/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 22:57:10,458 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 22:57:10,462 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 22:57:10,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 22:57:10,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 22:57:10,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 22:57:10,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 22:57:10,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 22:57:10,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 22:57:10,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 22:57:10,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 22:57:10,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 22:57:10,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 22:57:10,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 22:57:10,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 22:57:10,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 22:57:10,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 22:57:10,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 22:57:10,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 22:57:10,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 22:57:10,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 22:57:10,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 22:57:10,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 22:57:10,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 22:57:10,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 22:57:10,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 22:57:10,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 22:57:10,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 22:57:10,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 22:57:10,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 22:57:10,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 22:57:10,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 22:57:10,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 22:57:10,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 22:57:10,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 22:57:10,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 22:57:10,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 22:57:10,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 22:57:10,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 22:57:10,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 22:57:10,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 22:57:10,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 22:57:10,579 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 22:57:10,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 22:57:10,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 22:57:10,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 22:57:10,582 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 22:57:10,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 22:57:10,583 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 22:57:10,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 22:57:10,583 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 22:57:10,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 22:57:10,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 22:57:10,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 22:57:10,585 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 22:57:10,585 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 22:57:10,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 22:57:10,586 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 22:57:10,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 22:57:10,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 22:57:10,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 22:57:10,587 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 22:57:10,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 22:57:10,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:57:10,588 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 22:57:10,588 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 22:57:10,588 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 22:57:10,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 22:57:10,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 22:57:10,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 22:57:10,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 22:57:10,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true;
[2020-09-24 22:57:11,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 22:57:11,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 22:57:11,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 22:57:11,124 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 22:57:11,124 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 22:57:11,126 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i
[2020-09-24 22:57:11,213 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a1140d85/2b2ff8abbb1e47659a9a529291859072/FLAG15d03e592
[2020-09-24 22:57:11,741 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 22:57:11,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/jm2006_variant.i
[2020-09-24 22:57:11,751 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a1140d85/2b2ff8abbb1e47659a9a529291859072/FLAG15d03e592
[2020-09-24 22:57:12,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a1140d85/2b2ff8abbb1e47659a9a529291859072
[2020-09-24 22:57:12,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 22:57:12,101 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 22:57:12,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 22:57:12,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 22:57:12,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 22:57:12,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66271ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12, skipping insertion in model container
[2020-09-24 22:57:12,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 22:57:12,151 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 22:57:12,375 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:57:12,381 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 22:57:12,403 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:57:12,422 INFO L208 MainTranslator]: Completed translation
[2020-09-24 22:57:12,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12 WrapperNode
[2020-09-24 22:57:12,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 22:57:12,424 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 22:57:12,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 22:57:12,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 22:57:12,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,463 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
[2020-09-24 22:57:12,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 22:57:12,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 22:57:12,545 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 22:57:12,545 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 22:57:12,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:57:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 22:57:12,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 22:57:12,624 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 22:57:12,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 22:57:12,625 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 22:57:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 22:57:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 22:57:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 22:57:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 22:57:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 22:57:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 22:57:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 22:57:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 22:57:12,944 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 22:57:12,944 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-24 22:57:12,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:12 BoogieIcfgContainer
[2020-09-24 22:57:12,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 22:57:12,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 22:57:12,951 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 22:57:12,954 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 22:57:12,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:57:12" (1/3) ...
[2020-09-24 22:57:12,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55df6cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:12, skipping insertion in model container
[2020-09-24 22:57:12,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:12" (2/3) ...
[2020-09-24 22:57:12,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55df6cc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:12, skipping insertion in model container
[2020-09-24 22:57:12,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:12" (3/3) ...
