/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/recursive/McCarthy91-2.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 22:37:58,400 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 22:37:58,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 22:37:58,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 22:37:58,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 22:37:58,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 22:37:58,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 22:37:58,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 22:37:58,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 22:37:58,475 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 22:37:58,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 22:37:58,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 22:37:58,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 22:37:58,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 22:37:58,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 22:37:58,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 22:37:58,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 22:37:58,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 22:37:58,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 22:37:58,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 22:37:58,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 22:37:58,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 22:37:58,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 22:37:58,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 22:37:58,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 22:37:58,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 22:37:58,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 22:37:58,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 22:37:58,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 22:37:58,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 22:37:58,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 22:37:58,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 22:37:58,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 22:37:58,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 22:37:58,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 22:37:58,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 22:37:58,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 22:37:58,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 22:37:58,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 22:37:58,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 22:37:58,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 22:37:58,542 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 22:37:58,589 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 22:37:58,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 22:37:58,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 22:37:58,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 22:37:58,592 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 22:37:58,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 22:37:58,593 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 22:37:58,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 22:37:58,593 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 22:37:58,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 22:37:58,594 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 22:37:58,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 22:37:58,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 22:37:58,595 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 22:37:58,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 22:37:58,596 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 22:37:58,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 22:37:58,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 22:37:58,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 22:37:58,596 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 22:37:58,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 22:37:58,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:37:58,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 22:37:58,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 22:37:58,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 22:37:58,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 22:37:58,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 22:37:58,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 22:37:58,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 22:37:58,598 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 22:37:59,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 22:37:59,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 22:37:59,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 22:37:59,073 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 22:37:59,073 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 22:37:59,074 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/McCarthy91-2.c
[2020-09-24 22:37:59,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baa1ccad4/4057f53bba8848648bbabd09140c20ba/FLAGcad049d36
[2020-09-24 22:37:59,737 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 22:37:59,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/McCarthy91-2.c
[2020-09-24 22:37:59,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baa1ccad4/4057f53bba8848648bbabd09140c20ba/FLAGcad049d36
[2020-09-24 22:38:00,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/baa1ccad4/4057f53bba8848648bbabd09140c20ba
[2020-09-24 22:38:00,089 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 22:38:00,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 22:38:00,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 22:38:00,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 22:38:00,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 22:38:00,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fad44cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00, skipping insertion in model container
[2020-09-24 22:38:00,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 22:38:00,150 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 22:38:00,388 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:38:00,401 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 22:38:00,426 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:38:00,447 INFO L208 MainTranslator]: Completed translation
[2020-09-24 22:38:00,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00 WrapperNode
[2020-09-24 22:38:00,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 22:38:00,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 22:38:00,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 22:38:00,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 22:38:00,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (1/1) ...
[2020-09-24 22:38:00,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 22:38:00,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 22:38:00,497 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 22:38:00,497 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 22:38:00,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (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 22:38:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 22:38:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 22:38:00,687 INFO L138 BoogieDeclarations]: Found implementation of procedure f91
[2020-09-24 22:38:00,688 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 22:38:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 22:38:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 22:38:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure f91
[2020-09-24 22:38:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 22:38:00,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 22:38:00,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 22:38:00,925 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 22:38:00,926 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-24 22:38:00,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:38:00 BoogieIcfgContainer
[2020-09-24 22:38:00,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 22:38:00,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 22:38:00,945 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 22:38:00,955 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 22:38:00,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:38:00" (1/3) ...
[2020-09-24 22:38:00,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:38:00, skipping insertion in model container
[2020-09-24 22:38:00,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:38:00" (2/3) ...
[2020-09-24 22:38:00,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:38:00, skipping insertion in model container
[2020-09-24 22:38:00,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:38:00" (3/3) ...
[2020-09-24 22:38:00,967 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-2.c
[2020-09-24 22:38:00,996 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 22:38:01,019 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 22:38:01,041 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 22:38:01,069 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 22:38:01,070 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 22:38:01,070 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 22:38:01,070 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 22:38:01,070 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 22:38:01,070 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 22:38:01,071 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 22:38:01,071 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 22:38:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states.
