/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=WIDEST --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/alt_test.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:13:48,912 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:13:48,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:13:48,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:13:48,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:13:48,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:13:48,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 03:13:48,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 03:13:48,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 03:13:48,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 03:13:48,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 03:13:48,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 03:13:48,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:13:48,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:13:48,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:13:48,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:13:48,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:13:48,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:13:48,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:13:48,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:13:48,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:13:48,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:13:48,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:13:48,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:13:48,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:13:48,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:13:48,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:13:48,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:13:48,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 03:13:48,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 03:13:48,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:13:48,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:13:48,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:13:48,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:13:48,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:13:48,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 03:13:48,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 03:13:48,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 03:13:48,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 03:13:48,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 03:13:48,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:13:48,985 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 03:13:49,012 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 03:13:49,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:13:49,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:13:49,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 03:13:49,014 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 03:13:49,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 03:13:49,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 03:13:49,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 03:13:49,017 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 03:13:49,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:13:49,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:13:49,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:13:49,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:13:49,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:13:49,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 03:13:49,020 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true;
[2020-09-25 03:13:49,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:13:49,522 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:13:49,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:13:49,528 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 03:13:49,529 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 03:13:49,530 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/alt_test.i
[2020-09-25 03:13:49,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/535e31cc4/31e9f55c677749f6b7ca046160e8671e/FLAGca30fb51c
[2020-09-25 03:13:50,230 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 03:13:50,230 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/alt_test.i
[2020-09-25 03:13:50,247 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/535e31cc4/31e9f55c677749f6b7ca046160e8671e/FLAGca30fb51c
[2020-09-25 03:13:50,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/535e31cc4/31e9f55c677749f6b7ca046160e8671e
[2020-09-25 03:13:50,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:13:50,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:13:50,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:13:50,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:13:50,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:13:50,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:50" (1/1) ...
[2020-09-25 03:13:50,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adf6174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:50, skipping insertion in model container
[2020-09-25 03:13:50,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:13:50" (1/1) ...
[2020-09-25 03:13:50,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 03:13:50,580 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:13:51,048 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:13:51,161 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 03:13:51,207 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:13:51,367 INFO L208 MainTranslator]: Completed translation
[2020-09-25 03:13:51,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51 WrapperNode
[2020-09-25 03:13:51,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:13:51,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:13:51,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:13:51,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:13:51,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (1/1) ...
[2020-09-25 03:13:51,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:13:51,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:13:51,444 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:13:51,444 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:13:51,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (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 03:13:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:13:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:13:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert
[2020-09-25 03:13:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:13:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure l_malloc
[2020-09-25 03:13:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure l_free
[2020-09-25 03:13:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:13:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure __underflow
[2020-09-25 03:13:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure __uflow
[2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure __overflow
[2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_getc
[2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_putc
[2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_feof
[2020-09-25 03:13:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ferror
[2020-09-25 03:13:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_peekc_locked
[2020-09-25 03:13:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_flockfile
[2020-09-25 03:13:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_funlockfile
[2020-09-25 03:13:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile
[2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfscanf
[2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_vfprintf
[2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_padn
[2020-09-25 03:13:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_sgetn
[2020-09-25 03:13:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekoff
[2020-09-25 03:13:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_seekpos
[2020-09-25 03:13:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure _IO_free_backup_area
[2020-09-25 03:13:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure remove
[2020-09-25 03:13:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure rename
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure renameat
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tmpfile
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tmpnam_r
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure tempnam
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure fclose
[2020-09-25 03:13:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure fflush
[2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_unlocked
[2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fopen
[2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure freopen
[2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fdopen
[2020-09-25 03:13:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure fmemopen
[2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure open_memstream
[2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf
[2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setvbuf
[2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setbuffer
[2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure setlinebuf
[2020-09-25 03:13:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf
[2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure printf
[2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf
[2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure vfprintf
[2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure vprintf
[2020-09-25 03:13:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure vsprintf
[2020-09-25 03:13:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf
[2020-09-25 03:13:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure vsnprintf
[2020-09-25 03:13:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure vdprintf
[2020-09-25 03:13:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure dprintf
[2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure fscanf
[2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure scanf
[2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf
[2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure vfscanf
[2020-09-25 03:13:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure vscanf
[2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure vsscanf
[2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc
[2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getc
[2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getchar
[2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getc_unlocked
[2020-09-25 03:13:51,559 INFO L130 BoogieDeclarations]: Found specification of procedure getchar_unlocked
[2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc_unlocked
[2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure fputc
[2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure putc
[2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure putchar
[2020-09-25 03:13:51,560 INFO L130 BoogieDeclarations]: Found specification of procedure fputc_unlocked
[2020-09-25 03:13:51,561 INFO L130 BoogieDeclarations]: Found specification of procedure putc_unlocked
[2020-09-25 03:13:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure putchar_unlocked
[2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure getw
[2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure putw
[2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure fgets
[2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure gets
[2020-09-25 03:13:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure __getdelim
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure getdelim
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure getline
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure fputs
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure puts
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure ungetc
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure fread
[2020-09-25 03:13:51,564 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite
[2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure fread_unlocked
[2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite_unlocked
[2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure fseek
[2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure ftell
[2020-09-25 03:13:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure rewind
[2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure fseeko
[2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure ftello
[2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure fgetpos
[2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure fsetpos
[2020-09-25 03:13:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure feof
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ferror
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr_unlocked
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure feof_unlocked
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ferror_unlocked
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure perror
[2020-09-25 03:13:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure fileno
[2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure fileno_unlocked
[2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure popen
[2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure pclose
[2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ctermid
[2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure flockfile
[2020-09-25 03:13:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ftrylockfile
[2020-09-25 03:13:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure funlockfile
[2020-09-25 03:13:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-09-25 03:13:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-09-25 03:13:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-09-25 03:13:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-09-25 03:13:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-09-25 03:13:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-09-25 03:13:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-09-25 03:13:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-09-25 03:13:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-09-25 03:13:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-09-25 03:13:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-09-25 03:13:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-09-25 03:13:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-09-25 03:13:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-09-25 03:13:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-09-25 03:13:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-09-25 03:13:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-09-25 03:13:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-09-25 03:13:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-09-25 03:13:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-09-25 03:13:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-09-25 03:13:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-09-25 03:13:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 03:13:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-09-25 03:13:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-09-25 03:13:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-09-25 03:13:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-09-25 03:13:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure __secure_getenv
[2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-09-25 03:13:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-09-25 03:13:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-09-25 03:13:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-09-25 03:13:51,600 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-09-25 03:13:51,601 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-09-25 03:13:51,602 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure posix_openpt
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure l_malloc
[2020-09-25 03:13:51,603 INFO L130 BoogieDeclarations]: Found specification of procedure l_free
[2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:13:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:13:52,241 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:13:52,241 INFO L295 CfgBuilder]: Removed 0 assume(true) statements.
[2020-09-25 03:13:52,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:52 BoogieIcfgContainer
[2020-09-25 03:13:52,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:13:52,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:13:52,256 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:13:52,260 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:13:52,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:13:50" (1/3) ...
[2020-09-25 03:13:52,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661971dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:52, skipping insertion in model container
[2020-09-25 03:13:52,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:13:51" (2/3) ...
[2020-09-25 03:13:52,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661971dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:13:52, skipping insertion in model container
[2020-09-25 03:13:52,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:13:52" (3/3) ...
[2020-09-25 03:13:52,278 INFO L109 eAbstractionObserver]: Analyzing ICFG alt_test.i
[2020-09-25 03:13:52,290 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:13:52,301 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 03:13:52,324 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 03:13:52,352 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:13:52,352 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 03:13:52,352 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:13:52,352 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:13:52,353 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:13:52,353 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 03:13:52,353 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:13:52,353 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:13:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states.
