/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test11.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 13:27:14,232 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 13:27:14,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 13:27:14,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 13:27:14,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 13:27:14,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 13:27:14,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 13:27:14,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 13:27:14,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 13:27:14,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 13:27:14,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 13:27:14,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 13:27:14,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 13:27:14,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 13:27:14,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 13:27:14,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 13:27:14,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 13:27:14,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 13:27:14,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 13:27:14,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 13:27:14,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 13:27:14,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 13:27:14,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 13:27:14,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 13:27:14,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 13:27:14,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 13:27:14,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 13:27:14,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 13:27:14,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 13:27:14,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 13:27:14,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 13:27:14,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 13:27:14,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 13:27:14,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 13:27:14,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 13:27:14,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 13:27:14,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 13:27:14,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 13:27:14,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 13:27:14,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 13:27:14,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 13:27:14,357 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
[2020-09-25 13:27:14,403 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 13:27:14,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 13:27:14,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 13:27:14,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 13:27:14,406 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 13:27:14,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 13:27:14,407 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 13:27:14,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 13:27:14,408 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 13:27:14,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 13:27:14,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 13:27:14,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 13:27:14,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 13:27:14,410 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 13:27:14,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 13:27:14,410 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 13:27:14,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 13:27:14,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 13:27:14,411 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 13:27:14,411 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 13:27:14,411 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 13:27:14,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 13:27:14,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 13:27:14,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 13:27:14,412 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 13:27:14,412 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 13:27:14,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 13:27:14,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 13:27:14,413 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 13:27:14,413 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true;
[2020-09-25 13:27:14,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 13:27:14,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 13:27:14,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 13:27:14,905 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 13:27:14,905 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 13:27:14,906 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test11.c
[2020-09-25 13:27:14,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca13eb5c0/c60a4bd5a76a4c66857c7e495afb2fb9/FLAG4e404f5d7
[2020-09-25 13:27:15,491 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 13:27:15,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test11.c
[2020-09-25 13:27:15,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca13eb5c0/c60a4bd5a76a4c66857c7e495afb2fb9/FLAG4e404f5d7
[2020-09-25 13:27:15,836 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca13eb5c0/c60a4bd5a76a4c66857c7e495afb2fb9
[2020-09-25 13:27:15,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 13:27:15,855 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 13:27:15,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 13:27:15,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 13:27:15,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 13:27:15,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:27:15" (1/1) ...
[2020-09-25 13:27:15,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec2d0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:15, skipping insertion in model container
[2020-09-25 13:27:15,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:27:15" (1/1) ...
[2020-09-25 13:27:15,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 13:27:15,907 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 13:27:16,215 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:27:16,229 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 13:27:16,249 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 13:27:16,265 INFO L208 MainTranslator]: Completed translation
[2020-09-25 13:27:16,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16 WrapperNode
[2020-09-25 13:27:16,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 13:27:16,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 13:27:16,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 13:27:16,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 13:27:16,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,392 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (1/1) ...
[2020-09-25 13:27:16,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 13:27:16,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 13:27:16,401 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 13:27:16,401 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 13:27:16,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (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
[2020-09-25 13:27:16,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 13:27:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 13:27:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy
[2020-09-25 13:27:16,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 13:27:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 13:27:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 13:27:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-09-25 13:27:16,481 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy
[2020-09-25 13:27:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 13:27:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 13:27:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-09-25 13:27:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 13:27:16,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 13:27:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 13:27:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 13:27:16,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 13:27:16,855 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 13:27:16,855 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 13:27:16,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:27:16 BoogieIcfgContainer
[2020-09-25 13:27:16,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 13:27:16,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 13:27:16,862 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 13:27:16,866 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 13:27:16,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:27:15" (1/3) ...
[2020-09-25 13:27:16,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c6733b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:27:16, skipping insertion in model container
[2020-09-25 13:27:16,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:27:16" (2/3) ...
[2020-09-25 13:27:16,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c6733b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:27:16, skipping insertion in model container
[2020-09-25 13:27:16,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:27:16" (3/3) ...
[2020-09-25 13:27:16,870 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c
[2020-09-25 13:27:16,882 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 13:27:16,892 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 13:27:16,913 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 13:27:16,941 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 13:27:16,942 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 13:27:16,942 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 13:27:16,942 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 13:27:16,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 13:27:16,942 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 13:27:16,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 13:27:16,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 13:27:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states.
