/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/forester-heap/dll-circular-1.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 03:15:00,744 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 03:15:00,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 03:15:00,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 03:15:00,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 03:15:00,802 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 03:15:00,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 03:15:00,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 03:15:00,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 03:15:00,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 03:15:00,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 03:15:00,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 03:15:00,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 03:15:00,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 03:15:00,823 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 03:15:00,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 03:15:00,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 03:15:00,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 03:15:00,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 03:15:00,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 03:15:00,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 03:15:00,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 03:15:00,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 03:15:00,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 03:15:00,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 03:15:00,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 03:15:00,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 03:15:00,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 03:15:00,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 03:15:00,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 03:15:00,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 03:15:00,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 03:15:00,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 03:15:00,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 03:15:00,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 03:15:00,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 03:15:00,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 03:15:00,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 03:15:00,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 03:15:00,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 03:15:00,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 03:15:00,861 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 03:15:00,908 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 03:15:00,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 03:15:00,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 03:15:00,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 03:15:00,911 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 03:15:00,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 03:15:00,912 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 03:15:00,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 03:15:00,912 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 03:15:00,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 03:15:00,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 03:15:00,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 03:15:00,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 03:15:00,914 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 03:15:00,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 03:15:00,915 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 03:15:00,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 03:15:00,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 03:15:00,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 03:15:00,916 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 03:15:00,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 03:15:00,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 03:15:00,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 03:15:00,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 03:15:00,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 03:15:00,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 03:15:00,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 03:15:00,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 03:15:00,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 03:15:00,918 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 03:15:01,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 03:15:01,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 03:15:01,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 03:15:01,391 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 03:15:01,391 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 03:15:01,392 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/dll-circular-1.i
[2020-09-25 03:15:01,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/043bad04c/8ea213fafc974b0c8547980dfc38232c/FLAG51bcfb4b5
[2020-09-25 03:15:02,112 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 03:15:02,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/forester-heap/dll-circular-1.i
[2020-09-25 03:15:02,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/043bad04c/8ea213fafc974b0c8547980dfc38232c/FLAG51bcfb4b5
[2020-09-25 03:15:02,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/043bad04c/8ea213fafc974b0c8547980dfc38232c
[2020-09-25 03:15:02,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 03:15:02,381 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 03:15:02,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 03:15:02,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 03:15:02,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 03:15:02,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:15:02" (1/1) ...
[2020-09-25 03:15:02,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@424d9305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:02, skipping insertion in model container
[2020-09-25 03:15:02,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:15:02" (1/1) ...
[2020-09-25 03:15:02,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 03:15:02,450 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 03:15:02,941 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:15:02,953 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 03:15:03,001 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 03:15:03,070 INFO L208 MainTranslator]: Completed translation
[2020-09-25 03:15:03,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03 WrapperNode
[2020-09-25 03:15:03,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 03:15:03,073 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 03:15:03,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 03:15:03,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 03:15:03,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (1/1) ...
[2020-09-25 03:15:03,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 03:15:03,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 03:15:03,145 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 03:15:03,145 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 03:15:03,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (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 03:15:03,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 03:15:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 03:15:03,217 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 03:15:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2020-09-25 03:15:03,217 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2020-09-25 03:15:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2020-09-25 03:15:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2020-09-25 03:15:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2020-09-25 03:15:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2020-09-25 03:15:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2020-09-25 03:15:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2020-09-25 03:15:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2020-09-25 03:15:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2020-09-25 03:15:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2020-09-25 03:15:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2020-09-25 03:15:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2020-09-25 03:15:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2020-09-25 03:15:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2020-09-25 03:15:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2020-09-25 03:15:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2020-09-25 03:15:03,221 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2020-09-25 03:15:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2020-09-25 03:15:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2020-09-25 03:15:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2020-09-25 03:15:03,222 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2020-09-25 03:15:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2020-09-25 03:15:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2020-09-25 03:15:03,223 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2020-09-25 03:15:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2020-09-25 03:15:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2020-09-25 03:15:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2020-09-25 03:15:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2020-09-25 03:15:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2020-09-25 03:15:03,224 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2020-09-25 03:15:03,225 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2020-09-25 03:15:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2020-09-25 03:15:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2020-09-25 03:15:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2020-09-25 03:15:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2020-09-25 03:15:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2020-09-25 03:15:03,226 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2020-09-25 03:15:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2020-09-25 03:15:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2020-09-25 03:15:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2020-09-25 03:15:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2020-09-25 03:15:03,227 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2020-09-25 03:15:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2020-09-25 03:15:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 03:15:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-25 03:15:03,228 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure cfree
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2020-09-25 03:15:03,229 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 03:15:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2020-09-25 03:15:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2020-09-25 03:15:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2020-09-25 03:15:03,230 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2020-09-25 03:15:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2020-09-25 03:15:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2020-09-25 03:15:03,231 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2020-09-25 03:15:03,232 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2020-09-25 03:15:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2020-09-25 03:15:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2020-09-25 03:15:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2020-09-25 03:15:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2020-09-25 03:15:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2020-09-25 03:15:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2020-09-25 03:15:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2020-09-25 03:15:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2020-09-25 03:15:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2020-09-25 03:15:03,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2020-09-25 03:15:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2020-09-25 03:15:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 03:15:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 03:15:03,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 03:15:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 03:15:03,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 03:15:03,840 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 03:15:03,841 INFO L295 CfgBuilder]: Removed 9 assume(true) statements.
