/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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 11:12:25,368 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 11:12:25,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 11:12:25,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 11:12:25,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 11:12:25,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 11:12:25,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 11:12:25,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 11:12:25,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 11:12:25,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 11:12:25,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 11:12:25,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 11:12:25,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 11:12:25,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 11:12:25,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 11:12:25,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 11:12:25,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 11:12:25,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 11:12:25,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 11:12:25,422 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 11:12:25,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 11:12:25,425 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 11:12:25,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 11:12:25,427 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 11:12:25,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 11:12:25,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 11:12:25,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 11:12:25,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 11:12:25,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 11:12:25,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 11:12:25,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 11:12:25,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 11:12:25,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 11:12:25,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 11:12:25,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 11:12:25,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 11:12:25,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 11:12:25,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 11:12:25,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 11:12:25,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 11:12:25,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 11:12:25,445 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 11:12:25,495 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 11:12:25,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 11:12:25,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 11:12:25,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 11:12:25,498 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 11:12:25,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 11:12:25,499 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 11:12:25,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 11:12:25,500 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 11:12:25,500 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 11:12:25,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 11:12:25,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 11:12:25,501 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 11:12:25,502 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 11:12:25,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 11:12:25,502 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 11:12:25,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 11:12:25,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 11:12:25,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 11:12:25,503 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 11:12:25,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 11:12:25,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:12:25,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 11:12:25,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 11:12:25,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 11:12:25,505 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 11:12:25,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 11:12:25,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 11:12:25,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 11:12:25,506 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true;
[2020-09-25 11:12:25,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 11:12:26,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 11:12:26,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 11:12:26,010 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 11:12:26,011 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 11:12:26,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i
[2020-09-25 11:12:26,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0334616ba/b6340900910d4db6bb3bd8f5b89f762b/FLAG3cd631e4b
[2020-09-25 11:12:26,709 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 11:12:26,710 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i
[2020-09-25 11:12:26,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0334616ba/b6340900910d4db6bb3bd8f5b89f762b/FLAG3cd631e4b
[2020-09-25 11:12:26,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0334616ba/b6340900910d4db6bb3bd8f5b89f762b
[2020-09-25 11:12:26,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 11:12:27,004 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 11:12:27,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 11:12:27,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 11:12:27,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 11:12:27,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:12:26" (1/1) ...
[2020-09-25 11:12:27,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144c4f0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27, skipping insertion in model container
[2020-09-25 11:12:27,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:12:26" (1/1) ...
[2020-09-25 11:12:27,033 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 11:12:27,102 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 11:12:27,594 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:12:27,611 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 11:12:27,665 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:12:27,725 INFO L208 MainTranslator]: Completed translation
[2020-09-25 11:12:27,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27 WrapperNode
[2020-09-25 11:12:27,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 11:12:27,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 11:12:27,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 11:12:27,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 11:12:27,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,765 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (1/1) ...
[2020-09-25 11:12:27,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 11:12:27,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 11:12:27,806 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 11:12:27,806 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 11:12:27,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (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 11:12:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 11:12:27,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 11:12:27,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 11:12:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-09-25 11:12:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-09-25 11:12:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-09-25 11:12:27,884 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-09-25 11:12:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-09-25 11:12:27,885 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-09-25 11:12:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-09-25 11:12:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-09-25 11:12:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-09-25 11:12:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-09-25 11:12:27,886 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-09-25 11:12:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-09-25 11:12:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-09-25 11:12:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-09-25 11:12:27,888 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-09-25 11:12:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-09-25 11:12:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-09-25 11:12:27,889 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-09-25 11:12:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-09-25 11:12:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-09-25 11:12:27,890 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-09-25 11:12:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-09-25 11:12:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-09-25 11:12:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-09-25 11:12:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-09-25 11:12:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-09-25 11:12:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-09-25 11:12:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-09-25 11:12:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-09-25 11:12:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-09-25 11:12:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-09-25 11:12:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-09-25 11:12:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-09-25 11:12:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-09-25 11:12:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-09-25 11:12:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-09-25 