[2020-09-25 13:27:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2020-09-25 13:27:16,975 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:27:16,976 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:27:16,977 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:27:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:27:16,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1040052544, now seen corresponding path program 1 times
[2020-09-25 13:27:16,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:27:16,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537635724]
[2020-09-25 13:27:16,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:27:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:17,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:17,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:17,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:17,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52
[2020-09-25 13:27:17,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:27:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 650
[2020-09-25 13:27:17,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:17,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:17,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 13:27:17,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 13:27:17,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 13:27:17,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 13:27:18,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:27:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:18,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:18,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:18,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:27:18,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:18,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36
[2020-09-25 13:27:18,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:18,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:18,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 13:27:18,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-25 13:27:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:18,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:18,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:18,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 13:27:18,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:18,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-09-25 13:27:18,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:18,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:27:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:18,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 13:27:18,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:18,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:27:18,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537635724]
[2020-09-25 13:27:18,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:27:18,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 13:27:18,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760472348]
[2020-09-25 13:27:18,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 13:27:18,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:27:18,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 13:27:18,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-09-25 13:27:18,170 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 6 states.
[2020-09-25 13:27:18,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:27:18,480 INFO L93 Difference]: Finished difference Result 93 states and 98 transitions.
[2020-09-25 13:27:18,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2020-09-25 13:27:18,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43
[2020-09-25 13:27:18,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:27:18,497 INFO L225 Difference]: With dead ends: 93
[2020-09-25 13:27:18,498 INFO L226 Difference]: Without dead ends: 59
[2020-09-25 13:27:18,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:27:18,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2020-09-25 13:27:18,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2020-09-25 13:27:18,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states.
[2020-09-25 13:27:18,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions.
[2020-09-25 13:27:18,559 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 43
[2020-09-25 13:27:18,560 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:27:18,560 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions.
[2020-09-25 13:27:18,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 13:27:18,561 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions.
[2020-09-25 13:27:18,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2020-09-25 13:27:18,562 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:27:18,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:27:18,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 13:27:18,563 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:27:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:27:18,564 INFO L82 PathProgramCache]: Analyzing trace with hash -981249608, now seen corresponding path program 1 times
[2020-09-25 13:27:18,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:27:18,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1369880212]
[2020-09-25 13:27:18,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:27:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:18,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:18,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:18,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:18,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55
[2020-09-25 13:27:18,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:27:18,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318
[2020-09-25 13:27:18,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:18,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:18,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 13:27:18,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42
[2020-09-25 13:27:18,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 13:27:18,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:18,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:27:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:18,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:18,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:18,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:27:18,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:18,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 13:27:18,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:18,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:18,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:18,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:18,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-25 13:27:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:18,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:18,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:18,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 13:27:18,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:18,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:27:18,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:19,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:19,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:19,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:27:19,007 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1369880212]
[2020-09-25 13:27:19,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:27:19,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 13:27:19,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662825760]
[2020-09-25 13:27:19,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 13:27:19,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:27:19,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 13:27:19,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 13:27:19,011 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 5 states.
[2020-09-25 13:27:19,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:27:19,196 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions.
[2020-09-25 13:27:19,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 13:27:19,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46
[2020-09-25 13:27:19,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:27:19,199 INFO L225 Difference]: With dead ends: 75
[2020-09-25 13:27:19,199 INFO L226 Difference]: Without dead ends: 59
[2020-09-25 13:27:19,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 13:27:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2020-09-25 13:27:19,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2020-09-25 13:27:19,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states.
[2020-09-25 13:27:19,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions.
[2020-09-25 13:27:19,210 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 46
[2020-09-25 13:27:19,210 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:27:19,211 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions.
[2020-09-25 13:27:19,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 13:27:19,211 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions.
[2020-09-25 13:27:19,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2020-09-25 13:27:19,213 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:27:19,213 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:27:19,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 13:27:19,213 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:27:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:27:19,214 INFO L82 PathProgramCache]: Analyzing trace with hash 176769226, now seen corresponding path program 1 times
[2020-09-25 13:27:19,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:27:19,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1083743217]
[2020-09-25 13:27:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:27:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:19,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:19,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:19,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:19,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58
[2020-09-25 13:27:19,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 13:27:19,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 446
[2020-09-25 13:27:19,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:19,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:19,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-25 13:27:19,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42
[2020-09-25 13:27:19,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 13:27:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:19,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:27:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:19,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:19,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:19,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:27:19,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:19,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15
[2020-09-25 13:27:19,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:19,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:19,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:19,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:19,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-25 13:27:19,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:19,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:19,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:19,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 13:27:19,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:19,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 13:27:19,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:19,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:19,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:19,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:19,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:27:19,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1083743217]
[2020-09-25 13:27:19,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:27:19,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2020-09-25 13:27:19,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806826858]
[2020-09-25 13:27:19,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2020-09-25 13:27:19,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:27:19,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2020-09-25 13:27:19,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:27:19,815 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 8 states.
