removed 3 assume(true) statements.
[2024-09-20 13:31:53,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:53 BoogieIcfgContainer
[2024-09-20 13:31:53,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 13:31:53,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 13:31:53,769 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 13:31:53,774 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 13:31:53,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:31:51" (1/4) ...
[2024-09-20 13:31:53,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6ef9cf and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:31:53, skipping insertion in model container
[2024-09-20 13:31:53,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:52" (2/4) ...
[2024-09-20 13:31:53,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6ef9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:53, skipping insertion in model container
[2024-09-20 13:31:53,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:53" (3/4) ...
[2024-09-20 13:31:53,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6ef9cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:53, skipping insertion in model container
[2024-09-20 13:31:53,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:53" (4/4) ...
[2024-09-20 13:31:53,778 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_by_3.c
[2024-09-20 13:31:53,795 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 13:31:53,796 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations.
[2024-09-20 13:31:53,849 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 13:31:53,857 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;@26d3af5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 13:31:53,858 INFO L337 AbstractCegarLoop]: Starting to check reachability of 8 error locations.
[2024-09-20 13:31:53,862 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:53,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2024-09-20 13:31:53,870 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:53,871 INFO L216 NwaCegarLoop]: trace histogram [1, 1]
[2024-09-20 13:31:53,871 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:53,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:53,876 INFO L85 PathProgramCache]: Analyzing trace with hash 3227, now seen corresponding path program 1 times
[2024-09-20 13:31:53,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:53,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62427970]
[2024-09-20 13:31:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:53,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:54,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:54,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:54,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62427970]
[2024-09-20 13:31:54,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62427970] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:31:54,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:31:54,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-09-20 13:31:54,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260306064]
[2024-09-20 13:31:54,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:31:54,055 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 13:31:54,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:54,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 13:31:54,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:31:54,089 INFO L87 Difference]: Start difference. First operand has 26 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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)
[2024-09-20 13:31:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:31:54,159 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions.
[2024-09-20 13:31:54,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 13:31:54,161 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
[2024-09-20 13:31:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:31:54,168 INFO L225 Difference]: With dead ends: 24
[2024-09-20 13:31:54,168 INFO L226 Difference]: Without dead ends: 22
[2024-09-20 13:31:54,170 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
[2024-09-20 13:31:54,176 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:31:54,177 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 11 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:31:54,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-09-20 13:31:54,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-09-20 13:31:54,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.5) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions.
[2024-09-20 13:31:54,202 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 2
[2024-09-20 13:31:54,202 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:31:54,202 INFO L474 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions.
[2024-09-20 13:31:54,202 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)
[2024-09-20 13:31:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions.
[2024-09-20 13:31:54,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-20 13:31:54,203 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:54,203 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-20 13:31:54,203 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-20 13:31:54,203 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:54,204 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:54,204 INFO L85 PathProgramCache]: Analyzing trace with hash 3102398, now seen corresponding path program 1 times
[2024-09-20 13:31:54,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:54,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212175208]
[2024-09-20 13:31:54,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:54,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:54,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:54,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212175208]
[2024-09-20 13:31:54,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212175208] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:31:54,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:31:54,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 13:31:54,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564563962]
[2024-09-20 13:31:54,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:31:54,460 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-20 13:31:54,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:54,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-20 13:31:54,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:31:54,462 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:54,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:31:54,635 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions.
[2024-09-20 13:31:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:31:54,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2024-09-20 13:31:54,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:31:54,637 INFO L225 Difference]: With dead ends: 30
[2024-09-20 13:31:54,638 INFO L226 Difference]: Without dead ends: 30
[2024-09-20 13:31:54,638 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-09-20 13:31:54,639 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 43 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-09-20 13:31:54,641 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 8 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-09-20 13:31:54,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-09-20 13:31:54,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23.
[2024-09-20 13:31:54,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:54,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions.
[2024-09-20 13:31:54,647 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 4
[2024-09-20 13:31:54,648 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:31:54,648 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions.