[2020-09-24 22:57:12,959 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i
[2020-09-24 22:57:12,971 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 22:57:12,982 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 22:57:13,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 22:57:13,050 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 22:57:13,050 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 22:57:13,050 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 22:57:13,050 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 22:57:13,050 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 22:57:13,050 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 22:57:13,050 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 22:57:13,051 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 22:57:13,076 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-09-24 22:57:13,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-24 22:57:13,083 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:13,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:13,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:13,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:13,091 INFO L82 PathProgramCache]: Analyzing trace with hash 394160949, now seen corresponding path program 1 times
[2020-09-24 22:57:13,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:13,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [261346835]
[2020-09-24 22:57:13,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:13,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:13,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:13,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 22:57:13,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:13,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86
[2020-09-24 22:57:13,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:13,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-24 22:57:13,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:13,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 22:57:13,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:13,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:13,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:13,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:57:13,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:13,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:57:13,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:13,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:13,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:13,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:57:13,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [261346835]
[2020-09-24 22:57:13,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:57:13,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-09-24 22:57:13,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507139359]
[2020-09-24 22:57:13,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-09-24 22:57:13,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:13,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-09-24 22:57:13,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-24 22:57:13,391 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states.
[2020-09-24 22:57:13,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:13,424 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions.
[2020-09-24 22:57:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-09-24 22:57:13,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23
[2020-09-24 22:57:13,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:13,439 INFO L225 Difference]: With dead ends: 53
[2020-09-24 22:57:13,440 INFO L226 Difference]: Without dead ends: 31
[2020-09-24 22:57:13,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-24 22:57:13,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2020-09-24 22:57:13,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31.
[2020-09-24 22:57:13,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states.
[2020-09-24 22:57:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions.
[2020-09-24 22:57:13,497 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 23
[2020-09-24 22:57:13,497 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:13,498 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions.
[2020-09-24 22:57:13,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-09-24 22:57:13,498 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions.
[2020-09-24 22:57:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2020-09-24 22:57:13,499 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:13,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:13,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 22:57:13,500 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:13,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:13,500 INFO L82 PathProgramCache]: Analyzing trace with hash 79240288, now seen corresponding path program 1 times
[2020-09-24 22:57:13,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:13,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61081492]
[2020-09-24 22:57:13,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:13,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:13,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:13,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32
[2020-09-24 22:57:13,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:13,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245
[2020-09-24 22:57:13,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:13,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-24 22:57:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-24 22:57:13,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10
[2020-09-24 22:57:13,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:14,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:14,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:14,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:57:14,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:14,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:57:14,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:14,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:57:14,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61081492]
[2020-09-24 22:57:14,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:57:14,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-24 22:57:14,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911892662]
[2020-09-24 22:57:14,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-24 22:57:14,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:14,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-24 22:57:14,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2020-09-24 22:57:14,102 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 9 states.
[2020-09-24 22:57:14,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:14,345 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions.
[2020-09-24 22:57:14,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2020-09-24 22:57:14,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23
[2020-09-24 22:57:14,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:14,347 INFO L225 Difference]: With dead ends: 40
[2020-09-24 22:57:14,348 INFO L226 Difference]: Without dead ends: 34
[2020-09-24 22:57:14,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2020-09-24 22:57:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2020-09-24 22:57:14,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32.
[2020-09-24 22:57:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states.
[2020-09-24 22:57:14,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions.
[2020-09-24 22:57:14,364 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23
[2020-09-24 22:57:14,365 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:14,365 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions.
[2020-09-24 22:57:14,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-24 22:57:14,365 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions.
[2020-09-24 22:57:14,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-24 22:57:14,368 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:14,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:14,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 22:57:14,369 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:14,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:14,370 INFO L82 PathProgramCache]: Analyzing trace with hash 821188708, now seen corresponding path program 1 times
[2020-09-24 22:57:14,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:14,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775903068]
[2020-09-24 22:57:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:14,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:14,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:14,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-24 22:57:14,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:14,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 368
[2020-09-24 22:57:14,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 22:57:14,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-24 22:57:14,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18
[2020-09-24 22:57:14,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:15,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:15,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:15,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:57:15,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:15,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:57:15,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:15,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:15,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:15,141 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:57:15,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775903068]
[2020-09-24 22:57:15,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:57:15,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14
[2020-09-24 22:57:15,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716103633]
[2020-09-24 22:57:15,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-24 22:57:15,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:15,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-24 22:57:15,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182
[2020-09-24 22:57:15,144 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 14 states.
[2020-09-24 22:57:15,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:15,553 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions.
[2020-09-24 22:57:15,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2020-09-24 22:57:15,554 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31
[2020-09-24 22:57:15,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:15,556 INFO L225 Difference]: With dead ends: 48
[2020-09-24 22:57:15,556 INFO L226 Difference]: Without dead ends: 42
[2020-09-24 22:57:15,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420
[2020-09-24 22:57:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2020-09-24 22:57:15,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40.
