/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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/verifythis/tree_del_iter.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 22:57:42,987 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 22:57:42,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 22:57:43,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 22:57:43,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 22:57:43,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 22:57:43,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 22:57:43,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 22:57:43,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 22:57:43,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 22:57:43,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 22:57:43,064 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 22:57:43,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 22:57:43,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 22:57:43,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 22:57:43,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 22:57:43,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 22:57:43,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 22:57:43,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 22:57:43,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 22:57:43,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 22:57:43,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 22:57:43,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 22:57:43,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 22:57:43,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 22:57:43,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 22:57:43,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 22:57:43,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 22:57:43,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 22:57:43,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 22:57:43,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 22:57:43,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 22:57:43,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 22:57:43,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 22:57:43,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 22:57:43,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 22:57:43,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 22:57:43,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 22:57:43,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 22:57:43,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 22:57:43,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 22:57:43,090 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
[2020-09-24 22:57:43,117 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 22:57:43,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 22:57:43,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 22:57:43,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 22:57:43,119 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 22:57:43,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 22:57:43,119 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 22:57:43,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 22:57:43,120 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 22:57:43,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 22:57:43,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 22:57:43,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 22:57:43,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 22:57:43,121 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 22:57:43,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 22:57:43,121 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 22:57:43,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 22:57:43,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 22:57:43,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 22:57:43,122 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 22:57:43,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 22:57:43,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 22:57:43,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 22:57:43,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 22:57:43,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 22:57:43,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 22:57:43,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 22:57:43,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 22:57:43,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 22:57:43,124 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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;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=HIGHLEXORDER;log-additional-information=true;
[2020-09-24 22:57:43,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 22:57:43,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 22:57:43,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 22:57:43,617 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 22:57:43,617 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 22:57:43,618 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/tree_del_iter.c
[2020-09-24 22:57:43,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ac834b82/11e95420c80f4fcfbb0ec19ed444f19b/FLAG2aa8abd0b
[2020-09-24 22:57:44,263 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 22:57:44,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/verifythis/tree_del_iter.c
[2020-09-24 22:57:44,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ac834b82/11e95420c80f4fcfbb0ec19ed444f19b/FLAG2aa8abd0b
[2020-09-24 22:57:44,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0ac834b82/11e95420c80f4fcfbb0ec19ed444f19b
[2020-09-24 22:57:44,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 22:57:44,580 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 22:57:44,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 22:57:44,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 22:57:44,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 22:57:44,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:44" (1/1) ...
[2020-09-24 22:57:44,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24e77054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:44, skipping insertion in model container
[2020-09-24 22:57:44,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 10:57:44" (1/1) ...
[2020-09-24 22:57:44,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 22:57:44,631 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 22:57:44,859 WARN L1484 CHandler]: Possible shadowing of function min
[2020-09-24 22:57:44,876 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:57:44,892 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 22:57:44,915 WARN L1484 CHandler]: Possible shadowing of function min
[2020-09-24 22:57:44,927 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 22:57:45,041 INFO L208 MainTranslator]: Completed translation
[2020-09-24 22:57:45,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45 WrapperNode
[2020-09-24 22:57:45,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 22:57:45,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 22:57:45,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 22:57:45,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 22:57:45,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (1/1) ...
[2020-09-24 22:57:45,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 22:57:45,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 22:57:45,108 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 22:57:45,108 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 22:57:45,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (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
[2020-09-24 22:57:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 22:57:45,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 22:57:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_cycle_if_not
[2020-09-24 22:57:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 22:57:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree
[2020-09-24 22:57:45,183 INFO L138 BoogieDeclarations]: Found implementation of procedure min
[2020-09-24 22:57:45,184 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_del
[2020-09-24 22:57:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_inorder
[2020-09-24 22:57:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure size
[2020-09-24 22:57:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure task
[2020-09-24 22:57:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 22:57:45,185 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit
[2020-09-24 22:57:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2020-09-24 22:57:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 22:57:45,186 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2020-09-24 22:57:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 22:57:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2020-09-24 22:57:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure assume_cycle_if_not
[2020-09-24 22:57:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 22:57:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 22:57:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree
[2020-09-24 22:57:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 22:57:45,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 22:57:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-09-24 22:57:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure min
[2020-09-24 22:57:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 22:57:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-09-24 22:57:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure tree_del
[2020-09-24 22:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 22:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure tree_inorder
[2020-09-24 22:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure size
[2020-09-24 22:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure task
[2020-09-24 22:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 22:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit
[2020-09-24 22:57:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 22:57:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 22:57:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 22:57:45,783 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 22:57:45,783 INFO L295 CfgBuilder]: Removed 3 assume(true) statements.