[2024-09-20 13:31:54,648 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:54,648 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions.
[2024-09-20 13:31:54,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-09-20 13:31:54,649 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:54,649 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-09-20 13:31:54,649 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-20 13:31:54,650 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:54,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:54,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1313561226, now seen corresponding path program 1 times
[2024-09-20 13:31:54,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:54,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208046904]
[2024-09-20 13:31:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:54,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:54,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:54,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:54,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208046904]
[2024-09-20 13:31:54,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208046904] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:31:54,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183867886]
[2024-09-20 13:31:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:54,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:31:54,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:31:54,921 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)
[2024-09-20 13:31:54,924 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-20 13:31:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:54,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-20 13:31:54,979 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:31:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:55,065 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:31:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:55,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183867886] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:31:55,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-20 13:31:55,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8
[2024-09-20 13:31:55,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189068597]
[2024-09-20 13:31:55,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:31:55,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-20 13:31:55,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:55,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-20 13:31:55,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:31:55,311 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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)
[2024-09-20 13:31:55,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:31:55,375 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2024-09-20 13:31:55,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-09-20 13:31:55,376 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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
[2024-09-20 13:31:55,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:31:55,376 INFO L225 Difference]: With dead ends: 22
[2024-09-20 13:31:55,376 INFO L226 Difference]: Without dead ends: 22
[2024-09-20 13:31:55,377 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:31:55,378 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 37 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:31:55,378 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 7 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:31:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-09-20 13:31:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2024-09-20 13:31:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.4375) internal successors, (23), 20 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2024-09-20 13:31:55,384 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6
[2024-09-20 13:31:55,384 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:31:55,384 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2024-09-20 13:31:55,384 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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)
[2024-09-20 13:31:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2024-09-20 13:31:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-09-20 13:31:55,385 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:55,385 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:31:55,403 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-20 13:31:55,585 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:31:55,586 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:55,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:55,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2065693835, now seen corresponding path program 1 times
[2024-09-20 13:31:55,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:55,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082694185]
[2024-09-20 13:31:55,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:55,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:55,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:55,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082694185]
[2024-09-20 13:31:55,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082694185] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:31:55,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:31:55,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-20 13:31:55,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65750579]
[2024-09-20 13:31:55,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:31:55,967 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-09-20 13:31:55,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:55,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-09-20 13:31:55,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-09-20 13:31:55,969 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:31:56,041 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions.
[2024-09-20 13:31:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-09-20 13:31:56,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 7
[2024-09-20 13:31:56,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:31:56,042 INFO L225 Difference]: With dead ends: 30
[2024-09-20 13:31:56,042 INFO L226 Difference]: Without dead ends: 30
[2024-09-20 13:31:56,043 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2024-09-20 13:31:56,044 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 41 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:31:56,046 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 13 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:31:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-09-20 13:31:56,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29.
[2024-09-20 13:31:56,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.375) internal successors, (33), 28 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:56,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions.
[2024-09-20 13:31:56,052 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 7
[2024-09-20 13:31:56,052 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:31:56,052 INFO L474 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions.
[2024-09-20 13:31:56,053 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:56,054 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions.
[2024-09-20 13:31:56,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-20 13:31:56,054 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:56,054 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:31:56,054 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-20 13:31:56,055 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:56,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:56,055 INFO L85 PathProgramCache]: Analyzing trace with hash -855402051, now seen corresponding path program 1 times
[2024-09-20 13:31:56,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:56,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780635227]
[2024-09-20 13:31:56,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:56,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:56,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:56,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:56,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780635227]
[2024-09-20 13:31:56,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780635227] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:31:56,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137121645]
[2024-09-20 13:31:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:56,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:31:56,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:31:56,582 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:31:56,584 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-20 13:31:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:56,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-20 13:31:56,628 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:31:56,714 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:56,714 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:31:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:57,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137121645] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:31:57,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:31:57,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10
[2024-09-20 13:31:57,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189543476]
[2024-09-20 13:31:57,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:31:57,044 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-09-20 13:31:57,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-09-20 13:31:57,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2024-09-20 13:31:57,045 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:57,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:31:57,445 INFO L93 Difference]: Finished difference Result 47 states and 56 transitions.