[2020-09-24 22:57:15,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-09-24 22:57:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions.
[2020-09-24 22:57:15,566 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 31
[2020-09-24 22:57:15,566 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:15,566 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions.
[2020-09-24 22:57:15,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-24 22:57:15,567 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions.
[2020-09-24 22:57:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2020-09-24 22:57:15,568 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:15,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:15,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 22:57:15,569 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:15,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:15,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1866551400, now seen corresponding path program 2 times
[2020-09-24 22:57:15,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:15,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564042810]
[2020-09-24 22:57:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:15,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:15,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:15,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48
[2020-09-24 22:57:15,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:15,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 393
[2020-09-24 22:57:15,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:15,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18
[2020-09-24 22:57:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-24 22:57:15,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-24 22:57:15,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:16,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:16,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:16,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:16,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:57:16,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:57:16,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:16,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:16,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:16,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:57:16,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564042810]
[2020-09-24 22:57:16,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:57:16,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19
[2020-09-24 22:57:16,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891714649]
[2020-09-24 22:57:16,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states
[2020-09-24 22:57:16,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:16,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2020-09-24 22:57:16,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342
[2020-09-24 22:57:16,430 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand 19 states.
[2020-09-24 22:57:17,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:17,354 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions.
[2020-09-24 22:57:17,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2020-09-24 22:57:17,354 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 39
[2020-09-24 22:57:17,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:17,356 INFO L225 Difference]: With dead ends: 54
[2020-09-24 22:57:17,357 INFO L226 Difference]: Without dead ends: 48
[2020-09-24 22:57:17,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=161, Invalid=895, Unknown=0, NotChecked=0, Total=1056
[2020-09-24 22:57:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2020-09-24 22:57:17,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48.
[2020-09-24 22:57:17,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states.
[2020-09-24 22:57:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions.
[2020-09-24 22:57:17,377 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 39
[2020-09-24 22:57:17,377 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:17,377 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions.
[2020-09-24 22:57:17,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states.
[2020-09-24 22:57:17,378 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions.
[2020-09-24 22:57:17,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-09-24 22:57:17,380 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:17,380 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:17,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 22:57:17,380 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:17,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:17,381 INFO L82 PathProgramCache]: Analyzing trace with hash 472515692, now seen corresponding path program 3 times
[2020-09-24 22:57:17,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:17,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949010952]
[2020-09-24 22:57:17,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:17,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:17,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:17,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56
[2020-09-24 22:57:17,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:17,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471
[2020-09-24 22:57:17,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:17,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23
[2020-09-24 22:57:17,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-24 22:57:17,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34
[2020-09-24 22:57:17,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:18,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:18,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:18,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:18,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:57:18,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:18,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-09-24 22:57:18,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:18,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:18,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:18,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:18,206 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2020-09-24 22:57:18,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949010952]
[2020-09-24 22:57:18,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:57:18,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16
[2020-09-24 22:57:18,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791592757]
[2020-09-24 22:57:18,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-09-24 22:57:18,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:18,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-09-24 22:57:18,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240
[2020-09-24 22:57:18,209 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 16 states.
[2020-09-24 22:57:18,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:18,621 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions.
[2020-09-24 22:57:18,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2020-09-24 22:57:18,621 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 47
[2020-09-24 22:57:18,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:18,622 INFO L225 Difference]: With dead ends: 48
[2020-09-24 22:57:18,622 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 22:57:18,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600
[2020-09-24 22:57:18,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 22:57:18,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 22:57:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 22:57:18,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 22:57:18,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47
[2020-09-24 22:57:18,627 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:18,627 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 22:57:18,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states.
[2020-09-24 22:57:18,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 22:57:18,627 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 22:57:18,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 22:57:18,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 22:57:18,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-24 22:57:18,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 22:57:18,760 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 22:57:18,760 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 22:57:18,760 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 22:57:18,761 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 22:57:18,761 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed.
[2020-09-24 22:57:18,761 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed.
[2020-09-24 22:57:18,761 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed.