[2020-09-25 13:27:20,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:27:20,079 INFO L93 Difference]: Finished difference Result 61 states and 61 transitions.
[2020-09-25 13:27:20,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 13:27:20,080 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49
[2020-09-25 13:27:20,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:27:20,081 INFO L225 Difference]: With dead ends: 61
[2020-09-25 13:27:20,081 INFO L226 Difference]: Without dead ends: 55
[2020-09-25 13:27:20,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182
[2020-09-25 13:27:20,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2020-09-25 13:27:20,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2020-09-25 13:27:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2020-09-25 13:27:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions.
[2020-09-25 13:27:20,091 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 49
[2020-09-25 13:27:20,091 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:27:20,091 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions.
[2020-09-25 13:27:20,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2020-09-25 13:27:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions.
[2020-09-25 13:27:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2020-09-25 13:27:20,093 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 13:27:20,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 13:27:20,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 13:27:20,094 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 13:27:20,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 13:27:20,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1988535102, now seen corresponding path program 1 times
[2020-09-25 13:27:20,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 13:27:20,095 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524126101]
[2020-09-25 13:27:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 13:27:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:20,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:20,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:20,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62
[2020-09-25 13:27:20,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:20,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174
[2020-09-25 13:27:20,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:20,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:20,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 13:27:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-25 13:27:20,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36
[2020-09-25 13:27:20,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:20,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 13:27:20,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:20,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:20,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:20,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15
[2020-09-25 13:27:20,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 13:27:20,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:20,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 13:27:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 13:27:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:20,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-25 13:27:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 13:27:20,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 13:27:20,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 13:27:20,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 13:27:20,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 13:27:20,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 13:27:20,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 13:27:20,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 13:27:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 13:27:20,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 13:27:20,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 13:27:20,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 13:27:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 13:27:20,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524126101]
[2020-09-25 13:27:20,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 13:27:20,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2020-09-25 13:27:20,417 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139074867]
[2020-09-25 13:27:20,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-09-25 13:27:20,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 13:27:20,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-09-25 13:27:20,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-09-25 13:27:20,419 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 6 states.
[2020-09-25 13:27:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 13:27:20,593 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions.
[2020-09-25 13:27:20,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 13:27:20,593 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53
[2020-09-25 13:27:20,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 13:27:20,594 INFO L225 Difference]: With dead ends: 55
[2020-09-25 13:27:20,594 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 13:27:20,595 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2020-09-25 13:27:20,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 13:27:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 13:27:20,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 13:27:20,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 13:27:20,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53
[2020-09-25 13:27:20,596 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 13:27:20,597 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 13:27:20,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-09-25 13:27:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 13:27:20,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 13:27:20,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 13:27:20,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 13:27:20,736 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2020-09-25 13:27:20,736 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed.
[2020-09-25 13:27:20,736 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line 5) no Hoare annotation was computed.
[2020-09-25 13:27:20,737 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|))
[2020-09-25 13:27:20,737 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed.
[2020-09-25 13:27:20,737 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed.
[2020-09-25 13:27:20,737 INFO L268 CegarLoopResult]: For program point L5-2(line 5) no Hoare annotation was computed.
[2020-09-25 13:27:20,737 INFO L268 CegarLoopResult]: For program point L5-3(line 5) no Hoare annotation was computed.
[2020-09-25 13:27:20,738 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 13:27:20,738 INFO L268 CegarLoopResult]: For program point get_dummyFINAL(lines 7 10) no Hoare annotation was computed.
[2020-09-25 13:27:20,738 INFO L268 CegarLoopResult]: For program point L9(line 9) no Hoare annotation was computed.
[2020-09-25 13:27:20,738 INFO L271 CegarLoopResult]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true
[2020-09-25 13:27:20,738 INFO L268 CegarLoopResult]: For program point L9-2(line 9) no Hoare annotation was computed.
[2020-09-25 13:27:20,738 INFO L268 CegarLoopResult]: For program point L9-3(line 9) no Hoare annotation was computed.
[2020-09-25 13:27:20,739 INFO L268 CegarLoopResult]: For program point L9-4(line 9) no Hoare annotation was computed.
[2020-09-25 13:27:20,739 INFO L268 CegarLoopResult]: For program point L9-5(line 9) no Hoare annotation was computed.
[2020-09-25 13:27:20,739 INFO L268 CegarLoopResult]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed.