[2020-09-25 03:15:03,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:15:03 BoogieIcfgContainer
[2020-09-25 03:15:03,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 03:15:03,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 03:15:03,848 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 03:15:03,851 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 03:15:03,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:15:02" (1/3) ...
[2020-09-25 03:15:03,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:15:03, skipping insertion in model container
[2020-09-25 03:15:03,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:15:03" (2/3) ...
[2020-09-25 03:15:03,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1276792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:15:03, skipping insertion in model container
[2020-09-25 03:15:03,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:15:03" (3/3) ...
[2020-09-25 03:15:03,856 INFO L109 eAbstractionObserver]: Analyzing ICFG dll-circular-1.i
[2020-09-25 03:15:03,867 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 03:15:03,877 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations.
[2020-09-25 03:15:03,899 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2020-09-25 03:15:03,931 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 03:15:03,932 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 03:15:03,932 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 03:15:03,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 03:15:03,932 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 03:15:03,932 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 03:15:03,932 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 03:15:03,932 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 03:15:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states.
[2020-09-25 03:15:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2020-09-25 03:15:03,967 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:15:03,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:15:03,969 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:15:03,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:15:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash -740897811, now seen corresponding path program 1 times
[2020-09-25 03:15:03,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:15:03,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1830578272]
[2020-09-25 03:15:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:15:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:04,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:04,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:04,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:04,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27
[2020-09-25 03:15:04,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:15:04,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 675
[2020-09-25 03:15:04,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 03:15:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 03:15:04,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12
[2020-09-25 03:15:04,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 03:15:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:15:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:05,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:05,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:05,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:15:05,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:15:05,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-25 03:15:05,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:15:05,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:15:05,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:15:05,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:15:05,171 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 03:15:05,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1830578272]
[2020-09-25 03:15:05,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:15:05,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2020-09-25 03:15:05,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800429000]
[2020-09-25 03:15:05,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states
[2020-09-25 03:15:05,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:15:05,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2020-09-25 03:15:05,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-09-25 03:15:05,203 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 9 states.
[2020-09-25 03:15:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:15:05,759 INFO L93 Difference]: Finished difference Result 280 states and 337 transitions.
[2020-09-25 03:15:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2020-09-25 03:15:05,761 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20
[2020-09-25 03:15:05,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:15:05,776 INFO L225 Difference]: With dead ends: 280
[2020-09-25 03:15:05,776 INFO L226 Difference]: Without dead ends: 153
[2020-09-25 03:15:05,781 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240
[2020-09-25 03:15:05,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states.
[2020-09-25 03:15:05,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 85.
[2020-09-25 03:15:05,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states.
[2020-09-25 03:15:05,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 91 transitions.
[2020-09-25 03:15:05,843 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 91 transitions. Word has length 20
[2020-09-25 03:15:05,843 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:15:05,843 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 91 transitions.
[2020-09-25 03:15:05,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2020-09-25 03:15:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 91 transitions.
