/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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-pthread/cs_stack-1.i


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-adbd35c
[2020-10-14 09:58:36,849 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-14 09:58:36,853 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-14 09:58:36,893 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-14 09:58:36,894 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-14 09:58:36,902 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-14 09:58:36,904 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-14 09:58:36,907 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-14 09:58:36,910 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-14 09:58:36,913 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-14 09:58:36,914 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-14 09:58:36,915 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-14 09:58:36,915 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-14 09:58:36,918 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-14 09:58:36,920 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-14 09:58:36,921 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-14 09:58:36,923 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-14 09:58:36,924 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-14 09:58:36,926 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-14 09:58:36,934 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-14 09:58:36,936 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-14 09:58:36,937 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-14 09:58:36,938 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-14 09:58:36,939 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-14 09:58:36,951 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-14 09:58:36,956 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-14 09:58:36,956 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-14 09:58:36,957 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-14 09:58:36,958 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-14 09:58:36,959 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-14 09:58:36,959 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-14 09:58:36,965 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-14 09:58:36,965 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-14 09:58:36,966 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-14 09:58:36,967 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-14 09:58:36,967 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-14 09:58:36,968 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-14 09:58:36,969 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-14 09:58:36,969 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-14 09:58:36,970 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-14 09:58:36,971 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-14 09:58:36,972 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
[2020-10-14 09:58:37,010 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-14 09:58:37,010 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-14 09:58:37,012 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-14 09:58:37,013 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-14 09:58:37,013 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-14 09:58:37,013 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-14 09:58:37,014 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-14 09:58:37,014 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-14 09:58:37,014 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-14 09:58:37,014 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-14 09:58:37,015 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-14 09:58:37,015 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-14 09:58:37,016 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-14 09:58:37,016 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-14 09:58:37,016 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-14 09:58:37,016 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-14 09:58:37,016 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-14 09:58:37,017 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-14 09:58:37,017 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-14 09:58:37,017 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-14 09:58:37,017 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-14 09:58:37,017 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-14 09:58:37,018 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-14 09:58:37,018 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-14 09:58:37,018 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-14 09:58:37,018 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-14 09:58:37,018 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-14 09:58:37,019 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-14 09:58:37,019 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-14 09:58:37,019 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 -> SequenceOfStatements
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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
[2020-10-14 09:58:37,340 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-14 09:58:37,358 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-14 09:58:37,362 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-14 09:58:37,364 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-14 09:58:37,364 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-14 09:58:37,365 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-pthread/cs_stack-1.i
[2020-10-14 09:58:37,428 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50c31b86e/83653bbe527b4d278c7a046da4d2a9dc/FLAG955d31fef
[2020-10-14 09:58:37,942 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-14 09:58:37,942 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/seq-pthread/cs_stack-1.i
[2020-10-14 09:58:37,965 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50c31b86e/83653bbe527b4d278c7a046da4d2a9dc/FLAG955d31fef
[2020-10-14 09:58:38,177 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50c31b86e/83653bbe527b4d278c7a046da4d2a9dc
[2020-10-14 09:58:38,188 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-14 09:58:38,191 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-14 09:58:38,194 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-14 09:58:38,194 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-14 09:58:38,198 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-14 09:58:38,199 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:58:38" (1/1) ...
[2020-10-14 09:58:38,203 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@131863d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:38, skipping insertion in model container
[2020-10-14 09:58:38,203 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 09:58:38" (1/1) ...
[2020-10-14 09:58:38,213 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-14 09:58:38,289 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-14 09:58:39,041 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-14 09:58:39,075 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-14 09:58:39,231 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-14 09:58:39,453 INFO  L208         MainTranslator]: Completed translation
[2020-10-14 09:58:39,455 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39 WrapperNode
[2020-10-14 09:58:39,456 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-14 09:58:39,457 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-14 09:58:39,457 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-14 09:58:39,458 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-14 09:58:39,478 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,480 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,561 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,561 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,647 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,672 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,698 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (1/1) ...