[2020-09-25 03:13:52,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2020-09-25 03:13:52,386 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:13:52,387 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]
[2020-09-25 03:13:52,388 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:13:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:13:52,396 INFO L82 PathProgramCache]: Analyzing trace with hash -464537204, now seen corresponding path program 1 times
[2020-09-25 03:13:52,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:13:52,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657475937]
[2020-09-25 03:13:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:13:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:52,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:53,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:53,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39
[2020-09-25 03:13:53,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:13:53,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 755
[2020-09-25 03:13:53,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-25 03:13:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23
[2020-09-25 03:13:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-25 03:13:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-25 03:13:53,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:13:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:53,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:53,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:53,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 03:13:53,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:53,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 03:13:53,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:53,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:13:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:13:53,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:13:53,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 03:13:53,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-25 03:13:53,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:53,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:53,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:53,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:53,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134
[2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:53,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 03:13:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:13:53,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 03:13:53,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:53,839 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 03:13:53,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657475937]
[2020-09-25 03:13:53,847 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:13:53,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 03:13:53,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044019264]
[2020-09-25 03:13:53,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 03:13:53,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:13:53,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 03:13:53,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2020-09-25 03:13:53,881 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 10 states.
[2020-09-25 03:13:54,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:13:54,438 INFO L93 Difference]: Finished difference Result 76 states and 88 transitions.
[2020-09-25 03:13:54,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-25 03:13:54,440 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26
[2020-09-25 03:13:54,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:13:54,454 INFO L225 Difference]: With dead ends: 76
[2020-09-25 03:13:54,455 INFO L226 Difference]: Without dead ends: 37
[2020-09-25 03:13:54,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272
[2020-09-25 03:13:54,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2020-09-25 03:13:54,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 33.
[2020-09-25 03:13:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states.
[2020-09-25 03:13:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions.
[2020-09-25 03:13:54,518 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26
[2020-09-25 03:13:54,518 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:13:54,519 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions.
[2020-09-25 03:13:54,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 03:13:54,519 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions.
[2020-09-25 03:13:54,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2020-09-25 03:13:54,520 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:13:54,520 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]
[2020-09-25 03:13:54,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:13:54,521 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:13:54,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:13:54,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1961589014, now seen corresponding path program 1 times
[2020-09-25 03:13:54,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:13:54,522 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469842784]
[2020-09-25 03:13:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:13:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:54,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:54,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40
[2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101
[2020-09-25 03:13:54,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24
[2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 03:13:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:54,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:13:54,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:54,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:13:54,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:13:54,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:54,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-25 03:13:54,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:54,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:54,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 03:13:54,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:54,748 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 03:13:54,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469842784]
[2020-09-25 03:13:54,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:13:54,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 03:13:54,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350359612]
[2020-09-25 03:13:54,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 03:13:54,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:13:54,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 03:13:54,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 03:13:54,753 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 5 states.
[2020-09-25 03:13:54,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:13:54,858 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions.
[2020-09-25 03:13:54,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 03:13:54,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27
[2020-09-25 03:13:54,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:13:54,860 INFO L225 Difference]: With dead ends: 40
[2020-09-25 03:13:54,861 INFO L226 Difference]: Without dead ends: 36
[2020-09-25 03:13:54,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2020-09-25 03:13:54,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-09-25 03:13:54,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-09-25 03:13:54,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-09-25 03:13:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions.
[2020-09-25 03:13:54,870 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 27
[2020-09-25 03:13:54,871 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:13:54,871 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions.
[2020-09-25 03:13:54,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 03:13:54,871 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions.
[2020-09-25 03:13:54,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2020-09-25 03:13:54,872 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:13:54,872 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:13:54,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:13:54,873 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:13:54,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:13:54,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1381039993, now seen corresponding path program 1 times
[2020-09-25 03:13:54,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:13:54,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815519749]
[2020-09-25 03:13:54,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:13:54,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:54,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:54,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:55,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:55,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:55,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076
[2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:55,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8
[2020-09-25 03:13:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21
[2020-09-25 03:13:55,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 03:13:55,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:56,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:13:56,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:56,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:56,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:56,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 03:13:56,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:56,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:13:56,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:13:56,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:13:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-09-25 03:13:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:56,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:56,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14
[2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48
[2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:56,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5
[2020-09-25 03:13:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:13:56,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 03:13:56,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2020-09-25 03:13:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:13:56,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:13:56,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28
[2020-09-25 03:13:56,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-25 03:13:56,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:13:56,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 03:13:56,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815519749]
[2020-09-25 03:13:56,236 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:13:56,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-09-25 03:13:56,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171844678]
[2020-09-25 03:13:56,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-25 03:13:56,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:13:56,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-25 03:13:56,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132
[2020-09-25 03:13:56,238 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 12 states.