[2020-09-25 03:15:05,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-09-25 03:15:05,845 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:15:05,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:15:05,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 03:15:05,846 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:15:05,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:15:05,847 INFO L82 PathProgramCache]: Analyzing trace with hash 807179936, now seen corresponding path program 1 times
[2020-09-25 03:15:05,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:15:05,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038634450]
[2020-09-25 03:15:05,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:15:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:05,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:06,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:06,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:06,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38
[2020-09-25 03:15:06,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 03:15:06,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739
[2020-09-25 03:15:06,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9
[2020-09-25 03:15:06,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 03:15:06,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23
[2020-09-25 03:15:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:15:06,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:15:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:06,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:06,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:06,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:15:06,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:15:06,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 03:15:06,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:15:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:15:06,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:15:06,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:15:06,767 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 03:15:06,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038634450]
[2020-09-25 03:15:06,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:15:06,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2020-09-25 03:15:06,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746930129]
[2020-09-25 03:15:06,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states
[2020-09-25 03:15:06,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:15:06,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2020-09-25 03:15:06,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2020-09-25 03:15:06,773 INFO L87 Difference]: Start difference. First operand 85 states and 91 transitions. Second operand 10 states.
[2020-09-25 03:15:07,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:15:07,134 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions.
[2020-09-25 03:15:07,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2020-09-25 03:15:07,135 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31
[2020-09-25 03:15:07,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:15:07,136 INFO L225 Difference]: With dead ends: 88
[2020-09-25 03:15:07,137 INFO L226 Difference]: Without dead ends: 86
[2020-09-25 03:15:07,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240
[2020-09-25 03:15:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states.
[2020-09-25 03:15:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83.
[2020-09-25 03:15:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states.
[2020-09-25 03:15:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions.
[2020-09-25 03:15:07,148 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 31
[2020-09-25 03:15:07,148 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:15:07,148 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions.
[2020-09-25 03:15:07,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2020-09-25 03:15:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions.
[2020-09-25 03:15:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2020-09-25 03:15:07,150 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:15:07,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:15:07,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 03:15:07,151 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:15:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:15:07,152 INFO L82 PathProgramCache]: Analyzing trace with hash -988969633, now seen corresponding path program 1 times
[2020-09-25 03:15:07,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:15:07,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [81854172]
[2020-09-25 03:15:07,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:15:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:07,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:09,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:09,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43
[2020-09-25 03:15:09,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 03:15:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2018
[2020-09-25 03:15:09,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15
[2020-09-25 03:15:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14
[2020-09-25 03:15:09,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28
[2020-09-25 03:15:09,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:15:09,496 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 18
[2020-09-25 03:15:09,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:15:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:09,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:09,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:09,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:15:09,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:15:09,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 03:15:09,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:09,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:15:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:15:09,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:15:09,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 03:15:09,728 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 03:15:09,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [81854172]
[2020-09-25 03:15:09,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:15:09,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2020-09-25 03:15:09,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072294924]
[2020-09-25 03:15:09,730 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states
[2020-09-25 03:15:09,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:15:09,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2020-09-25 03:15:09,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182
[2020-09-25 03:15:09,731 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand 14 states.
[2020-09-25 03:15:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:15:10,816 INFO L93 Difference]: Finished difference Result 151 states and 159 transitions.
[2020-09-25 03:15:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2020-09-25 03:15:10,817 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 36
[2020-09-25 03:15:10,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:15:10,819 INFO L225 Difference]: With dead ends: 151
[2020-09-25 03:15:10,820 INFO L226 Difference]: Without dead ends: 149
[2020-09-25 03:15:10,823 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870
[2020-09-25 03:15:10,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states.
[2020-09-25 03:15:10,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 73.
[2020-09-25 03:15:10,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states.
[2020-09-25 03:15:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions.
[2020-09-25 03:15:10,832 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 36
[2020-09-25 03:15:10,832 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:15:10,832 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions.
[2020-09-25 03:15:10,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states.
[2020-09-25 03:15:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions.
[2020-09-25 03:15:10,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2020-09-25 03:15:10,834 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:15:10,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:15:10,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 03:15:10,835 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:15:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:15:10,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1230029085, now seen corresponding path program 1 times
[2020-09-25 03:15:10,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:15:10,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108772037]
[2020-09-25 03:15:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:15:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:10,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:11,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:11,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:11,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:12,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:12,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 03:15:12,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-25 03:15:12,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2092
[2020-09-25 03:15:12,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12
[2020-09-25 03:15:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16
[2020-09-25 03:15:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21
[2020-09-25 03:15:12,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:15:13,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 03:15:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 03:15:13,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 03:15:13,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 03:15:13,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-25 03:15:13,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 03:15:13,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 03:15:13,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST
[2020-09-25 03:15:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 03:15:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 03:15:13,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 03:15:13,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-25 03:15:13,183 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 03:15:13,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108772037]
[2020-09-25 03:15:13,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 03:15:13,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2020-09-25 03:15:13,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416343829]
[2020-09-25 03:15:13,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states
[2020-09-25 03:15:13,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 03:15:13,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2020-09-25 03:15:13,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2020-09-25 03:15:13,205 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand 12 states.
[2020-09-25 03:15:13,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 03:15:13,817 INFO L93 Difference]: Finished difference Result 174 states and 183 transitions.
[2020-09-25 03:15:13,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-09-25 03:15:13,817 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37
[2020-09-25 03:15:13,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 03:15:13,819 INFO L225 Difference]: With dead ends: 174
[2020-09-25 03:15:13,819 INFO L226 Difference]: Without dead ends: 144
[2020-09-25 03:15:13,820 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552
[2020-09-25 03:15:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2020-09-25 03:15:13,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 89.
[2020-09-25 03:15:13,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states.
[2020-09-25 03:15:13,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions.
[2020-09-25 03:15:13,837 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 37
[2020-09-25 03:15:13,837 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 03:15:13,837 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions.
[2020-09-25 03:15:13,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2020-09-25 03:15:13,842 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions.
[2020-09-25 03:15:13,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-09-25 03:15:13,843 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 03:15:13,843 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 03:15:13,843 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-25 03:15:13,844 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 03:15:13,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 03:15:13,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1667005657, now seen corresponding path program 1 times
[2020-09-25 03:15:13,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 03:15:13,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132827840]
[2020-09-25 03:15:13,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 03:15:13,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 03:15:13,869 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 03:15:13,869 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 03:15:13,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-25 03:15:13,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 03:15:13 BoogieIcfgContainer
[2020-09-25 03:15:13,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 03:15:13,903 INFO L168 Benchmark]: Toolchain (without parser) took 11525.42 ms. Allocated memory was 147.8 MB in the beginning and 301.5 MB in the end (delta: 153.6 MB). Free memory was 102.7 MB in the beginning and 177.3 MB in the end (delta: -74.6 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:15:13,904 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 03:15:13,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.18 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 172.3 MB in the end (delta: -70.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
[2020-09-25 03:15:13,907 INFO L168 Benchmark]: Boogie Preprocessor took 71.52 ms. Allocated memory is still 205.0 MB. Free memory was 172.3 MB in the beginning and 169.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB.
[2020-09-25 03:15:13,913 INFO L168 Benchmark]: RCFGBuilder took 701.42 ms. Allocated memory is still 205.0 MB. Free memory was 169.0 MB in the beginning and 119.8 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB.
[2020-09-25 03:15:13,914 INFO L168 Benchmark]: TraceAbstraction took 10052.58 ms. Allocated memory was 205.0 MB in the beginning and 301.5 MB in the end (delta: 96.5 MB). Free memory was 119.8 MB in the beginning and 177.3 MB in the end (delta: -57.5 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB.
[2020-09-25 03:15:13,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.25 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 690.18 ms. Allocated memory was 147.8 MB in the beginning and 205.0 MB in the end (delta: 57.1 MB). Free memory was 102.1 MB in the beginning and 172.3 MB in the end (delta: -70.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 71.52 ms. Allocated memory is still 205.0 MB. Free memory was 172.3 MB in the beginning and 169.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 701.42 ms. Allocated memory is still 205.0 MB. Free memory was 169.0 MB in the beginning and 119.8 MB in the end (delta: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 10052.58 ms. Allocated memory was 205.0 MB in the beginning and 301.5 MB in the end (delta: 96.5 MB). Free memory was 119.8 MB in the beginning and 177.3 MB in the end (delta: -57.5 MB). Peak memory consumption was 39.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 1023]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L986] SLL* head = malloc(sizeof(SLL));
[L987] head->next = head
[L988] head->data = 0
[L990] SLL* x = head;
[L991] int state = 1;
[L994] COND FALSE !(__VERIFIER_nondet_int())
[L1016] x->data = state
[L1018] EXPR head->next
[L1018] x = head->next
[L1019] COND FALSE !(!(((void*)0) != x))
[L1021] EXPR x->data
[L1021] COND TRUE x->data != 0
[L1023] EXPR x->next
[L1023] EXPR x->next->data
[L1023] EXPR x->next->data != 0 && x->data > x->next->data
[L1023] EXPR x->data
[L1023] EXPR x->next
[L1023] EXPR x->next->data
[L1023] EXPR x->next->data != 0 && x->data > x->next->data
[L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data)
[L1023] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 96 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 311 SDtfs, 1274 SDslu, 1491 SDs, 0 SdLazy, 970 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 202 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 33832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...