[2020-09-24 22:57:45,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:45 BoogieIcfgContainer
[2020-09-24 22:57:45,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 22:57:45,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 22:57:45,797 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 22:57:45,801 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 22:57:45,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 10:57:44" (1/3) ...
[2020-09-24 22:57:45,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282ca236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:45, skipping insertion in model container
[2020-09-24 22:57:45,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 10:57:45" (2/3) ...
[2020-09-24 22:57:45,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@282ca236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 10:57:45, skipping insertion in model container
[2020-09-24 22:57:45,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 10:57:45" (3/3) ...
[2020-09-24 22:57:45,806 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_del_iter.c
[2020-09-24 22:57:45,818 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 22:57:45,832 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 22:57:45,855 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 22:57:45,902 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 22:57:45,902 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 22:57:45,902 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 22:57:45,902 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 22:57:45,903 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 22:57:45,903 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 22:57:45,903 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 22:57:45,903 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 22:57:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states.
[2020-09-24 22:57:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-24 22:57:45,958 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:45,960 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:45,960 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:45,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1657225032, now seen corresponding path program 1 times
[2020-09-24 22:57:45,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:45,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915237357]
[2020-09-24 22:57:45,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:46,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:46,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:46,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83
[2020-09-24 22:57:46,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:46,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 649
[2020-09-24 22:57:46,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 22:57:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43
[2020-09-24 22:57:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11
[2020-09-24 22:57:46,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16
[2020-09-24 22:57:46,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:47,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 22:57:47,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:47,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:47,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:47,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-09-24 22:57:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:47,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:57:47,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:47,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:47,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:47,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:47,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-09-24 22:57:47,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:47,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:57:47,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:47,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:47,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:47,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 22:57:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:47,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:57:47,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 22:57:47,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:47,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:57:47,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 22:57:47,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2020-09-24 22:57:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:57:47,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19
[2020-09-24 22:57:47,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:57:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:57:47,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:57:47,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-24 22:57:47,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2020-09-24 22:57:47,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 22:57:47,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 22:57:47,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:47,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6
[2020-09-24 22:57:47,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:47,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2020-09-24 22:57:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:47,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:47,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:47,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 22:57:47,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:47,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:57:47,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10
[2020-09-24 22:57:47,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:47,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:47,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 22:57:47,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915237357]
[2020-09-24 22:57:47,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 22:57:47,312 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2020-09-24 22:57:47,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352575420]
[2020-09-24 22:57:47,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 22:57:47,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:47,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 22:57:47,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2020-09-24 22:57:47,342 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 11 states.
[2020-09-24 22:57:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:48,657 INFO L93 Difference]: Finished difference Result 366 states and 427 transitions.
[2020-09-24 22:57:48,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2020-09-24 22:57:48,662 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 60
[2020-09-24 22:57:48,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:48,690 INFO L225 Difference]: With dead ends: 366
[2020-09-24 22:57:48,690 INFO L226 Difference]: Without dead ends: 210
[2020-09-24 22:57:48,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306
[2020-09-24 22:57:48,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2020-09-24 22:57:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 196.
[2020-09-24 22:57:48,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states.
[2020-09-24 22:57:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 220 transitions.
[2020-09-24 22:57:48,831 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 220 transitions. Word has length 60
[2020-09-24 22:57:48,832 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:48,832 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 220 transitions.
[2020-09-24 22:57:48,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 22:57:48,832 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 220 transitions.
[2020-09-24 22:57:48,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2020-09-24 22:57:48,837 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:48,838 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2020-09-24 22:57:48,838 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 22:57:48,838 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:48,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash -290171790, now seen corresponding path program 1 times
[2020-09-24 22:57:48,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:48,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563133803]
[2020-09-24 22:57:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:48,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:48,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:49,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107
[2020-09-24 22:57:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:57:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4275
[2020-09-24 22:57:53,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 22:57:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39
[2020-09-24 22:57:53,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56
[2020-09-24 22:57:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 22:57:53,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:57:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:53,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:57:53,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:53,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-09-24 22:57:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:53,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:57:53,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-09-24 22:57:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:53,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:57:53,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:57:53,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:57:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 22:57:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35
[2020-09-24 22:57:53,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69
[2020-09-24 22:57:53,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:57:53,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32
[2020-09-24 22:57:53,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 22:57:53,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 22:57:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:53,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:57:53,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:57:53,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:57:53,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2020-09-24 22:57:53,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:57:53,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:57:53,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:57:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:57:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-09-24 22:57:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:57:53,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 22:57:53,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:57:53,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:57:53,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2020-09-24 22:57:53,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 22:57:53,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 22:57:53,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:57:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:57:53,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 22:57:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:57:53,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-09-24 22:57:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:53,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:53,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:57:53,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 22:57:53,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:57:53,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26
[2020-09-24 22:57:53,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:57:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:57:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:57:53,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 22:57:53,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:57:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-09-24 22:57:53,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563133803]
[2020-09-24 22:57:53,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:57:53,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11
[2020-09-24 22:57:53,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441377484]
[2020-09-24 22:57:53,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states
[2020-09-24 22:57:53,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:57:53,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2020-09-24 22:57:53,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2020-09-24 22:57:53,821 INFO L87 Difference]: Start difference. First operand 196 states and 220 transitions. Second operand 11 states.
[2020-09-24 22:57:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:57:55,308 INFO L93 Difference]: Finished difference Result 340 states and 382 transitions.
[2020-09-24 22:57:55,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2020-09-24 22:57:55,309 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80
[2020-09-24 22:57:55,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:57:55,313 INFO L225 Difference]: With dead ends: 340
[2020-09-24 22:57:55,313 INFO L226 Difference]: Without dead ends: 215
[2020-09-24 22:57:55,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342
[2020-09-24 22:57:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2020-09-24 22:57:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 203.
[2020-09-24 22:57:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states.
[2020-09-24 22:57:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 229 transitions.
[2020-09-24 22:57:55,363 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 229 transitions. Word has length 80
[2020-09-24 22:57:55,363 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:57:55,363 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 229 transitions.
[2020-09-24 22:57:55,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states.
[2020-09-24 22:57:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 229 transitions.
[2020-09-24 22:57:55,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2020-09-24 22:57:55,373 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:57:55,374 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:57:55,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 22:57:55,374 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:57:55,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:57:55,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1268161097, now seen corresponding path program 1 times
[2020-09-24 22:57:55,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:57:55,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483817241]
[2020-09-24 22:57:55,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:57:55,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:57:55,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:55,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:55,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:57:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143
[2020-09-24 22:58:00,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4
[2020-09-24 22:58:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018
[2020-09-24 22:58:00,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6
[2020-09-24 22:58:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27
[2020-09-24 22:58:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68
[2020-09-24 22:58:00,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:00,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:58:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:00,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:58:00,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:00,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:00,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-09-24 22:58:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:00,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:58:00,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:00,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:00,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-09-24 22:58:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:00,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 22:58:00,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:58:00,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8
[2020-09-24 22:58:00,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:00,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2020-09-24 22:58:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35
[2020-09-24 22:58:00,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 22:58:00,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60
[2020-09-24 22:58:00,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:58:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:58:00,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-24 22:58:00,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:00,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 22:58:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:00,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:58:00,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:00,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:58:00,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:00,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2020-09-24 22:58:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:00,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 22:58:00,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:58:00,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:00,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2020-09-24 22:58:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:00,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-24 22:58:00,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:00,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:58:00,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:00,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2020-09-24 22:58:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 22:58:00,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:00,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:00,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 22:58:00,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:00,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2020-09-24 22:58:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:00,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:00,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:00,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-24 22:58:00,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125
[2020-09-24 22:58:00,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:58:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:58:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45
[2020-09-24 22:58:00,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:01,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 22:58:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:01,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:01,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:01,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 22:58:01,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:01,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-24 22:58:01,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:01,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 22:58:01,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 22:58:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:01,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:01,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 22:58:01,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-24 22:58:01,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:01,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 22:58:01,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:01,061 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2020-09-24 22:58:01,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483817241]
[2020-09-24 22:58:01,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:58:01,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13
[2020-09-24 22:58:01,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426737023]
[2020-09-24 22:58:01,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states
[2020-09-24 22:58:01,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:58:01,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2020-09-24 22:58:01,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156
[2020-09-24 22:58:01,066 INFO L87 Difference]: Start difference. First operand 203 states and 229 transitions. Second operand 13 states.
[2020-09-24 22:58:02,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:58:02,595 INFO L93 Difference]: Finished difference Result 366 states and 414 transitions.
[2020-09-24 22:58:02,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2020-09-24 22:58:02,595 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 112
[2020-09-24 22:58:02,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:58:02,601 INFO L225 Difference]: With dead ends: 366
[2020-09-24 22:58:02,601 INFO L226 Difference]: Without dead ends: 217
[2020-09-24 22:58:02,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506
[2020-09-24 22:58:02,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2020-09-24 22:58:02,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 205.
[2020-09-24 22:58:02,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states.
[2020-09-24 22:58:02,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 232 transitions.
[2020-09-24 22:58:02,642 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 232 transitions. Word has length 112
[2020-09-24 22:58:02,642 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:58:02,642 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 232 transitions.
[2020-09-24 22:58:02,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2020-09-24 22:58:02,643 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 232 transitions.
[2020-09-24 22:58:02,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2020-09-24 22:58:02,646 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:58:02,647 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 22:58:02,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 22:58:02,647 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:02,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:02,647 INFO L82 PathProgramCache]: Analyzing trace with hash 311371809, now seen corresponding path program 1 times
[2020-09-24 22:58:02,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:02,648 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [648693680]
[2020-09-24 22:58:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:02,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:02,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:02,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:07,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:07,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173
[2020-09-24 22:58:07,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 22:58:07,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011
[2020-09-24 22:58:07,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:07,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7
[2020-09-24 22:58:07,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19
[2020-09-24 22:58:07,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106
[2020-09-24 22:58:07,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:07,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 22:58:07,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:07,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:07,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:07,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:07,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:07,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 22:58:07,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:07,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 22:58:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:07,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 22:58:07,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:07,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-09-24 22:58:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:07,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:07,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:07,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:07,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:07,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-24 22:58:07,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 22:58:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:07,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:58:07,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:07,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-09-24 22:58:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:07,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:07,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:07,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:07,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-24 22:58:07,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 22:58:07,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73
[2020-09-24 22:58:07,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:07,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:58:07,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:58:07,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37
[2020-09-24 22:58:07,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2020-09-24 22:58:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:08,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11
[2020-09-24 22:58:08,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:58:08,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2020-09-24 22:58:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:08,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 22:58:08,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:58:08,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2020-09-24 22:58:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35
[2020-09-24 22:58:08,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-24 22:58:08,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79
[2020-09-24 22:58:08,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:58:08,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:58:08,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31
[2020-09-24 22:58:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2020-09-24 22:58:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:08,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-24 22:58:08,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:58:08,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2020-09-24 22:58:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11
[2020-09-24 22:58:08,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-24 22:58:08,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7
[2020-09-24 22:58:08,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2020-09-24 22:58:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 22:58:08,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-24 22:58:08,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 22:58:08,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2020-09-24 22:58:08,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9
[2020-09-24 22:58:08,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:08,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5
[2020-09-24 22:58:08,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2020-09-24 22:58:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49
[2020-09-24 22:58:08,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99
[2020-09-24 22:58:08,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-24 22:58:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3
[2020-09-24 22:58:08,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45
[2020-09-24 22:58:08,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 22:58:08,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-09-24 22:58:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 22:58:08,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:08,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 22:58:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:08,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2020-09-24 22:58:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 22:58:08,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 22:58:08,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-24 22:58:08,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13
[2020-09-24 22:58:08,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 22:58:08,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 22:58:08,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER
[2020-09-24 22:58:08,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 22:58:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 22:58:08,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-24 22:58:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 22:58:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked.
[2020-09-24 22:58:08,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [648693680]
[2020-09-24 22:58:08,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences.
[2020-09-24 22:58:08,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16
[2020-09-24 22:58:08,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601423078]
[2020-09-24 22:58:08,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states
[2020-09-24 22:58:08,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 22:58:08,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2020-09-24 22:58:08,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240
[2020-09-24 22:58:08,627 INFO L87 Difference]: Start difference. First operand 205 states and 232 transitions. Second operand 16 states.
[2020-09-24 22:58:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 22:58:10,716 INFO L93 Difference]: Finished difference Result 368 states and 416 transitions.
[2020-09-24 22:58:10,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2020-09-24 22:58:10,717 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 138
[2020-09-24 22:58:10,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 22:58:10,720 INFO L225 Difference]: With dead ends: 368
[2020-09-24 22:58:10,720 INFO L226 Difference]: Without dead ends: 216
[2020-09-24 22:58:10,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=132, Invalid=624, Unknown=0, NotChecked=0, Total=756
[2020-09-24 22:58:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states.
[2020-09-24 22:58:10,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 207.
[2020-09-24 22:58:10,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states.
[2020-09-24 22:58:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 235 transitions.
[2020-09-24 22:58:10,737 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 235 transitions. Word has length 138
[2020-09-24 22:58:10,737 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 22:58:10,737 INFO L479 AbstractCegarLoop]: Abstraction has 207 states and 235 transitions.
[2020-09-24 22:58:10,737 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states.
[2020-09-24 22:58:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 235 transitions.
[2020-09-24 22:58:10,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2020-09-24 22:58:10,740 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 22:58:10,740 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2020-09-24 22:58:10,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-09-24 22:58:10,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 22:58:10,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 22:58:10,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1130815571, now seen corresponding path program 1 times
[2020-09-24 22:58:10,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 22:58:10,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659286621]
[2020-09-24 22:58:10,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 22:58:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 22:58:10,784 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 22:58:10,784 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 22:58:10,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-09-24 22:58:10,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 10:58:10 BoogieIcfgContainer
[2020-09-24 22:58:10,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 22:58:10,820 INFO L168 Benchmark]: Toolchain (without parser) took 26241.72 ms. Allocated memory was 146.3 MB in the beginning and 416.8 MB in the end (delta: 270.5 MB). Free memory was 102.4 MB in the beginning and 135.7 MB in the end (delta: -33.3 MB). Peak memory consumption was 237.2 MB. Max. memory is 7.1 GB.
[2020-09-24 22:58:10,820 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-24 22:58:10,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.02 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 181.7 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
[2020-09-24 22:58:10,822 INFO L168 Benchmark]: Boogie Preprocessor took 64.76 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 178.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB.
[2020-09-24 22:58:10,823 INFO L168 Benchmark]: RCFGBuilder took 686.38 ms. Allocated memory is still 203.4 MB. Free memory was 178.5 MB in the beginning and 134.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB.
[2020-09-24 22:58:10,824 INFO L168 Benchmark]: TraceAbstraction took 25019.51 ms. Allocated memory was 203.4 MB in the beginning and 416.8 MB in the end (delta: 213.4 MB). Free memory was 133.5 MB in the beginning and 135.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 211.1 MB. Max. memory is 7.1 GB.
[2020-09-24 22:58:10,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 461.02 ms. Allocated memory was 146.3 MB in the beginning and 203.4 MB in the end (delta: 57.1 MB). Free memory was 101.8 MB in the beginning and 181.7 MB in the end (delta: -79.9 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 64.76 ms. Allocated memory is still 203.4 MB. Free memory was 181.7 MB in the beginning and 178.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 686.38 ms. Allocated memory is still 203.4 MB. Free memory was 178.5 MB in the beginning and 134.2 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 25019.51 ms. Allocated memory was 203.4 MB in the beginning and 416.8 MB in the end (delta: 213.4 MB). Free memory was 133.5 MB in the beginning and 135.7 MB in the end (delta: -2.2 MB). Peak memory consumption was 211.1 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 14]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L108] CALL, EXPR nondet_tree()
[L23] COND FALSE !(__VERIFIER_nondet_bool())
[L26] struct node *n = (struct node *)malloc(sizeof(struct node));
[L27] n->data = __VERIFIER_nondet_int()
[L28] CALL, EXPR nondet_tree()
[L23] COND TRUE __VERIFIER_nondet_bool()
[L24] return 0;
[L28] RET, EXPR nondet_tree()
[L28] n->left = nondet_tree()
[L29] CALL, EXPR nondet_tree()
[L23] COND TRUE __VERIFIER_nondet_bool()
[L24] return 0;
[L29] RET, EXPR nondet_tree()
[L29] n->right = nondet_tree()
[L30] return n;
[L108] RET, EXPR nondet_tree()
[L108] CALL task(nondet_tree())
[L84] CALL, EXPR min(t)
[L35] COND FALSE !(!n)
[L38] EXPR n->data
[L38] int a = n->data;
[L39] EXPR n->left
[L39] CALL, EXPR min(n->left)
[L35] COND TRUE !n
[L36] return 2147483647;
[L39] RET, EXPR min(n->left)
[L39] int b = min(n->left);
[L40] EXPR n->right
[L40] CALL, EXPR min(n->right)
[L35] COND TRUE !n
[L36] return 2147483647;
[L40] RET, EXPR min(n->right)
[L40] int c = min(n->right);
[L41] COND TRUE b <= a && b <= c
[L41] return b;
[L84] RET, EXPR min(t)
[L84] int a = min(t);
[L85] int b;
[L87] CALL, EXPR size(t)
[L79] COND FALSE !(!t)
[L80] EXPR t->left
[L80] CALL, EXPR size(t->left)
[L79] COND TRUE !t
[L79] return 0;
[L80] RET, EXPR size(t->left)
[L80] EXPR t->right
[L80] CALL, EXPR size(t->right)
[L79] COND TRUE !t
[L79] return 0;
[L80] RET, EXPR size(t->right)
[L80] return size(t->left) + size(t->right) + 1;
[L87] RET, EXPR size(t)
[L87] int n = size(t);
[L88] CALL assume_cycle_if_not(n != 0)
[L9] COND FALSE !(!cond)
[L88] RET assume_cycle_if_not(n != 0)
[L89] EXPR, FCALL calloc(n, sizeof(int))
[L89] int *x = calloc(n, sizeof(int));
[L90] CALL tree_inorder(t, x, n)
[L68] COND FALSE !(!t)
[L71] EXPR t->left
[L71] CALL, EXPR tree_inorder(t->left, a, i)
[L68] COND TRUE !t
[L69] return i;
[L71] RET, EXPR tree_inorder(t->left, a, i)
[L71] i = tree_inorder(t->left, a, i)
[L72] EXPR i++
[L72] EXPR t->data
[L72] a[i++] = t->data
[L73] EXPR t->right
[L73] CALL, EXPR tree_inorder(t->right, a, i)
[L68] COND TRUE !t
[L69] return i;
[L73] RET, EXPR tree_inorder(t->right, a, i)
[L73] i = tree_inorder(t->right, a, i)
[L74] return i;
[L90] RET tree_inorder(t, x, n)
[L91] EXPR x[0]
[L91] CALL __VERIFIER_assert(a == x[0])
[L14] COND TRUE !cond
[L14] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 12 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.8s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 716 SDtfs, 1870 SDslu, 2054 SDs, 0 SdLazy, 4412 SolverSat, 576 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=207occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 47 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 549 NumberOfCodeBlocks, 549 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 295418 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 70/90 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...