[2020-10-14 09:58:39,730 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-14 09:58:39,734 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-14 09:58:39,734 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-14 09:58:39,734 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-14 09:58:39,736 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 09:58:39" (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
[2020-10-14 09:58:39,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-14 09:58:39,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-14 09:58:39,844 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$
[2020-10-14 09:58:39,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-10-14 09:58:39,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-10-14 09:58:39,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-10-14 09:58:39,845 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2020-10-14 09:58:39,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2020-10-14 09:58:39,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2020-10-14 09:58:39,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-10-14 09:58:39,847 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_cs
[2020-10-14 09:58:39,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init
[2020-10-14 09:58:39,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_destroy
[2020-10-14 09:58:39,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock
[2020-10-14 09:58:39,848 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock
[2020-10-14 09:58:39,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init
[2020-10-14 09:58:39,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal
[2020-10-14 09:58:39,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_broadcast
[2020-10-14 09:58:39,849 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait
[2020-10-14 09:58:39,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_assert
[2020-10-14 09:58:39,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_assume
[2020-10-14 09:58:39,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_join
[2020-10-14 09:58:39,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure __CS_pthread_create
[2020-10-14 09:58:39,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure error
[2020-10-14 09:58:39,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure inc_top
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure dec_top
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure get_top
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure stack_empty
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure push
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure pop
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure t1
[2020-10-14 09:58:39,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure t2
[2020-10-14 09:58:39,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure main_thread
[2020-10-14 09:58:39,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-14 09:58:39,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-10-14 09:58:39,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-14 09:58:39,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong
[2020-10-14 09:58:39,853 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2020-10-14 09:58:39,853 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-14 09:58:39,855 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-10-14 09:58:39,855 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-14 09:58:39,855 INFO  L130     BoogieDeclarations]: Found specification of procedure __underflow
[2020-10-14 09:58:39,855 INFO  L130     BoogieDeclarations]: Found specification of procedure __uflow
[2020-10-14 09:58:39,855 INFO  L130     BoogieDeclarations]: Found specification of procedure __overflow
[2020-10-14 09:58:39,855 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_getc
[2020-10-14 09:58:39,856 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_putc
[2020-10-14 09:58:39,856 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_feof
[2020-10-14 09:58:39,856 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_ferror
[2020-10-14 09:58:39,856 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_peekc_locked
[2020-10-14 09:58:39,856 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_flockfile
[2020-10-14 09:58:39,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_funlockfile
[2020-10-14 09:58:39,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_ftrylockfile
[2020-10-14 09:58:39,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_vfscanf
[2020-10-14 09:58:39,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_vfprintf
[2020-10-14 09:58:39,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_padn
[2020-10-14 09:58:39,857 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_sgetn
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_seekoff
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_seekpos
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure _IO_free_backup_area
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure remove
