./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 27b49876
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 464ff86972962e190fa8e3bdd89b592f22b90512739ab3fd4df7709eb39adee3 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m
[2024-09-21 12:21:23,467 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-21 12:21:23,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-21 12:21:23,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-21 12:21:23,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-21 12:21:23,562 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-21 12:21:23,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-21 12:21:23,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-21 12:21:23,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-21 12:21:23,564 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-21 12:21:23,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-21 12:21:23,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-21 12:21:23,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-21 12:21:23,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-21 12:21:23,566 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-21 12:21:23,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-21 12:21:23,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-21 12:21:23,567 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-21 12:21:23,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-21 12:21:23,567 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-21 12:21:23,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-21 12:21:23,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-21 12:21:23,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-21 12:21:23,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-21 12:21:23,569 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-21 12:21:23,569 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-21 12:21:23,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-21 12:21:23,570 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-21 12:21:23,570 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-21 12:21:23,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-21 12:21:23,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-21 12:21:23,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-21 12:21:23,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-21 12:21:23,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-21 12:21:23,572 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-21 12:21:23,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-21 12:21:23,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-21 12:21:23,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-21 12:21:23,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-21 12:21:23,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-21 12:21:23,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-21 12:21:23,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-21 12:21:23,575 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 464ff86972962e190fa8e3bdd89b592f22b90512739ab3fd4df7709eb39adee3
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-09-21 12:21:23,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-21 12:21:23,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-21 12:21:23,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-21 12:21:23,881 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-21 12:21:23,882 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-21 12:21:23,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c
[2024-09-21 12:21:25,323 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-21 12:21:25,495 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-21 12:21:25,496 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound10.c
[2024-09-21 12:21:25,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/af186a984/516881b6ef5a4247ba3ca6acf3e82a31/FLAGbf4399da4
[2024-09-21 12:21:25,518 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/af186a984/516881b6ef5a4247ba3ca6acf3e82a31
[2024-09-21 12:21:25,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-21 12:21:25,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-21 12:21:25,523 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-21 12:21:25,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-21 12:21:25,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-21 12:21:25,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461c6583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25, skipping insertion in model container
[2024-09-21 12:21:25,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,554 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-21 12:21:25,712 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/nla-digbench-scaling/ps2-ll_valuebound10.c[454,467]
[2024-09-21 12:21:25,726 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-21 12:21:25,735 INFO L200 MainTranslator]: Completed pre-run
[2024-09-21 12:21:25,748 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/nla-digbench-scaling/ps2-ll_valuebound10.c[454,467]
[2024-09-21 12:21:25,752 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-21 12:21:25,765 INFO L204 MainTranslator]: Completed translation
[2024-09-21 12:21:25,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25 WrapperNode
[2024-09-21 12:21:25,765 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-21 12:21:25,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-21 12:21:25,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-21 12:21:25,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-21 12:21:25,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,784 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-21 12:21:25,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-21 12:21:25,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-21 12:21:25,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-21 12:21:25,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-21 12:21:25,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,806 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].
[2024-09-21 12:21:25,806 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,806 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-21 12:21:25,815 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-21 12:21:25,815 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-21 12:21:25,815 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-21 12:21:25,816 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (1/1) ...
[2024-09-21 12:21:25,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-21 12:21:25,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-21 12:21:25,852 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)
[2024-09-21 12:21:25,854 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
[2024-09-21 12:21:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-21 12:21:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-21 12:21:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-21 12:21:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-21 12:21:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-21 12:21:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-21 12:21:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-21 12:21:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-21 12:21:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-21 12:21:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-21 12:21:25,897 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-21 12:21:25,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-21 12:21:25,954 INFO L242 CfgBuilder]: Building ICFG
[2024-09-21 12:21:25,955 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-21 12:21:26,110 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live.
[2024-09-21 12:21:26,110 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-21 12:21:26,128 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-21 12:21:26,128 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-21 12:21:26,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:21:26 BoogieIcfgContainer
[2024-09-21 12:21:26,129 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-21 12:21:26,131 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-21 12:21:26,131 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-21 12:21:26,133 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-21 12:21:26,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 12:21:25" (1/3) ...
[2024-09-21 12:21:26,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788f816c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:21:26, skipping insertion in model container
[2024-09-21 12:21:26,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:21:25" (2/3) ...
[2024-09-21 12:21:26,135 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788f816c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 12:21:26, skipping insertion in model container
[2024-09-21 12:21:26,135 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:21:26" (3/3) ...