[2024-09-20 13:31:57,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-09-20 13:31:57,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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
[2024-09-20 13:31:57,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:31:57,447 INFO L225 Difference]: With dead ends: 47
[2024-09-20 13:31:57,448 INFO L226 Difference]: Without dead ends: 47
[2024-09-20 13:31:57,448 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=190, Unknown=0, NotChecked=0, Total=306
[2024-09-20 13:31:57,449 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 90 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-09-20 13:31:57,449 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 9 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-09-20 13:31:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-09-20 13:31:57,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 28.
[2024-09-20 13:31:57,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 27 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions.
[2024-09-20 13:31:57,458 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 9
[2024-09-20 13:31:57,458 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:31:57,458 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions.
[2024-09-20 13:31:57,458 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:57,458 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions.
[2024-09-20 13:31:57,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-09-20 13:31:57,458 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:57,459 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:31:57,479 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-20 13:31:57,659 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:31:57,660 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:57,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:57,661 INFO L85 PathProgramCache]: Analyzing trace with hash -793558643, now seen corresponding path program 1 times
[2024-09-20 13:31:57,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:57,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013098909]
[2024-09-20 13:31:57,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:57,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:58,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:58,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:58,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013098909]
[2024-09-20 13:31:58,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013098909] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:31:58,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:31:58,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-20 13:31:58,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869768240]
[2024-09-20 13:31:58,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:31:58,098 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-20 13:31:58,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:58,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-20 13:31:58,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:31:58,099 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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)
[2024-09-20 13:31:58,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:31:58,170 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions.
[2024-09-20 13:31:58,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-09-20 13:31:58,171 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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
[2024-09-20 13:31:58,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:31:58,171 INFO L225 Difference]: With dead ends: 29
[2024-09-20 13:31:58,171 INFO L226 Difference]: Without dead ends: 29
[2024-09-20 13:31:58,171 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:31:58,172 INFO L434 NwaCegarLoop]: 4 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:31:58,172 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 14 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:31:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2024-09-20 13:31:58,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28.
[2024-09-20 13:31:58,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.25) internal successors, (30), 27 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:31:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions.
[2024-09-20 13:31:58,175 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 10
[2024-09-20 13:31:58,176 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:31:58,176 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions.
[2024-09-20 13:31:58,176 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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)
[2024-09-20 13:31:58,176 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions.
[2024-09-20 13:31:58,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-09-20 13:31:58,177 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:31:58,177 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:31:58,177 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-09-20 13:31:58,177 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:31:58,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:31:58,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1241471419, now seen corresponding path program 1 times
[2024-09-20 13:31:58,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:31:58,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592977435]
[2024-09-20 13:31:58,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:58,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:31:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:58,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:58,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:31:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592977435]
[2024-09-20 13:31:58,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592977435] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 13:31:58,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219676393]
[2024-09-20 13:31:58,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:31:58,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 13:31:58,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 13:31:58,874 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 13:31:58,876 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-20 13:31:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:31:58,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-09-20 13:31:58,929 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 13:31:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:59,077 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 13:31:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:31:59,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219676393] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 13:31:59,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 13:31:59,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15
[2024-09-20 13:31:59,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140495551]
[2024-09-20 13:31:59,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 13:31:59,946 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-09-20 13:31:59,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:31:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-09-20 13:31:59,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=176, Unknown=0, NotChecked=0, Total=272
[2024-09-20 13:31:59,947 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:00,349 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions.
[2024-09-20 13:32:00,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-09-20 13:32:00,350 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 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 12
[2024-09-20 13:32:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:00,351 INFO L225 Difference]: With dead ends: 37
[2024-09-20 13:32:00,351 INFO L226 Difference]: Without dead ends: 37
[2024-09-20 13:32:00,351 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462
[2024-09-20 13:32:00,352 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 69 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:00,352 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 18 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-09-20 13:32:00,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-09-20 13:32:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 19.