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure rename
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure renameat
[2020-10-14 09:58:39,858 INFO  L130     BoogieDeclarations]: Found specification of procedure tmpfile
[2020-10-14 09:58:39,859 INFO  L130     BoogieDeclarations]: Found specification of procedure tmpnam
[2020-10-14 09:58:39,859 INFO  L130     BoogieDeclarations]: Found specification of procedure tmpnam_r
[2020-10-14 09:58:39,859 INFO  L130     BoogieDeclarations]: Found specification of procedure tempnam
[2020-10-14 09:58:39,859 INFO  L130     BoogieDeclarations]: Found specification of procedure fclose
[2020-10-14 09:58:39,860 INFO  L130     BoogieDeclarations]: Found specification of procedure fflush
[2020-10-14 09:58:39,861 INFO  L130     BoogieDeclarations]: Found specification of procedure fflush_unlocked
[2020-10-14 09:58:39,861 INFO  L130     BoogieDeclarations]: Found specification of procedure fopen
[2020-10-14 09:58:39,861 INFO  L130     BoogieDeclarations]: Found specification of procedure freopen
[2020-10-14 09:58:39,862 INFO  L130     BoogieDeclarations]: Found specification of procedure fdopen
[2020-10-14 09:58:39,863 INFO  L130     BoogieDeclarations]: Found specification of procedure fmemopen
[2020-10-14 09:58:39,863 INFO  L130     BoogieDeclarations]: Found specification of procedure open_memstream
[2020-10-14 09:58:39,863 INFO  L130     BoogieDeclarations]: Found specification of procedure setbuf
[2020-10-14 09:58:39,863 INFO  L130     BoogieDeclarations]: Found specification of procedure setvbuf
[2020-10-14 09:58:39,863 INFO  L130     BoogieDeclarations]: Found specification of procedure setbuffer
[2020-10-14 09:58:39,863 INFO  L130     BoogieDeclarations]: Found specification of procedure setlinebuf
[2020-10-14 09:58:39,864 INFO  L130     BoogieDeclarations]: Found specification of procedure fprintf
[2020-10-14 09:58:39,864 INFO  L130     BoogieDeclarations]: Found specification of procedure printf
[2020-10-14 09:58:39,864 INFO  L130     BoogieDeclarations]: Found specification of procedure sprintf
[2020-10-14 09:58:39,864 INFO  L130     BoogieDeclarations]: Found specification of procedure vfprintf
[2020-10-14 09:58:39,864 INFO  L130     BoogieDeclarations]: Found specification of procedure vprintf
[2020-10-14 09:58:39,864 INFO  L130     BoogieDeclarations]: Found specification of procedure vsprintf
[2020-10-14 09:58:39,865 INFO  L130     BoogieDeclarations]: Found specification of procedure snprintf
[2020-10-14 09:58:39,865 INFO  L130     BoogieDeclarations]: Found specification of procedure vsnprintf
[2020-10-14 09:58:39,866 INFO  L130     BoogieDeclarations]: Found specification of procedure vdprintf
[2020-10-14 09:58:39,866 INFO  L130     BoogieDeclarations]: Found specification of procedure dprintf
[2020-10-14 09:58:39,866 INFO  L130     BoogieDeclarations]: Found specification of procedure fscanf
[2020-10-14 09:58:39,866 INFO  L130     BoogieDeclarations]: Found specification of procedure scanf
[2020-10-14 09:58:39,866 INFO  L130     BoogieDeclarations]: Found specification of procedure sscanf
[2020-10-14 09:58:39,867 INFO  L130     BoogieDeclarations]: Found specification of procedure vfscanf
[2020-10-14 09:58:39,867 INFO  L130     BoogieDeclarations]: Found specification of procedure vscanf
[2020-10-14 09:58:39,867 INFO  L130     BoogieDeclarations]: Found specification of procedure vsscanf
[2020-10-14 09:58:39,867 INFO  L130     BoogieDeclarations]: Found specification of procedure fgetc
[2020-10-14 09:58:39,867 INFO  L130     BoogieDeclarations]: Found specification of procedure getc
[2020-10-14 09:58:39,867 INFO  L130     BoogieDeclarations]: Found specification of procedure getchar
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure getc_unlocked
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure getchar_unlocked
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure fgetc_unlocked
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure fputc
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure putc
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure putchar
[2020-10-14 09:58:39,868 INFO  L130     BoogieDeclarations]: Found specification of procedure fputc_unlocked
[2020-10-14 09:58:39,869 INFO  L130     BoogieDeclarations]: Found specification of procedure putc_unlocked
[2020-10-14 09:58:39,869 INFO  L130     BoogieDeclarations]: Found specification of procedure putchar_unlocked
[2020-10-14 09:58:39,869 INFO  L130     BoogieDeclarations]: Found specification of procedure getw
[2020-10-14 09:58:39,869 INFO  L130     BoogieDeclarations]: Found specification of procedure putw
[2020-10-14 09:58:39,869 INFO  L130     BoogieDeclarations]: Found specification of procedure fgets
[2020-10-14 09:58:39,869 INFO  L130     BoogieDeclarations]: Found specification of procedure __getdelim
[2020-10-14 09:58:39,870 INFO  L130     BoogieDeclarations]: Found specification of procedure getdelim
[2020-10-14 09:58:39,870 INFO  L130     BoogieDeclarations]: Found specification of procedure getline