11:12:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-09-25 11:12:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-09-25 11:12:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-09-25 11:12:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-09-25 11:12:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-09-25 11:12:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-09-25 11:12:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-09-25 11:12:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-09-25 11:12:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-09-25 11:12:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-09-25 11:12:27,895 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-09-25 11:12:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-09-25 11:12:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-09-25 11:12:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-09-25 11:12:27,896 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-09-25 11:12:27,897 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-09-25 11:12:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-09-25 11:12:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 11:12:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-09-25 11:12:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-09-25 11:12:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-09-25 11:12:27,898 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-09-25 11:12:27,899 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2020-09-25 11:12:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-09-25 11:12:27,900 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-09-25 11:12:27,901 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-09-25 11:12:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-09-25 11:12:27,902 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-09-25 11:12:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-09-25 11:12:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-09-25 11:12:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-09-25 11:12:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-09-25 11:12:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-09-25 11:12:27,903 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-09-25 11:12:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-09-25 11:12:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-09-25 11:12:27,904 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-09-25 11:12:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-09-25 11:12:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-09-25 11:12:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-09-25 11:12:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-09-25 11:12:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-09-25 11:12:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-09-25 11:12:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-09-25 11:12:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-09-25 11:12:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-09-25 11:12:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-09-25 11:12:27,907 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2020-09-25 11:12:27,908 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-09-25 11:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 11:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 11:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 11:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 11:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 11:12:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 11:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 11:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 11:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 11:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 11:12:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 11:12:28,492 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 11:12:28,492 INFO L295 CfgBuilder]: Removed 9 assume(true) statements.
[2020-09-25 11:12:28,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:12:28 BoogieIcfgContainer
[2020-09-25 11:12:28,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 11:12:28,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 11:12:28,506 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 11:12:28,512 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 11:12:28,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:12:26" (1/3) ...
[2020-09-25 11:12:28,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9d255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:12:28, skipping insertion in model container
[2020-09-25 11:12:28,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:12:27" (2/3) ...
[2020-09-25 11:12:28,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9d255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:12:28, skipping insertion in model container
[2020-09-25 11:12:28,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:12:28" (3/3) ...
[2020-09-25 11:12:28,517 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i
[2020-09-25 11:12:28,530 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 11:12:28,541 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations.
[2020-09-25 11:12:28,565 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2020-09-25 11:12:28,608 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 11:12:28,609 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 11:12:28,609 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 11:12:28,609 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 11:12:28,609 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 11:12:28,609 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 11:12:28,609 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 11:12:28,610 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 11:12:28,654 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states.
[2020-09-25 11:12:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-09-25 11:12:28,673 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:12:28,677 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]
[2020-09-25 11:12:28,678 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:12:28,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:12:28,687 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times
[2020-09-25 11:12:28,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:12:28,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143283878]
[2020-09-25 11:12:28,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:12:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:12:28,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:29,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:12:29,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 11:12:29,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 11:12:29,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675
[2020-09-25 11:12:29,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:12:29,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:12:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 11:12:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 11:12:29,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 11:12:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 11:12:29,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:12:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:12:29,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:29,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:12:29,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 11:12:29,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:12:29,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 11:12:29,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:12:29,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:12:29,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:12:29,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:12:29,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:12:29,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:12:29,857 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 11:12:29,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143283878]
[2020-09-25 11:12:29,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:12:29,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 11:12:29,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939241019]
[2020-09-25 11:12:29,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 11:12:29,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:12:29,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 11:12:29,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 11:12:29,890 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 9 states.
[2020-09-25 11:12:30,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:12:30,514 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions.
[2020-09-25 11:12:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 11:12:30,517 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20
[2020-09-25 11:12:30,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:12:30,534 INFO L225 Difference]: With dead ends: 280
[2020-09-25 11:12:30,534 INFO L226 Difference]: Without dead ends: 153
[2020-09-25 11:12:30,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240
[2020-09-25 11:12:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2020-09-25 11:12:30,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85.
[2020-09-25 11:12:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states.
[2020-09-25 11:12:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions.
[2020-09-25 11:12:30,613 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 20
[2020-09-25 11:12:30,613 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:12:30,613 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions.
[2020-09-25 11:12:30,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 11:12:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions.