[2024-09-21 12:21:26,136 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound10.c
[2024-09-21 12:21:26,151 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-21 12:21:26,151 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-21 12:21:26,204 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-21 12:21:26,211 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=All, 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;@3dc48150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-21 12:21:26,211 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-21 12:21:26,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-09-21 12:21:26,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-21 12:21:26,224 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-21 12:21:26,224 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-21 12:21:26,224 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-21 12:21:26,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-21 12:21:26,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1065431329, now seen corresponding path program 1 times
[2024-09-21 12:21:26,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-21 12:21:26,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454077096]
[2024-09-21 12:21:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-21 12:21:26,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-21 12:21:26,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-21 12:21:26,399 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-21 12:21:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-21 12:21:26,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-21 12:21:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-21 12:21:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-21 12:21:26,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-21 12:21:26,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454077096]
[2024-09-21 12:21:26,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454077096] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-21 12:21:26,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-21 12:21:26,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-21 12:21:26,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027287930]
[2024-09-21 12:21:26,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-21 12:21:26,440 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-21 12:21:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-21 12:21:26,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-21 12:21:26,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-21 12:21:26,468 INFO L87 Difference]: Start difference. First operand has 25 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 15 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-21 12:21:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-21 12:21:26,500 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions.
[2024-09-21 12:21:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-21 12:21:26,503 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16
[2024-09-21 12:21:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-21 12:21:26,510 INFO L225 Difference]: With dead ends: 42
[2024-09-21 12:21:26,510 INFO L226 Difference]: Without dead ends: 21
[2024-09-21 12:21:26,514 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-21 12:21:26,518 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 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
[2024-09-21 12:21:26,520 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-21 12:21:26,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-09-21 12:21:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-09-21 12:21:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-09-21 12:21:26,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions.
[2024-09-21 12:21:26,558 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16
[2024-09-21 12:21:26,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-21 12:21:26,560 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions.
[2024-09-21 12:21:26,560 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-21 12:21:26,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-21 12:21:26,562 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions.
[2024-09-21 12:21:26,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-21 12:21:26,562 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-21 12:21:26,563 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-21 12:21:26,563 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-21 12:21:26,564 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-21 12:21:26,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-21 12:21:26,566 INFO L85 PathProgramCache]: Analyzing trace with hash -392820709, now seen corresponding path program 1 times
[2024-09-21 12:21:26,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-21 12:21:26,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51796165]
[2024-09-21 12:21:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-21 12:21:26,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-21 12:21:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-21 12:21:26,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1919444701]
[2024-09-21 12:21:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-21 12:21:26,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-21 12:21:26,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-21 12:21:26,603 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)
[2024-09-21 12:21:26,605 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-21 12:21:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-21 12:21:26,677 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-21 12:21:26,685 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-21 12:21:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-21 12:21:26,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-21 12:21:26,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-21 12:21:26,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51796165]
[2024-09-21 12:21:26,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-21 12:21:26,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919444701]
[2024-09-21 12:21:26,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919444701] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-21 12:21:26,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-21 12:21:26,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-21 12:21:26,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662858566]
[2024-09-21 12:21:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-21 12:21:26,794 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-21 12:21:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-21 12:21:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-21 12:21:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-21 12:21:26,797 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-21 12:21:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-21 12:21:26,864 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions.
[2024-09-21 12:21:26,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-21 12:21:26,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16
[2024-09-21 12:21:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-21 12:21:26,866 INFO L225 Difference]: With dead ends: 31
[2024-09-21 12:21:26,867 INFO L226 Difference]: Without dead ends: 28
[2024-09-21 12:21:26,867 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-21 12:21:26,868 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-21 12:21:26,869 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 65 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-21 12:21:26,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-09-21 12:21:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2024-09-21 12:21:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-09-21 12:21:26,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions.
[2024-09-21 12:21:26,879 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 16
[2024-09-21 12:21:26,879 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-21 12:21:26,879 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions.
[2024-09-21 12:21:26,879 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-21 12:21:26,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-21 12:21:26,880 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions.