[2024-09-20 13:32:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:00,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions.
[2024-09-20 13:32:00,355 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 12
[2024-09-20 13:32:00,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:00,355 INFO L474 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions.
[2024-09-20 13:32:00,355 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.875) internal successors, (30), 16 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:00,355 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions.
[2024-09-20 13:32:00,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-09-20 13:32:00,356 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:00,356 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:00,373 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-20 13:32:00,556 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-09-20 13:32:00,557 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:32:00,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:00,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1405458781, now seen corresponding path program 1 times
[2024-09-20 13:32:00,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:00,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167027438]
[2024-09-20 13:32:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:00,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:00,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:00,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167027438]
[2024-09-20 13:32:00,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167027438] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:00,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:00,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-20 13:32:00,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385565255]
[2024-09-20 13:32:00,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:00,938 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-20 13:32:00,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:00,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-20 13:32:00,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-09-20 13:32:00,939 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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)
[2024-09-20 13:32:01,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:01,026 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions.
[2024-09-20 13:32:01,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-09-20 13:32:01,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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
[2024-09-20 13:32:01,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:01,028 INFO L225 Difference]: With dead ends: 28
[2024-09-20 13:32:01,028 INFO L226 Difference]: Without dead ends: 27
[2024-09-20 13:32:01,028 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56
[2024-09-20 13:32:01,029 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:01,029 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 16 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2024-09-20 13:32:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27.
[2024-09-20 13:32:01,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions.
[2024-09-20 13:32:01,032 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13
[2024-09-20 13:32:01,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:01,032 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions.
[2024-09-20 13:32:01,032 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 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)
[2024-09-20 13:32:01,032 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions.
[2024-09-20 13:32:01,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-09-20 13:32:01,033 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:01,033 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:01,033 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-09-20 13:32:01,034 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:32:01,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:01,034 INFO L85 PathProgramCache]: Analyzing trace with hash -2026154746, now seen corresponding path program 1 times
[2024-09-20 13:32:01,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:01,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307181133]
[2024-09-20 13:32:01,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:01,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:01,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:01,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307181133]
[2024-09-20 13:32:01,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307181133] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:01,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:01,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-20 13:32:01,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791549803]
[2024-09-20 13:32:01,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:01,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 13:32:01,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:01,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 13:32:01,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:32:01,078 INFO L87 Difference]: Start difference. First operand 27 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:01,083 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions.
[2024-09-20 13:32:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 13:32:01,085 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), 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 15
[2024-09-20 13:32:01,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:01,086 INFO L225 Difference]: With dead ends: 25
[2024-09-20 13:32:01,086 INFO L226 Difference]: Without dead ends: 16
[2024-09-20 13:32:01,086 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 13:32:01,086 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:01,087 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 13:32:01,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2024-09-20 13:32:01,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2024-09-20 13:32:01,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions.
[2024-09-20 13:32:01,089 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 15
[2024-09-20 13:32:01,090 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:01,090 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions.
[2024-09-20 13:32:01,090 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,090 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions.
[2024-09-20 13:32:01,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-09-20 13:32:01,091 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 13:32:01,091 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:01,091 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-09-20 13:32:01,091 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] ===
[2024-09-20 13:32:01,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 13:32:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash -711579925, now seen corresponding path program 1 times
[2024-09-20 13:32:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 13:32:01,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902477458]
[2024-09-20 13:32:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 13:32:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 13:32:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 13:32:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 13:32:01,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 13:32:01,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902477458]
[2024-09-20 13:32:01,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902477458] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 13:32:01,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 13:32:01,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-09-20 13:32:01,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25307016]
[2024-09-20 13:32:01,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 13:32:01,733 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-09-20 13:32:01,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 13:32:01,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-09-20 13:32:01,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2024-09-20 13:32:01,736 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 13:32:01,866 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions.