[2020-09-25 03:13:56,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:13:56,535 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions.
[2020-09-25 03:13:56,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-25 03:13:56,535 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 34
[2020-09-25 03:13:56,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:13:56,537 INFO L225 Difference]: With dead ends: 51
[2020-09-25 03:13:56,537 INFO L226 Difference]: Without dead ends: 36
[2020-09-25 03:13:56,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342
[2020-09-25 03:13:56,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-09-25 03:13:56,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-09-25 03:13:56,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-09-25 03:13:56,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions.
[2020-09-25 03:13:56,544 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 34
[2020-09-25 03:13:56,545 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:13:56,545 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions.
[2020-09-25 03:13:56,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-25 03:13:56,545 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions.
[2020-09-25 03:13:56,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2020-09-25 03:13:56,546 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:13:56,547 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:13:56,547 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 03:13:56,547 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:13:56,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:13:56,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1342711683, now seen corresponding path program 1 times
[2020-09-25 03:13:56,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:13:56,548 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794826777]
[2020-09-25 03:13:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:13:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 03:13:56,566 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 03:13:56,567 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 03:13:56,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 03:13:56,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:13:56 BoogieIcfgContainer
[2020-09-25 03:13:56,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:13:56,601 INFO L168 Benchmark]: Toolchain (without parser) took 6101.76 ms. Allocated memory was 139.5 MB in the beginning and 248.5 MB in the end (delta: 109.1 MB). Free memory was 101.5 MB in the beginning and 101.5 MB in the end (delta: -1.3 kB). Peak memory consumption was 109.1 MB. Max. memory is 7.1 GB.
[2020-09-25 03:13:56,604 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 03:13:56,605 INFO L168 Benchmark]: CACSL2BoogieTranslator took 866.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 153.6 MB in the end (delta: -52.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB.
[2020-09-25 03:13:56,606 INFO L168 Benchmark]: Boogie Preprocessor took 74.18 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 150.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
[2020-09-25 03:13:56,607 INFO L168 Benchmark]: RCFGBuilder took 807.55 ms. Allocated memory is still 202.9 MB. Free memory was 150.2 MB in the beginning and 91.0 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB.
[2020-09-25 03:13:56,611 INFO L168 Benchmark]: TraceAbstraction took 4340.18 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 90.3 MB in the beginning and 101.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB.
[2020-09-25 03:13:56,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 139.5 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 866.97 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 100.8 MB in the beginning and 153.6 MB in the end (delta: -52.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 74.18 ms. Allocated memory is still 202.9 MB. Free memory was 153.6 MB in the beginning and 150.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 807.55 ms. Allocated memory is still 202.9 MB. Free memory was 150.2 MB in the beginning and 91.0 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 4340.18 ms. Allocated memory was 202.9 MB in the beginning and 248.5 MB in the end (delta: 45.6 MB). Free memory was 90.3 MB in the beginning and 101.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 1601]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L1606] int globalState = 0;
[L1612] CALL, EXPR l_malloc(sizeof(int))
[L1619] void *retVal = malloc(size);
[L1620] COND TRUE retVal != ((void *)0)
[L1621] globalState=1
[L1622] return retVal;
[L1612] RET, EXPR l_malloc(sizeof(int))
[L1612] int *a = (int*) l_malloc(sizeof(int));
[L1613] CALL l_free(a)
[L1629] COND TRUE ptr!=((void *)0)
[L1629] (globalState == 1) ? (0) : __blast_assert ()
[L1630] globalState = 0
[L1613] RET l_free(a)
[L1614] CALL l_free(a)
[L1629] COND TRUE ptr!=((void *)0)
[L1629] (globalState == 1) ? (0) : __blast_assert ()
[L1629] CALL __blast_assert ()
[L1601] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 106 SDslu, 284 SDs, 0 SdLazy, 373 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 9691 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 incorrect!
Received shutdown request...