[2020-10-14 09:58:39,870 INFO  L130     BoogieDeclarations]: Found specification of procedure fputs
[2020-10-14 09:58:39,870 INFO  L130     BoogieDeclarations]: Found specification of procedure puts
[2020-10-14 09:58:39,870 INFO  L130     BoogieDeclarations]: Found specification of procedure ungetc
[2020-10-14 09:58:39,870 INFO  L130     BoogieDeclarations]: Found specification of procedure fread
[2020-10-14 09:58:39,871 INFO  L130     BoogieDeclarations]: Found specification of procedure fwrite
[2020-10-14 09:58:39,872 INFO  L130     BoogieDeclarations]: Found specification of procedure fread_unlocked
[2020-10-14 09:58:39,872 INFO  L130     BoogieDeclarations]: Found specification of procedure fwrite_unlocked
[2020-10-14 09:58:39,872 INFO  L130     BoogieDeclarations]: Found specification of procedure fseek
[2020-10-14 09:58:39,872 INFO  L130     BoogieDeclarations]: Found specification of procedure ftell
[2020-10-14 09:58:39,873 INFO  L130     BoogieDeclarations]: Found specification of procedure rewind
[2020-10-14 09:58:39,873 INFO  L130     BoogieDeclarations]: Found specification of procedure fseeko
[2020-10-14 09:58:39,873 INFO  L130     BoogieDeclarations]: Found specification of procedure ftello
[2020-10-14 09:58:39,873 INFO  L130     BoogieDeclarations]: Found specification of procedure fgetpos
[2020-10-14 09:58:39,874 INFO  L130     BoogieDeclarations]: Found specification of procedure fsetpos
[2020-10-14 09:58:39,877 INFO  L130     BoogieDeclarations]: Found specification of procedure clearerr
[2020-10-14 09:58:39,878 INFO  L130     BoogieDeclarations]: Found specification of procedure feof
[2020-10-14 09:58:39,878 INFO  L130     BoogieDeclarations]: Found specification of procedure ferror
[2020-10-14 09:58:39,878 INFO  L130     BoogieDeclarations]: Found specification of procedure clearerr_unlocked
[2020-10-14 09:58:39,878 INFO  L130     BoogieDeclarations]: Found specification of procedure feof_unlocked
[2020-10-14 09:58:39,879 INFO  L130     BoogieDeclarations]: Found specification of procedure ferror_unlocked
[2020-10-14 09:58:39,879 INFO  L130     BoogieDeclarations]: Found specification of procedure perror
[2020-10-14 09:58:39,880 INFO  L130     BoogieDeclarations]: Found specification of procedure fileno
[2020-10-14 09:58:39,880 INFO  L130     BoogieDeclarations]: Found specification of procedure fileno_unlocked
[2020-10-14 09:58:39,880 INFO  L130     BoogieDeclarations]: Found specification of procedure popen
[2020-10-14 09:58:39,881 INFO  L130     BoogieDeclarations]: Found specification of procedure pclose
[2020-10-14 09:58:39,881 INFO  L130     BoogieDeclarations]: Found specification of procedure ctermid
[2020-10-14 09:58:39,881 INFO  L130     BoogieDeclarations]: Found specification of procedure flockfile
[2020-10-14 09:58:39,881 INFO  L130     BoogieDeclarations]: Found specification of procedure ftrylockfile
[2020-10-14 09:58:39,881 INFO  L130     BoogieDeclarations]: Found specification of procedure funlockfile
[2020-10-14 09:58:39,881 INFO  L130     BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-10-14 09:58:39,882 INFO  L130     BoogieDeclarations]: Found specification of procedure atof
[2020-10-14 09:58:39,890 INFO  L130     BoogieDeclarations]: Found specification of procedure atoi
[2020-10-14 09:58:39,890 INFO  L130     BoogieDeclarations]: Found specification of procedure atol
[2020-10-14 09:58:39,890 INFO  L130     BoogieDeclarations]: Found specification of procedure atoll
[2020-10-14 09:58:39,890 INFO  L130     BoogieDeclarations]: Found specification of procedure strtod
[2020-10-14 09:58:39,890 INFO  L130     BoogieDeclarations]: Found specification of procedure strtof
[2020-10-14 09:58:39,891 INFO  L130     BoogieDeclarations]: Found specification of procedure strtold
[2020-10-14 09:58:39,891 INFO  L130     BoogieDeclarations]: Found specification of procedure strtol
[2020-10-14 09:58:39,891 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoul
[2020-10-14 09:58:39,891 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoq
[2020-10-14 09:58:39,891 INFO  L130     BoogieDeclarations]: Found specification of procedure strtouq
[2020-10-14 09:58:39,891 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoll
[2020-10-14 09:58:39,892 INFO  L130     BoogieDeclarations]: Found specification of procedure strtoull
[2020-10-14 09:58:39,892 INFO  L130     BoogieDeclarations]: Found specification of procedure l64a
[2020-10-14 09:58:39,893 INFO  L130     BoogieDeclarations]: Found specification of procedure a64l
[2020-10-14 09:58:39,893 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-10-14 09:58:39,893 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-10-14 09:58:39,893 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint16_identity
[2020-10-14 09:58:39,893 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint32_identity
[2020-10-14 09:58:39,894 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint64_identity
[2020-10-14 09:58:39,894 INFO  L130     BoogieDeclarations]: Found specification of procedure select