[2020-09-24 22:57:18,761 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed.
[2020-09-24 22:57:18,761 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed.
[2020-09-24 22:57:18,762 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed.
[2020-09-24 22:57:18,762 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-24 22:57:18,762 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 31) no Hoare annotation was computed.
[2020-09-24 22:57:18,762 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed.
[2020-09-24 22:57:18,762 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed.
[2020-09-24 22:57:18,762 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L23-2(line 23) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed.
[2020-09-24 22:57:18,763 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-24 22:57:18,764 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-24 22:57:18,764 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-24 22:57:18,764 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 31) no Hoare annotation was computed.
[2020-09-24 22:57:18,764 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 31) the Hoare annotation is: true
[2020-09-24 22:57:18,765 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 0) (<= 0 .cse0)))
[2020-09-24 22:57:18,765 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed.
[2020-09-24 22:57:18,765 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed.
[2020-09-24 22:57:18,765 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (or (let ((.cse0 (+ main_~y~0 main_~z~0))) (and (<= .cse0 main_~x~0) (<= main_~x~0 .cse0))) (not (= main_~i~0 main_~j~0)))
[2020-09-24 22:57:18,766 INFO L268 CegarLoopResult]: For program point L22-3(lines 13 31) no Hoare annotation was computed.
[2020-09-24 22:57:18,766 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed.
[2020-09-24 22:57:18,766 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed.
[2020-09-24 22:57:18,766 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-24 22:57:18,766 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed.
[2020-09-24 22:57:18,766 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed.
[2020-09-24 22:57:18,767 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed.
[2020-09-24 22:57:18,767 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true
[2020-09-24 22:57:18,768 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed.
[2020-09-24 22:57:18,768 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed.
[2020-09-24 22:57:18,768 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed.
[2020-09-24 22:57:18,768 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed.
[2020-09-24 22:57:18,769 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed.
[2020-09-24 22:57:18,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:57:18 BoogieIcfgContainer
[2020-09-24 22:57:18,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 22:57:18,801 INFO L168 Benchmark]: Toolchain (without parser) took 6700.85 ms. Allocated memory was 140.0 MB in the beginning and 277.9 MB in the end (delta: 137.9 MB). Free memory was 103.6 MB in the beginning and 152.4 MB in the end (delta: -48.8 MB). Peak memory consumption was 89.1 MB. Max. memory is 7.1 GB.
[2020-09-24 22:57:18,804 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 22:57:18,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.65 ms. Allocated memory is still 140.0 MB. Free memory was 102.9 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
[2020-09-24 22:57:18,810 INFO L168 Benchmark]: Boogie Preprocessor took 120.49 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.4 MB in the beginning and 182.9 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB.
[2020-09-24 22:57:18,813 INFO L168 Benchmark]: RCFGBuilder took 404.22 ms. Allocated memory is still 202.9 MB. Free memory was 182.9 MB in the beginning and 167.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB.
[2020-09-24 22:57:18,814 INFO L168 Benchmark]: TraceAbstraction took 5844.71 ms. Allocated memory was 202.9 MB in the beginning and 277.9 MB in the end (delta: 75.0 MB). Free memory was 166.8 MB in the beginning and 152.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB.
[2020-09-24 22:57:18,826 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.26 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 321.65 ms. Allocated memory is still 140.0 MB. Free memory was 102.9 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 120.49 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 93.4 MB in the beginning and 182.9 MB in the end (delta: -89.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 404.22 ms. Allocated memory is still 202.9 MB. Free memory was 182.9 MB in the beginning and 167.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 5844.71 ms. Allocated memory was 202.9 MB in the beginning and 277.9 MB in the end (delta: 75.0 MB). Free memory was 166.8 MB in the beginning and 152.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 89.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 22]: Loop Invariant
Derived loop invariant: (y + z <= x && x <= y + z) || !(i == j)
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 77 SDslu, 536 SDs, 0 SdLazy, 569 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 17 NumberOfFragments, 32 HoareAnnotationTreeSize, 11 FomulaSimplifications, 127 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 163 NumberOfCodeBlocks, 163 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 47830 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 16/38 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
RESULT: Ultimate proved your program to be correct!
Received shutdown request...