[2024-09-20 13:32:01,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-09-20 13:32:01,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 15
[2024-09-20 13:32:01,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 13:32:01,868 INFO L225 Difference]: With dead ends: 15
[2024-09-20 13:32:01,868 INFO L226 Difference]: Without dead ends: 0
[2024-09-20 13:32:01,868 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-09-20 13:32:01,869 INFO L434 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 13:32:01,870 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 13:32:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-20 13:32:01,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-20 13:32:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-20 13:32:01,871 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15
[2024-09-20 13:32:01,872 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 13:32:01,872 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-20 13:32:01,872 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-20 13:32:01,872 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-20 13:32:01,872 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-20 13:32:01,875 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION (7 of 8 remaining)
[2024-09-20 13:32:01,875 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining)
[2024-09-20 13:32:01,875 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining)
[2024-09-20 13:32:01,876 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining)
[2024-09-20 13:32:01,876 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONPRE_CONDITION (3 of 8 remaining)
[2024-09-20 13:32:01,876 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining)
[2024-09-20 13:32:01,876 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONPOST_CONDITION (1 of 8 remaining)
[2024-09-20 13:32:01,877 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONPOST_CONDITION (0 of 8 remaining)
[2024-09-20 13:32:01,877 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-09-20 13:32:01,880 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 13:32:01,882 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-20 13:32:01,884 INFO L469 ceAbstractionStarter]: Automizer considered 3 witness invariants
[2024-09-20 13:32:01,884 INFO L470 ceAbstractionStarter]: WitnessConsidered=3
[2024-09-20 13:32:01,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:32:01 BoogieIcfgContainer
[2024-09-20 13:32:01,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-20 13:32:01,886 INFO L158 Benchmark]: Toolchain (without parser) took 9163.00ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 77.8MB in the beginning and 127.1MB in the end (delta: -49.3MB). Peak memory consumption was 193.9kB. Max. memory is 16.1GB.
[2024-09-20 13:32:01,886 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 148.9MB. Free memory was 111.5MB in the beginning and 111.5MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:32:01,888 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 13:32:01,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.36ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 112.3MB in the end (delta: -34.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-20 13:32:01,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.61ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 109.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:32:01,890 INFO L158 Benchmark]: Boogie Preprocessor took 61.61ms. Allocated memory is still 148.9MB. Free memory was 109.5MB in the beginning and 106.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 13:32:01,890 INFO L158 Benchmark]: RCFGBuilder took 498.05ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 81.5MB in the end (delta: 25.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2024-09-20 13:32:01,890 INFO L158 Benchmark]: TraceAbstraction took 8116.49ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 80.8MB in the beginning and 127.1MB in the end (delta: -46.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB.
[2024-09-20 13:32:01,892 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Witness Parser took 0.21ms. Allocated memory is still 148.9MB. Free memory was 111.5MB in the beginning and 111.5MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 412.36ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 112.3MB in the end (delta: -34.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 66.61ms. Allocated memory is still 148.9MB. Free memory was 112.3MB in the beginning and 109.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 61.61ms. Allocated memory is still 148.9MB. Free memory was 109.5MB in the beginning and 106.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 498.05ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 81.5MB in the end (delta: 25.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 8116.49ms. Allocated memory was 148.9MB in the beginning and 199.2MB in the end (delta: 50.3MB). Free memory was 80.8MB in the beginning and 127.1MB in the end (delta: -46.2MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 16]: procedure precondition always holds
For all program executions holds that procedure precondition always holds at this location
- PositiveResult [Line: 21]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 25]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness holds at this location
- PositiveResult [Line: 29]: invariant of correctness witness holds
For all program executions holds that invariant of correctness witness 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: 10]: 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: 8]: procedure postcondition always holds
For all program executions holds that procedure postcondition always holds at this location
- PositiveResult [Line: 16]: procedure postcondition always holds
For all program executions holds that procedure postcondition always holds at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 26 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 359 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 359 mSDsluCounter, 125 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 548 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 52 mSDtfsCounter, 548 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=4, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 47 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 1665 SizeOfPredicates, 3 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 3/17 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
8 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-20 13:32:01,922 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...