[2020-10-14 09:58:39,894 INFO  L130     BoogieDeclarations]: Found specification of procedure pselect
[2020-10-14 09:58:39,894 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-10-14 09:58:39,894 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-10-14 09:58:39,894 INFO  L130     BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-10-14 09:58:39,895 INFO  L130     BoogieDeclarations]: Found specification of procedure random
[2020-10-14 09:58:39,895 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom
[2020-10-14 09:58:39,895 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate
[2020-10-14 09:58:39,895 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate
[2020-10-14 09:58:39,895 INFO  L130     BoogieDeclarations]: Found specification of procedure random_r
[2020-10-14 09:58:39,895 INFO  L130     BoogieDeclarations]: Found specification of procedure srandom_r
[2020-10-14 09:58:39,896 INFO  L130     BoogieDeclarations]: Found specification of procedure initstate_r
[2020-10-14 09:58:39,896 INFO  L130     BoogieDeclarations]: Found specification of procedure setstate_r
[2020-10-14 09:58:39,896 INFO  L130     BoogieDeclarations]: Found specification of procedure rand
[2020-10-14 09:58:39,896 INFO  L130     BoogieDeclarations]: Found specification of procedure srand
[2020-10-14 09:58:39,896 INFO  L130     BoogieDeclarations]: Found specification of procedure rand_r
[2020-10-14 09:58:39,897 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48
[2020-10-14 09:58:39,897 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48
[2020-10-14 09:58:39,897 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48
[2020-10-14 09:58:39,898 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48
[2020-10-14 09:58:39,898 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48
[2020-10-14 09:58:39,898 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48
[2020-10-14 09:58:39,898 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48
[2020-10-14 09:58:39,898 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48
[2020-10-14 09:58:39,898 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48
[2020-10-14 09:58:39,899 INFO  L130     BoogieDeclarations]: Found specification of procedure drand48_r
[2020-10-14 09:58:39,899 INFO  L130     BoogieDeclarations]: Found specification of procedure erand48_r
[2020-10-14 09:58:39,899 INFO  L130     BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-10-14 09:58:39,899 INFO  L130     BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-10-14 09:58:39,899 INFO  L130     BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-10-14 09:58:39,899 INFO  L130     BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-10-14 09:58:39,900 INFO  L130     BoogieDeclarations]: Found specification of procedure srand48_r
[2020-10-14 09:58:39,900 INFO  L130     BoogieDeclarations]: Found specification of procedure seed48_r
[2020-10-14 09:58:39,900 INFO  L130     BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-10-14 09:58:39,900 INFO  L130     BoogieDeclarations]: Found specification of procedure malloc
[2020-10-14 09:58:39,900 INFO  L130     BoogieDeclarations]: Found specification of procedure calloc
[2020-10-14 09:58:39,900 INFO  L130     BoogieDeclarations]: Found specification of procedure realloc
[2020-10-14 09:58:39,901 INFO  L130     BoogieDeclarations]: Found specification of procedure free
[2020-10-14 09:58:39,901 INFO  L130     BoogieDeclarations]: Found specification of procedure alloca
[2020-10-14 09:58:39,901 INFO  L130     BoogieDeclarations]: Found specification of procedure valloc
[2020-10-14 09:58:39,901 INFO  L130     BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-10-14 09:58:39,901 INFO  L130     BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-10-14 09:58:39,902 INFO  L130     BoogieDeclarations]: Found specification of procedure atexit
[2020-10-14 09:58:39,902 INFO  L130     BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-10-14 09:58:39,902 INFO  L130     BoogieDeclarations]: Found specification of procedure on_exit
[2020-10-14 09:58:39,902 INFO  L130     BoogieDeclarations]: Found specification of procedure exit
[2020-10-14 09:58:39,902 INFO  L130     BoogieDeclarations]: Found specification of procedure quick_exit
[2020-10-14 09:58:39,902 INFO  L130     BoogieDeclarations]: Found specification of procedure _Exit
[2020-10-14 09:58:39,903 INFO  L130     BoogieDeclarations]: Found specification of procedure getenv
[2020-10-14 09:58:39,903 INFO  L130     BoogieDeclarations]: Found specification of procedure putenv
[2020-10-14 09:58:39,903 INFO  L130     BoogieDeclarations]: Found specification of procedure setenv
[2020-10-14 09:58:39,903 INFO  L130     BoogieDeclarations]: Found specification of procedure unsetenv
[2020-10-14 09:58:39,903 INFO  L130     BoogieDeclarations]: Found specification of procedure clearenv
[2020-10-14 09:58:39,903 INFO  L130     BoogieDeclarations]: Found specification of procedure mktemp
[2020-10-14 09:58:39,904 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemp
[2020-10-14 09:58:39,904 INFO  L130     BoogieDeclarations]: Found specification of procedure mkstemps
[2020-10-14 09:58:39,904 INFO  L130     BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-10-14 09:58:39,904 INFO  L130     BoogieDeclarations]: Found specification of procedure system
[2020-10-14 09:58:39,904 INFO  L130     BoogieDeclarations]: Found specification of procedure realpath
[2020-10-14 09:58:39,904 INFO  L130     BoogieDeclarations]: Found specification of procedure bsearch
[2020-10-14 09:58:39,905 INFO  L130     BoogieDeclarations]: Found specification of procedure qsort
[2020-10-14 09:58:39,905 INFO  L130     BoogieDeclarations]: Found specification of procedure abs
[2020-10-14 09:58:39,905 INFO  L130     BoogieDeclarations]: Found specification of procedure labs
[2020-10-14 09:58:39,905 INFO  L130     BoogieDeclarations]: Found specification of procedure llabs
[2020-10-14 09:58:39,905 INFO  L130     BoogieDeclarations]: Found specification of procedure div
[2020-10-14 09:58:39,905 INFO  L130     BoogieDeclarations]: Found specification of procedure ldiv
[2020-10-14 09:58:39,906 INFO  L130     BoogieDeclarations]: Found specification of procedure lldiv
[2020-10-14 09:58:39,906 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt
[2020-10-14 09:58:39,906 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt
[2020-10-14 09:58:39,906 INFO  L130     BoogieDeclarations]: Found specification of procedure gcvt
[2020-10-14 09:58:39,906 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt
[2020-10-14 09:58:39,906 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt
[2020-10-14 09:58:39,907 INFO  L130     BoogieDeclarations]: Found specification of procedure qgcvt
[2020-10-14 09:58:39,907 INFO  L130     BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-10-14 09:58:39,907 INFO  L130     BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-10-14 09:58:39,907 INFO  L130     BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-10-14 09:58:39,907 INFO  L130     BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-10-14 09:58:39,907 INFO  L130     BoogieDeclarations]: Found specification of procedure mblen
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure mbtowc
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure wctomb
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure wcstombs
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure rpmatch
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure getsubopt
[2020-10-14 09:58:39,908 INFO  L130     BoogieDeclarations]: Found specification of procedure getloadavg
[2020-10-14 09:58:39,909 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-14 09:58:39,909 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2020-10-14 09:58:39,909 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert
[2020-10-14 09:58:39,909 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-10-14 09:58:39,909 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_cs
[2020-10-14 09:58:39,910 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init
[2020-10-14 09:58:39,914 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_destroy
[2020-10-14 09:58:39,914 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-10-14 09:58:39,915 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-14 09:58:39,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock
[2020-10-14 09:58:39,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock
[2020-10-14 09:58:39,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init
[2020-10-14 09:58:39,915 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal
[2020-10-14 09:58:39,915 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-10-14 09:58:39,916 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-10-14 09:58:39,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_broadcast
[2020-10-14 09:58:39,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait
[2020-10-14 09:58:39,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_assert
[2020-10-14 09:58:39,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_assume
[2020-10-14 09:58:39,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_join
[2020-10-14 09:58:39,917 INFO  L130     BoogieDeclarations]: Found specification of procedure __CS_pthread_create
[2020-10-14 09:58:39,917 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-10-14 09:58:39,917 INFO  L130     BoogieDeclarations]: Found specification of procedure error
[2020-10-14 09:58:39,917 INFO  L130     BoogieDeclarations]: Found specification of procedure inc_top
[2020-10-14 09:58:39,919 INFO  L130     BoogieDeclarations]: Found specification of procedure dec_top
[2020-10-14 09:58:39,919 INFO  L130     BoogieDeclarations]: Found specification of procedure get_top
[2020-10-14 09:58:39,919 INFO  L130     BoogieDeclarations]: Found specification of procedure stack_empty
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure push
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure pop
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure t1
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure t2