[2020-09-25 11:12:30,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-25 11:12:30,616 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:12:30,616 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:12:30,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 11:12:30,617 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:12:30,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:12:30,617 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times
[2020-09-25 11:12:30,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:12:30,618 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854010677]
[2020-09-25 11:12:30,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:12:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:12:30,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:30,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:31,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:12:31,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 11:12:31,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 11:12:31,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760
[2020-09-25 11:12:31,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:12:31,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:12:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 11:12:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 11:12:31,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-09-25 11:12:31,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:12:31,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:12:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:12:31,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:31,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:12:31,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 11:12:31,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:12:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 11:12:31,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:12:31,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:12:31,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:12:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:12:31,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:12:31,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:12:31,608 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 11:12:31,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854010677]
[2020-09-25 11:12:31,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:12:31,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 11:12:31,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353525464]
[2020-09-25 11:12:31,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 11:12:31,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:12:31,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 11:12:31,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2020-09-25 11:12:31,616 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 10 states.
[2020-09-25 11:12:32,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:12:32,071 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions.
[2020-09-25 11:12:32,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 11:12:32,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31
[2020-09-25 11:12:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:12:32,077 INFO L225 Difference]: With dead ends: 88
[2020-09-25 11:12:32,077 INFO L226 Difference]: Without dead ends: 86
[2020-09-25 11:12:32,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2020-09-25 11:12:32,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2020-09-25 11:12:32,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83.
[2020-09-25 11:12:32,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states.
[2020-09-25 11:12:32,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions.
[2020-09-25 11:12:32,106 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 31
[2020-09-25 11:12:32,107 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:12:32,107 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions.
[2020-09-25 11:12:32,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 11:12:32,108 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions.
[2020-09-25 11:12:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-09-25 11:12:32,110 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:12:32,111 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]
[2020-09-25 11:12:32,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 11:12:32,112 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:12:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:12:32,114 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times
[2020-09-25 11:12:32,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:12:32,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405577871]
[2020-09-25 11:12:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:12:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:12:32,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:32,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:33,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:12:34,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:12:34,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 11:12:34,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 11:12:34,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2210
[2020-09-25 11:12:34,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:12:34,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:12:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13
[2020-09-25 11:12:34,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 11:12:34,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 11:12:34,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 11:12:34,422 ERROR L253 erpolLogProxyWrapper]: Interpolant 16 not inductive
[2020-09-25 11:12:34,446 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 11:12:34,448 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: generated interpolants did not pass sanity check
at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219)
at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:849)
at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:155)
at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:256)
at de.uni_freiburg.informatik.ultimate.smtinterpol.muses.MusEnumerationScript.getInterpolants(MusEnumerationScript.java:150)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:191)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:285)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.<init>(NestedInterpolantsBuilder.java:166)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:326)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:97)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:75)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:127)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[2020-09-25 11:12:34,457 INFO L168 Benchmark]: Toolchain (without parser) took 7454.84 ms. Allocated memory was 140.0 MB in the beginning and 282.1 MB in the end (delta: 142.1 MB). Free memory was 101.0 MB in the beginning and 184.7 MB in the end (delta: -83.6 MB). Peak memory consumption was 120.0 MB. Max. memory is 7.1 GB.
[2020-09-25 11:12:34,458 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2020-09-25 11:12:34,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.16 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 169.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB.
[2020-09-25 11:12:34,460 INFO L168 Benchmark]: Boogie Preprocessor took 78.56 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 167.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
[2020-09-25 11:12:34,461 INFO L168 Benchmark]: RCFGBuilder took 699.38 ms. Allocated memory is still 202.9 MB. Free memory was 167.0 MB in the beginning and 117.4 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB.
[2020-09-25 11:12:34,462 INFO L168 Benchmark]: TraceAbstraction took 5946.41 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 116.8 MB in the beginning and 184.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB.
[2020-09-25 11:12:34,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 719.16 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 100.4 MB in the beginning and 169.7 MB in the end (delta: -69.3 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 78.56 ms. Allocated memory is still 202.9 MB. Free memory was 169.7 MB in the beginning and 167.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 699.38 ms. Allocated memory is still 202.9 MB. Free memory was 167.0 MB in the beginning and 117.4 MB in the end (delta: 49.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 5946.41 ms. Allocated memory was 202.9 MB in the beginning and 282.1 MB in the end (delta: 79.2 MB). Free memory was 116.8 MB in the beginning and 184.7 MB in the end (delta: -67.9 MB). Peak memory consumption was 72.8 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: generated interpolants did not pass sanity check
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: generated interpolants did not pass sanity check: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:219)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...