[2020-09-25 13:27:20,739 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 13:27:20,739 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 13:27:20,739 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 13:27:20,739 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 32) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,740 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,741 INFO L268 CegarLoopResult]: For program point L19-3(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,741 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 13:27:20,741 INFO L268 CegarLoopResult]: For program point L19-4(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,741 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-25 13:27:20,741 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-25 13:27:20,741 INFO L268 CegarLoopResult]: For program point L19-6(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,742 INFO L268 CegarLoopResult]: For program point L19-7(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,742 INFO L268 CegarLoopResult]: For program point L19-8(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,742 INFO L268 CegarLoopResult]: For program point L19-9(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,744 INFO L268 CegarLoopResult]: For program point L19-10(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,744 INFO L268 CegarLoopResult]: For program point L19-11(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,745 INFO L268 CegarLoopResult]: For program point L19-12(line 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,746 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed.
[2020-09-25 13:27:20,746 INFO L268 CegarLoopResult]: For program point L24(lines 24 26) no Hoare annotation was computed.
[2020-09-25 13:27:20,747 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed.
[2020-09-25 13:27:20,747 INFO L268 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed.
[2020-09-25 13:27:20,747 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed.
[2020-09-25 13:27:20,747 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed.
[2020-09-25 13:27:20,747 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed.
[2020-09-25 13:27:20,747 INFO L264 CegarLoopResult]: At program point L25(lines 12 32) the Hoare annotation is: false
[2020-09-25 13:27:20,748 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= main_~pc~0.base |main_~#c~0.base|) (not (= |main_~#c~0.base| 0)) (= |main_~#c~0.offset| main_~pc~0.offset))
[2020-09-25 13:27:20,748 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed.
[2020-09-25 13:27:20,748 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed.
[2020-09-25 13:27:20,748 INFO L268 CegarLoopResult]: For program point L17-3(line 17) no Hoare annotation was computed.
[2020-09-25 13:27:20,748 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,750 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 32) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point L13-5(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed.
[2020-09-25 13:27:20,752 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed.
[2020-09-25 13:27:20,753 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 32) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|))
[2020-09-25 13:27:20,753 INFO L268 CegarLoopResult]: For program point L18(lines 18 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,753 INFO L268 CegarLoopResult]: For program point L18-1(lines 18 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,753 INFO L268 CegarLoopResult]: For program point L18-3(lines 18 21) no Hoare annotation was computed.
[2020-09-25 13:27:20,753 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed.
[2020-09-25 13:27:20,753 INFO L268 CegarLoopResult]: For program point L18-4(lines 18 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,754 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed.
[2020-09-25 13:27:20,754 INFO L268 CegarLoopResult]: For program point L18-5(lines 18 19) no Hoare annotation was computed.
[2020-09-25 13:27:20,754 INFO L268 CegarLoopResult]: For program point L14-2(line 14) no Hoare annotation was computed.
[2020-09-25 13:27:20,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 01:27:20 BoogieIcfgContainer
[2020-09-25 13:27:20,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 13:27:20,775 INFO L168 Benchmark]: Toolchain (without parser) took 4920.63 ms. Allocated memory was 146.3 MB in the beginning and 247.5 MB in the end (delta: 101.2 MB). Free memory was 102.5 MB in the beginning and 205.1 MB in the end (delta: -102.6 MB). Peak memory consumption was 109.8 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:20,778 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 13:27:20,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 409.99 ms. Allocated memory is still 146.3 MB. Free memory was 101.8 MB in the beginning and 91.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:20,784 INFO L168 Benchmark]: Boogie Preprocessor took 133.39 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.8 MB in the beginning and 179.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:20,792 INFO L168 Benchmark]: RCFGBuilder took 460.45 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 159.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:20,793 INFO L168 Benchmark]: TraceAbstraction took 3907.69 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 159.3 MB in the beginning and 205.1 MB in the end (delta: -45.7 MB). Peak memory consumption was 110.6 MB. Max. memory is 7.1 GB.
[2020-09-25 13:27:20,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 121.0 MB in the beginning and 120.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 409.99 ms. Allocated memory is still 146.3 MB. Free memory was 101.8 MB in the beginning and 91.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 133.39 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 91.8 MB in the beginning and 179.8 MB in the end (delta: -88.0 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 460.45 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 159.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3907.69 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 159.3 MB in the beginning and 205.1 MB in the end (delta: -45.7 MB). Peak memory consumption was 110.6 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
- InvariantResult [Line: 12]: Loop Invariant
Derived loop invariant: 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 204 SDtfs, 164 SDslu, 401 SDs, 0 SdLazy, 383 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 47 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 46 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 26661 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...