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure main_thread
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-14 09:58:39,920 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-14 09:58:39,921 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-14 09:58:39,921 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$
[2020-10-14 09:58:39,921 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-14 09:58:39,921 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-10-14 09:58:39,921 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-14 09:58:40,842 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:40,842 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:40,843 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:40,843 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint L994: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:40,843 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint L994: assume !(0 != ~__CS_ret~0 % 256);#res := 0;
[2020-10-14 09:58:40,843 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:40,843 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint L978-2: SUMMARY for call __CS_cs(); srcloc: null
[2020-10-14 09:58:40,843 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:40,844 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:41,049 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:41,049 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:41,049 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:41,049 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:41,070 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:41,070 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != ~__CS_ret~0 % 256;#res := 0;
[2020-10-14 09:58:42,432 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:42,432 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume 0 != ~__CS_ret~0 % 256;
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume 0 != ~__CS_ret~0 % 256;
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint L922: SUMMARY for call __CS_cs(); srcloc: null
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint L922-1: assume 0 != ~__CS_ret~0 % 256;
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint L922-1: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !(0 != ~__CS_ret~0 % 256);
[2020-10-14 09:58:42,433 INFO  L732   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume 0 != ~__CS_ret~0 % 256;
[2020-10-14 09:58:42,476 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception:
java.lang.NullPointerException
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.addCallTransitionAndReturnTransition(CfgBuilder.java:394)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:269)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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)
[2020-10-14 09:58:42,482 INFO  L168              Benchmark]: Toolchain (without parser) took 4290.86 ms. Allocated memory was 147.8 MB in the beginning and 244.3 MB in the end (delta: 96.5 MB). Free memory was 102.1 MB in the beginning and 163.6 MB in the end (delta: -61.5 MB). Peak memory consumption was 104.7 MB. Max. memory is 7.1 GB.
[2020-10-14 09:58:42,484 INFO  L168              Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
[2020-10-14 09:58:42,486 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 1262.31 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 129.3 MB in the end (delta: -27.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB.
[2020-10-14 09:58:42,487 INFO  L168              Benchmark]: Boogie Preprocessor took 276.32 ms. Allocated memory is still 205.0 MB. Free memory was 129.3 MB in the beginning and 121.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB.
[2020-10-14 09:58:42,488 INFO  L168              Benchmark]: RCFGBuilder took 2745.12 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 121.6 MB in the beginning and 163.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 67.2 MB. Max. memory is 7.1 GB.
[2020-10-14 09:58:42,498 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.18 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 1262.31 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 101.6 MB in the beginning and 129.3 MB in the end (delta: -27.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 276.32 ms. Allocated memory is still 205.0 MB. Free memory was 129.3 MB in the beginning and 121.6 MB in the end (delta: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 2745.12 ms. Allocated memory was 205.0 MB in the beginning and 244.3 MB in the end (delta: 39.3 MB). Free memory was 121.6 MB in the beginning and 163.6 MB in the end (delta: -42.0 MB). Peak memory consumption was 67.2 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder:
  - ExceptionOrErrorResult: NullPointerException: null
    de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: NullPointerException: null: de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.addCallTransitionAndReturnTransition(CfgBuilder.java:394)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...