[2024-09-21 12:21:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2024-09-21 12:21:26,881 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-21 12:21:26,881 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-21 12:21:26,898 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-09-21 12:21:27,085 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-21 12:21:27,086 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-21 12:21:27,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-21 12:21:27,087 INFO L85 PathProgramCache]: Analyzing trace with hash -543150969, now seen corresponding path program 1 times
[2024-09-21 12:21:27,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-21 12:21:27,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707264727]
[2024-09-21 12:21:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-21 12:21:27,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-21 12:21:27,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-21 12:21:27,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [160841277]
[2024-09-21 12:21:27,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-21 12:21:27,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-21 12:21:27,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-21 12:21:27,113 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)
[2024-09-21 12:21:27,116 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-21 12:21:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-21 12:21:27,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-09-21 12:21:27,177 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-21 12:21:27,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-21 12:21:27,293 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-21 12:21:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-09-21 12:21:27,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-21 12:21:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707264727]
[2024-09-21 12:21:27,400 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-21 12:21:27,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160841277]
[2024-09-21 12:21:27,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160841277] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-21 12:21:27,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-21 12:21:27,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7
[2024-09-21 12:21:27,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583395027]
[2024-09-21 12:21:27,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-21 12:21:27,402 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-21 12:21:27,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-21 12:21:27,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-21 12:21:27,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-09-21 12:21:27,403 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-09-21 12:21:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-21 12:21:27,450 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions.
[2024-09-21 12:21:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-21 12:21:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23
[2024-09-21 12:21:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-21 12:21:27,451 INFO L225 Difference]: With dead ends: 28
[2024-09-21 12:21:27,451 INFO L226 Difference]: Without dead ends: 0
[2024-09-21 12:21:27,452 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-09-21 12:21:27,453 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-21 12:21:27,453 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 53 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-21 12:21:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-21 12:21:27,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-21 12:21:27,454 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)
[2024-09-21 12:21:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-21 12:21:27,456 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23
[2024-09-21 12:21:27,456 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-21 12:21:27,456 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-21 12:21:27,458 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-09-21 12:21:27,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-21 12:21:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-21 12:21:27,459 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-21 12:21:27,462 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-21 12:21:27,477 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-21 12:21:27,663 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-21 12:21:27,667 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1, 1]
[2024-09-21 12:21:27,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-09-21 12:21:27,795 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-21 12:21:27,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 12:21:27 BoogieIcfgContainer
[2024-09-21 12:21:27,827 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-21 12:21:27,828 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-21 12:21:27,828 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-09-21 12:21:27,828 INFO L274 PluginConnector]: Witness Printer initialized
[2024-09-21 12:21:27,829 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:21:26" (3/4) ...
[2024-09-21 12:21:27,831 INFO L139 WitnessPrinter]: Generating witness for correct program
[2024-09-21 12:21:27,872 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-09-21 12:21:27,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-21 12:21:27,873 INFO L158 Benchmark]: Toolchain (without parser) took 2351.06ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 72.9MB in the end (delta: 63.5MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB.
[2024-09-21 12:21:27,873 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory was 80.4MB in the beginning and 80.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:21:27,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.01ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 125.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-21 12:21:27,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.47ms. Allocated memory is still 169.9MB. Free memory was 125.0MB in the beginning and 124.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:21:27,874 INFO L158 Benchmark]: Boogie Preprocessor took 29.68ms. Allocated memory is still 169.9MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-21 12:21:27,874 INFO L158 Benchmark]: RCFGBuilder took 313.81ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 138.0MB in the end (delta: -16.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-21 12:21:27,874 INFO L158 Benchmark]: TraceAbstraction took 1696.59ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 76.1MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB.
[2024-09-21 12:21:27,875 INFO L158 Benchmark]: Witness Printer took 44.36ms. Allocated memory is still 169.9MB. Free memory was 76.1MB in the beginning and 72.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-09-21 12:21:27,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory was 80.4MB in the beginning and 80.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 243.01ms. Allocated memory is still 169.9MB. Free memory was 136.5MB in the beginning and 125.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 17.47ms. Allocated memory is still 169.9MB. Free memory was 125.0MB in the beginning and 124.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 29.68ms. Allocated memory is still 169.9MB. Free memory was 124.0MB in the beginning and 121.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 313.81ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 138.0MB in the end (delta: -16.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 1696.59ms. Allocated memory is still 169.9MB. Free memory was 136.9MB in the beginning and 76.1MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB.
* Witness Printer took 44.36ms. Allocated memory is still 169.9MB. Free memory was 76.1MB in the beginning and 72.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 12]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 142 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 56 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 12, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 94 NumberOfCodeBlocks, 94 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 168 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 27]: Loop Invariant
Derived loop invariant: (((__int128) x * 2) == (y + ((__int128) y * y)))
- ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: (1 <= cond) Ensures: (1 <= cond)
RESULT: Ultimate proved your program to be correct!
[2024-09-21 12:21:27,907 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...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE