/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/zonotope_3.c


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


This is Ultimate 0.1.25-adbd35c
[2020-10-14 04:45:14,360 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-14 04:45:14,363 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-14 04:45:14,391 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-14 04:45:14,391 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-14 04:45:14,392 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-14 04:45:14,394 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-14 04:45:14,396 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-14 04:45:14,397 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-14 04:45:14,398 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-14 04:45:14,399 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-10-14 04:45:14,400 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-14 04:45:14,401 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-14 04:45:14,402 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-14 04:45:14,403 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-14 04:45:14,404 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-14 04:45:14,405 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-14 04:45:14,406 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-14 04:45:14,407 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-14 04:45:14,409 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-14 04:45:14,411 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-14 04:45:14,412 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-14 04:45:14,413 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-14 04:45:14,414 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-14 04:45:14,416 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-14 04:45:14,417 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-14 04:45:14,417 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-14 04:45:14,418 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-14 04:45:14,418 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-14 04:45:14,419 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-14 04:45:14,419 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-14 04:45:14,420 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-14 04:45:14,421 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-10-14 04:45:14,421 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-10-14 04:45:14,422 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-14 04:45:14,423 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-14 04:45:14,423 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-14 04:45:14,423 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-14 04:45:14,424 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-14 04:45:14,425 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-14 04:45:14,425 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-14 04:45:14,426 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-10-14 04:45:14,449 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-14 04:45:14,449 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-14 04:45:14,454 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-14 04:45:14,454 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-14 04:45:14,454 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-14 04:45:14,455 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-14 04:45:14,455 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-14 04:45:14,455 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-14 04:45:14,455 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-14 04:45:14,455 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-14 04:45:14,455 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-14 04:45:14,456 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-14 04:45:14,456 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-14 04:45:14,459 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-14 04:45:14,459 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-14 04:45:14,460 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-14 04:45:14,460 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-14 04:45:14,460 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-14 04:45:14,460 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-14 04:45:14,461 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-14 04:45:14,461 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-14 04:45:14,461 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-14 04:45:14,461 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-14 04:45:14,461 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-14 04:45:14,462 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-14 04:45:14,462 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-14 04:45:14,462 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-14 04:45:14,462 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-14 04:45:14,462 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-14 04:45:14,463 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true;
[2020-10-14 04:45:14,811 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-14 04:45:14,830 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-14 04:45:14,836 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-14 04:45:14,839 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-14 04:45:14,839 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-14 04:45:14,840 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_3.c
[2020-10-14 04:45:14,920 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42508676d/2e3a85b3d9a24f02aa5ca3c1abbf053e/FLAG93c05fbb7
[2020-10-14 04:45:15,414 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-14 04:45:15,415 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/zonotope_3.c
[2020-10-14 04:45:15,423 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42508676d/2e3a85b3d9a24f02aa5ca3c1abbf053e/FLAG93c05fbb7
[2020-10-14 04:45:15,759 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42508676d/2e3a85b3d9a24f02aa5ca3c1abbf053e
[2020-10-14 04:45:15,769 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-14 04:45:15,772 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-14 04:45:15,773 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-14 04:45:15,773 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-14 04:45:15,777 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-14 04:45:15,778 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:15" (1/1) ...
[2020-10-14 04:45:15,781 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd6f99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:15, skipping insertion in model container
[2020-10-14 04:45:15,782 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:45:15" (1/1) ...
[2020-10-14 04:45:15,790 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-14 04:45:15,810 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-14 04:45:16,001 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-14 04:45:16,008 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-14 04:45:16,040 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-14 04:45:16,056 INFO  L208         MainTranslator]: Completed translation
[2020-10-14 04:45:16,056 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16 WrapperNode
[2020-10-14 04:45:16,056 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-14 04:45:16,057 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-14 04:45:16,057 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-14 04:45:16,057 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-14 04:45:16,070 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,071 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,077 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,078 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,083 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,187 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,188 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
[2020-10-14 04:45:16,191 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-14 04:45:16,192 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-14 04:45:16,192 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-14 04:45:16,192 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-14 04:45:16,193 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-14 04:45:16,264 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-14 04:45:16,264 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-14 04:45:16,264 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-10-14 04:45:16,264 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-10-14 04:45:16,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure f
[2020-10-14 04:45:16,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure g
[2020-10-14 04:45:16,265 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-10-14 04:45:16,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-10-14 04:45:16,265 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float
[2020-10-14 04:45:16,265 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2020-10-14 04:45:16,266 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-10-14 04:45:16,266 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-10-14 04:45:16,266 INFO  L130     BoogieDeclarations]: Found specification of procedure f
[2020-10-14 04:45:16,266 INFO  L130     BoogieDeclarations]: Found specification of procedure g
[2020-10-14 04:45:16,266 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-10-14 04:45:16,266 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-14 04:45:16,267 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-14 04:45:16,549 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-14 04:45:16,550 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-10-14 04:45:16,554 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:16 BoogieIcfgContainer
[2020-10-14 04:45:16,555 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-14 04:45:16,556 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-14 04:45:16,556 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-14 04:45:16,560 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-14 04:45:16,560 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:45:15" (1/3) ...
[2020-10-14 04:45:16,561 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bde8752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:16, skipping insertion in model container
[2020-10-14 04:45:16,561 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:45:16" (2/3) ...
[2020-10-14 04:45:16,562 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bde8752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:45:16, skipping insertion in model container
[2020-10-14 04:45:16,562 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:45:16" (3/3) ...
[2020-10-14 04:45:16,564 INFO  L109   eAbstractionObserver]: Analyzing ICFG zonotope_3.c
[2020-10-14 04:45:16,575 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-14 04:45:16,583 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-14 04:45:16,601 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-14 04:45:16,638 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-10-14 04:45:16,639 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-10-14 04:45:16,639 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-14 04:45:16,639 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-14 04:45:16,639 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-14 04:45:16,640 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-10-14 04:45:16,640 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-14 04:45:16,640 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-14 04:45:16,663 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states.
[2020-10-14 04:45:16,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-10-14 04:45:16,671 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 04:45:16,672 INFO  L422         BasicCegarLoop]: trace histogram [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]
[2020-10-14 04:45:16,672 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 04:45:16,678 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 04:45:16,679 INFO  L82        PathProgramCache]: Analyzing trace with hash 2140746675, now seen corresponding path program 1 times
[2020-10-14 04:45:16,686 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 04:45:16,687 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129953764]
[2020-10-14 04:45:16,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 04:45:16,794 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:16,822 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:16,875 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:16,875 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 47
[2020-10-14 04:45:16,875 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:16,876 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 74
[2020-10-14 04:45:16,878 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:16,879 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:16,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:16,879 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 39
[2020-10-14 04:45:16,880 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:16,880 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-10-14 04:45:16,919 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 04:45:16,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:16,923 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:16,925 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:16,925 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-14 04:45:16,926 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:16,926 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-14 04:45:16,926 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:16,926 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:16,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:16,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:16,927 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:16,927 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:16,942 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-14 04:45:16,943 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:16,945 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:16,949 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:16,949 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:16,949 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:16,949 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-14 04:45:16,950 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:16,950 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:16,950 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:16,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:16,951 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:16,951 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:16,954 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-10-14 04:45:16,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:16,957 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:16,960 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:16,960 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:16,961 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:16,961 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-14 04:45:16,961 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:16,962 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:16,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:16,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:16,962 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:16,963 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:16,966 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-10-14 04:45:16,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:16,969 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:16,972 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:16,973 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:16,973 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:16,974 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-10-14 04:45:16,974 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:16,974 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:16,974 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:16,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:16,975 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:16,975 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:16,979 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2020-10-14 04:45:16,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:16,986 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:16,993 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:16,994 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:16,994 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:16,994 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-10-14 04:45:16,995 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:16,995 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:16,995 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:16,996 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:16,996 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:16,996 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-10-14 04:45:17,013 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129953764]
[2020-10-14 04:45:17,015 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-14 04:45:17,016 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-14 04:45:17,017 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094584358]
[2020-10-14 04:45:17,021 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-10-14 04:45:17,022 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 04:45:17,033 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-10-14 04:45:17,034 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-10-14 04:45:17,036 INFO  L87              Difference]: Start difference. First operand 47 states. Second operand 2 states.
[2020-10-14 04:45:17,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 04:45:17,069 INFO  L93              Difference]: Finished difference Result 81 states and 97 transitions.
[2020-10-14 04:45:17,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-10-14 04:45:17,071 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 31
[2020-10-14 04:45:17,072 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 04:45:17,082 INFO  L225             Difference]: With dead ends: 81
[2020-10-14 04:45:17,083 INFO  L226             Difference]: Without dead ends: 40
[2020-10-14 04:45:17,087 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-10-14 04:45:17,109 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2020-10-14 04:45:17,139 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2020-10-14 04:45:17,141 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 40 states.
[2020-10-14 04:45:17,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions.
[2020-10-14 04:45:17,145 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 31
[2020-10-14 04:45:17,146 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 04:45:17,147 INFO  L479      AbstractCegarLoop]: Abstraction has 40 states and 46 transitions.
[2020-10-14 04:45:17,147 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-10-14 04:45:17,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions.
[2020-10-14 04:45:17,149 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2020-10-14 04:45:17,150 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 04:45:17,150 INFO  L422         BasicCegarLoop]: trace histogram [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]
[2020-10-14 04:45:17,151 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-14 04:45:17,151 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 04:45:17,151 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 04:45:17,151 INFO  L82        PathProgramCache]: Analyzing trace with hash 1711309410, now seen corresponding path program 1 times
[2020-10-14 04:45:17,152 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 04:45:17,152 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1351034027]
[2020-10-14 04:45:17,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 04:45:17,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,181 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,276 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,277 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 47
[2020-10-14 04:45:17,277 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,277 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 105
[2020-10-14 04:45:17,278 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,278 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-10-14 04:45:17,278 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 38
[2020-10-14 04:45:17,279 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 2
[2020-10-14 04:45:17,279 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,326 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 04:45:17,329 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,334 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,336 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,336 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-14 04:45:17,337 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,337 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-14 04:45:17,339 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,340 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,340 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,341 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,343 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-14 04:45:17,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,352 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,358 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,360 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,361 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,361 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-14 04:45:17,361 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,362 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,362 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,363 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,368 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-10-14 04:45:17,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,378 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,383 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,383 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,384 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,387 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-10-14 04:45:17,387 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,388 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,388 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,389 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,389 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,391 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-10-14 04:45:17,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,395 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,398 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,399 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,399 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,399 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-10-14 04:45:17,399 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,400 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,400 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,400 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,407 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2020-10-14 04:45:17,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,416 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,422 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,422 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,422 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,423 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-10-14 04:45:17,423 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,423 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,423 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,423 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,424 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,424 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,439 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2020-10-14 04:45:17,440 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1351034027]
[2020-10-14 04:45:17,440 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-14 04:45:17,440 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-14 04:45:17,440 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280673564]
[2020-10-14 04:45:17,444 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-14 04:45:17,445 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-10-14 04:45:17,445 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-14 04:45:17,446 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-14 04:45:17,446 INFO  L87              Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 3 states.
[2020-10-14 04:45:17,475 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-14 04:45:17,476 INFO  L93              Difference]: Finished difference Result 57 states and 68 transitions.
[2020-10-14 04:45:17,476 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-14 04:45:17,477 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 31
[2020-10-14 04:45:17,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-14 04:45:17,479 INFO  L225             Difference]: With dead ends: 57
[2020-10-14 04:45:17,479 INFO  L226             Difference]: Without dead ends: 51
[2020-10-14 04:45:17,480 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-14 04:45:17,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2020-10-14 04:45:17,491 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41.
[2020-10-14 04:45:17,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 41 states.
[2020-10-14 04:45:17,493 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions.
[2020-10-14 04:45:17,494 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 31
[2020-10-14 04:45:17,494 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-14 04:45:17,494 INFO  L479      AbstractCegarLoop]: Abstraction has 41 states and 47 transitions.
[2020-10-14 04:45:17,494 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-14 04:45:17,495 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions.
[2020-10-14 04:45:17,496 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2020-10-14 04:45:17,497 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-14 04:45:17,497 INFO  L422         BasicCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-14 04:45:17,497 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-14 04:45:17,498 INFO  L427      AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-14 04:45:17,498 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-14 04:45:17,498 INFO  L82        PathProgramCache]: Analyzing trace with hash -612347458, now seen corresponding path program 1 times
[2020-10-14 04:45:17,499 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-14 04:45:17,499 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119699346]
[2020-10-14 04:45:17,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-14 04:45:17,517 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,531 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,610 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,611 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 84
[2020-10-14 04:45:17,611 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,611 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 91
[2020-10-14 04:45:17,612 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,612 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-10-14 04:45:17,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 38
[2020-10-14 04:45:17,612 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 39
[2020-10-14 04:45:17,613 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,645 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-10-14 04:45:17,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,648 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,649 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,649 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 7
[2020-10-14 04:45:17,649 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,650 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 04:45:17,650 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,650 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,651 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,651 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,653 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2020-10-14 04:45:17,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,656 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,658 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,658 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,658 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,659 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 04:45:17,659 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,659 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,659 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,660 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,660 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,662 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2020-10-14 04:45:17,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,665 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,666 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,667 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,667 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,667 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 04:45:17,667 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,668 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,668 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,669 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,671 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2020-10-14 04:45:17,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,673 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,675 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,675 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,675 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,676 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 04:45:17,676 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,676 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,676 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,677 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,677 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,679 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2020-10-14 04:45:17,681 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-14 04:45:17,697 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-10-14 04:45:17,699 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-10-14 04:45:17,699 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-10-14 04:45:17,699 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-10-14 04:45:17,699 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 2
[2020-10-14 04:45:17,700 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-10-14 04:45:17,700 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.4
[2020-10-14 04:45:17,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-10-14 04:45:17,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 1
[2020-10-14 04:45:17,700 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-10-14 04:45:17,701 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-10-14 04:45:17,703 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2020-10-14 04:45:17,707 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-14 04:45:17,708 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.<init>(TraceCheck.java:235)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.<init>(InterpolatingTraceCheck.java:90)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:89)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:378)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:228)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.<init>(InterpolatingTraceCheckCraig.java:97)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:106)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:75)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:508)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:436)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:334)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:127)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms
	at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:557)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282)
	at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertLocalVarAssignemntPendingContext(AnnotateAndAssertCodeBlocks.java:169)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:120)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:295)
	at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.<init>(TraceCheck.java:206)
	... 30 more
[2020-10-14 04:45:17,714 INFO  L168              Benchmark]: Toolchain (without parser) took 1942.20 ms. Allocated memory was 146.8 MB in the beginning and 233.8 MB in the end (delta: 87.0 MB). Free memory was 102.9 MB in the beginning and 202.3 MB in the end (delta: -99.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-14 04:45:17,715 INFO  L168              Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-14 04:45:17,716 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 283.98 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2020-10-14 04:45:17,717 INFO  L168              Benchmark]: Boogie Preprocessor took 134.09 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.7 MB in the beginning and 182.3 MB in the end (delta: -89.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB.
[2020-10-14 04:45:17,718 INFO  L168              Benchmark]: RCFGBuilder took 363.25 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 166.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB.
[2020-10-14 04:45:17,719 INFO  L168              Benchmark]: TraceAbstraction took 1155.17 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 166.1 MB in the beginning and 202.3 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-14 04:45:17,724 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.58 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 283.98 ms. Allocated memory is still 146.8 MB. Free memory was 102.7 MB in the beginning and 92.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 134.09 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 92.7 MB in the beginning and 182.3 MB in the end (delta: -89.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 363.25 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 166.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1155.17 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 166.1 MB in the beginning and 202.3 MB in the end (delta: -36.2 MB). There was no memory consumed. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms
    de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.<init>(TraceCheck.java:235)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...