[2020-09-24 22:38:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-09-24 22:38:01,101 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:38:01,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:38:01,103 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:38:01,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:38:01,111 INFO L82 PathProgramCache]: Analyzing trace with hash 346555185, now seen corresponding path program 1 times
[2020-09-24 22:38:01,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:38:01,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669266650]
[2020-09-24 22:38:01,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:38:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:01,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:01,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:01,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-24 22:38:01,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:01,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200
[2020-09-24 22:38:01,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 22:38:01,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15
[2020-09-24 22:38:01,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 22:38:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-24 22:38:01,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:38:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:01,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:01,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:01,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:38:01,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:01,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:38:01,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:38:01,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:38:01,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:38:01,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:38:01,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-09-24 22:38:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:01,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:01,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:01,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:38:01,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:01,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32
[2020-09-24 22:38:01,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 22:38:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:38:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 22:38:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:38:01,826 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 22:38:01,827 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669266650]
[2020-09-24 22:38:01,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:38:01,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2020-09-24 22:38:01,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41035859]
[2020-09-24 22:38:01,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-09-24 22:38:01,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:38:01,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-09-24 22:38:01,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2020-09-24 22:38:01,859 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states.
[2020-09-24 22:38:02,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:38:02,083 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions.
[2020-09-24 22:38:02,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-09-24 22:38:02,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18
[2020-09-24 22:38:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:38:02,101 INFO L225 Difference]: With dead ends: 46
[2020-09-24 22:38:02,102 INFO L226 Difference]: Without dead ends: 28
[2020-09-24 22:38:02,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-09-24 22:38:02,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2020-09-24 22:38:02,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2020-09-24 22:38:02,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states.
[2020-09-24 22:38:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions.
[2020-09-24 22:38:02,173 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 18
[2020-09-24 22:38:02,174 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:38:02,174 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions.
[2020-09-24 22:38:02,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-09-24 22:38:02,174 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions.
[2020-09-24 22:38:02,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2020-09-24 22:38:02,177 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:38:02,177 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1]
[2020-09-24 22:38:02,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 22:38:02,178 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:38:02,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:38:02,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1167280018, now seen corresponding path program 1 times
[2020-09-24 22:38:02,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:38:02,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115385346]
[2020-09-24 22:38:02,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:38:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:02,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:02,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:02,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47
[2020-09-24 22:38:02,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:02,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439
[2020-09-24 22:38:02,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14
[2020-09-24 22:38:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 22:38:02,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-24 22:38:02,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:38:02,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:38:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:02,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:02,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:02,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-24 22:38:02,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:02,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 22:38:02,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:38:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:38:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:38:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:38:02,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-09-24 22:38:02,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:02,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:02,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:02,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31
[2020-09-24 22:38:02,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:02,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191
[2020-09-24 22:38:02,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-24 22:38:02,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:38:02,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26
[2020-09-24 22:38:02,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:38:02,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-09-24 22:38:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:02,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:02,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:02,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:38:02,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:02,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23
[2020-09-24 22:38:02,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:02,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 22:38:02,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:38:02,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 22:38:02,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:38:03,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2020-09-24 22:38:03,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:38:03,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:38:03,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:38:03,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:38:03,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:38:03,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16
[2020-09-24 22:38:03,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:38:03,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 22:38:03,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:38:03,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 22:38:03,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:38:03,108 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-09-24 22:38:03,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115385346]
[2020-09-24 22:38:03,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:38:03,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-24 22:38:03,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365187657]
[2020-09-24 22:38:03,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 22:38:03,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:38:03,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 22:38:03,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156
[2020-09-24 22:38:03,114 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 13 states.
[2020-09-24 22:38:03,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:38:03,404 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions.
[2020-09-24 22:38:03,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-24 22:38:03,405 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 34
[2020-09-24 22:38:03,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:38:03,406 INFO L225 Difference]: With dead ends: 28
[2020-09-24 22:38:03,406 INFO L226 Difference]: Without dead ends: 0
[2020-09-24 22:38:03,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2020-09-24 22:38:03,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-24 22:38:03,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-24 22:38:03,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-24 22:38:03,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-24 22:38:03,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34
[2020-09-24 22:38:03,409 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:38:03,410 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-24 22:38:03,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 22:38:03,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-24 22:38:03,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-24 22:38:03,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 22:38:03,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-24 22:38:03,487 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-24 22:38:03,487 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 22:38:03,487 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-24 22:38:03,488 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-24 22:38:03,488 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-24 22:38:03,488 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-24 22:38:03,488 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed.
[2020-09-24 22:38:03,488 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed.
[2020-09-24 22:38:03,488 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 24 32) the Hoare annotation is: true
[2020-09-24 22:38:03,489 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed.
[2020-09-24 22:38:03,489 INFO L268 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed.
[2020-09-24 22:38:03,489 INFO L271 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: true
[2020-09-24 22:38:03,489 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed.
[2020-09-24 22:38:03,489 INFO L268 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed.
[2020-09-24 22:38:03,489 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 24 32) no Hoare annotation was computed.
[2020-09-24 22:38:03,490 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed.
[2020-09-24 22:38:03,490 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed.
[2020-09-24 22:38:03,490 INFO L268 CegarLoopResult]: For program point L26-3(line 26) no Hoare annotation was computed.
[2020-09-24 22:38:03,490 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 24 32) no Hoare annotation was computed.
[2020-09-24 22:38:03,490 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (<= f91_~x 100) (= f91_~x |f91_#in~x|))
[2020-09-24 22:38:03,491 INFO L268 CegarLoopResult]: For program point f91EXIT(lines 15 21) no Hoare annotation was computed.
[2020-09-24 22:38:03,491 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed.
[2020-09-24 22:38:03,491 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed.
[2020-09-24 22:38:03,491 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and (<= f91_~x 100) (= f91_~x |f91_#in~x|) (<= |f91_#t~ret0| 101))
[2020-09-24 22:38:03,491 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed.
[2020-09-24 22:38:03,492 INFO L268 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed.
[2020-09-24 22:38:03,492 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed.
[2020-09-24 22:38:03,492 INFO L268 CegarLoopResult]: For program point L19-5(line 19) no Hoare annotation was computed.
[2020-09-24 22:38:03,492 INFO L268 CegarLoopResult]: For program point L19-6(line 19) no Hoare annotation was computed.
[2020-09-24 22:38:03,492 INFO L271 CegarLoopResult]: At program point f91ENTRY(lines 15 21) the Hoare annotation is: true
[2020-09-24 22:38:03,492 INFO L268 CegarLoopResult]: For program point f91FINAL(lines 15 21) no Hoare annotation was computed.
[2020-09-24 22:38:03,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:38:03 BoogieIcfgContainer
[2020-09-24 22:38:03,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 22:38:03,505 INFO L168 Benchmark]: Toolchain (without parser) took 3412.46 ms. Allocated memory was 143.7 MB in the beginning and 234.4 MB in the end (delta: 90.7 MB). Free memory was 103.4 MB in the beginning and 115.5 MB in the end (delta: -12.1 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB.
[2020-09-24 22:38:03,507 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-24 22:38:03,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.80 ms. Allocated memory is still 143.7 MB. Free memory was 102.7 MB in the beginning and 93.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
[2020-09-24 22:38:03,509 INFO L168 Benchmark]: Boogie Preprocessor took 46.45 ms. Allocated memory is still 143.7 MB. Free memory was 93.5 MB in the beginning and 92.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-09-24 22:38:03,510 INFO L168 Benchmark]: RCFGBuilder took 446.07 ms. Allocated memory was 143.7 MB in the beginning and 206.0 MB in the end (delta: 62.4 MB). Free memory was 91.9 MB in the beginning and 173.3 MB in the end (delta: -81.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2020-09-24 22:38:03,511 INFO L168 Benchmark]: TraceAbstraction took 2556.69 ms. Allocated memory was 206.0 MB in the beginning and 234.4 MB in the end (delta: 28.3 MB). Free memory was 172.6 MB in the beginning and 115.5 MB in the end (delta: 57.1 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB.
[2020-09-24 22:38:03,515 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 352.80 ms. Allocated memory is still 143.7 MB. Free memory was 102.7 MB in the beginning and 93.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 46.45 ms. Allocated memory is still 143.7 MB. Free memory was 93.5 MB in the beginning and 92.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 446.07 ms. Allocated memory was 143.7 MB in the beginning and 206.0 MB in the end (delta: 62.4 MB). Free memory was 91.9 MB in the beginning and 173.3 MB in the end (delta: -81.4 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2556.69 ms. Allocated memory was 206.0 MB in the beginning and 234.4 MB in the end (delta: 28.3 MB). Free memory was 172.6 MB in the beginning and 115.5 MB in the end (delta: 57.1 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 30]: 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
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 39 SDslu, 180 SDs, 0 SdLazy, 180 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 23 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 5005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 7/13 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...