/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/even.c


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


This is Ultimate 0.1.25-c90d42b
[2020-09-25 06:54:35,980 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-09-25 06:54:35,985 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 06:54:36,030 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 06:54:36,030 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 06:54:36,038 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 06:54:36,041 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-09-25 06:54:36,047 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 06:54:36,050 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-09-25 06:54:36,053 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 06:54:36,056 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 06:54:36,058 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 06:54:36,060 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 06:54:36,062 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 06:54:36,063 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 06:54:36,065 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 06:54:36,075 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 06:54:36,077 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 06:54:36,079 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 06:54:36,080 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 06:54:36,081 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 06:54:36,098 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 06:54:36,098 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 06:54:36,099 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 06:54:36,100 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 06:54:36,100 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 06:54:36,105 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 06:54:36,105 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-09-25 06:54:36,109 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 06:54:36,110 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 06:54:36,111 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 06:54:36,111 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-09-25 06:54:36,112 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 06:54:36,112 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 06:54:36,114 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 06:54:36,115 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 06:54:36,116 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 06:54:36,164 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-09-25 06:54:36,164 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 06:54:36,166 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 06:54:36,166 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-09-25 06:54:36,166 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-09-25 06:54:36,167 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 06:54:36,167 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-09-25 06:54:36,167 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-09-25 06:54:36,167 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-09-25 06:54:36,168 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-09-25 06:54:36,169 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 06:54:36,169 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 06:54:36,169 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 06:54:36,170 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-09-25 06:54:36,170 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-09-25 06:54:36,170 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-09-25 06:54:36,170 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-09-25 06:54:36,171 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 06:54:36,171 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-09-25 06:54:36,171 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-09-25 06:54:36,171 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-09-25 06:54:36,172 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:54:36,172 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 06:54:36,172 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 06:54:36,172 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 06:54:36,172 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-09-25 06:54:36,173 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 06:54:36,173 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 06:54:36,173 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-09-25 06:54:36,173 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;
[2020-09-25 06:54:36,705 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 06:54:36,726 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 06:54:36,730 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 06:54:36,732 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-09-25 06:54:36,733 INFO  L275        PluginConnector]: CDTParser initialized
[2020-09-25 06:54:36,734 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/even.c
[2020-09-25 06:54:36,819 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/271b04c75/2abab6c1b04f430d8d4c29240474fb39/FLAGe3e95a5f4
[2020-09-25 06:54:37,392 INFO  L306              CDTParser]: Found 1 translation units.
[2020-09-25 06:54:37,393 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invariants/even.c
[2020-09-25 06:54:37,401 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/271b04c75/2abab6c1b04f430d8d4c29240474fb39/FLAGe3e95a5f4
[2020-09-25 06:54:37,730 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/271b04c75/2abab6c1b04f430d8d4c29240474fb39
[2020-09-25 06:54:37,745 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 06:54:37,756 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 06:54:37,760 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 06:54:37,760 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 06:54:37,764 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 06:54:37,765 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:54:37" (1/1) ...
[2020-09-25 06:54:37,771 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1aada5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:37, skipping insertion in model container
[2020-09-25 06:54:37,771 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:54:37" (1/1) ...
[2020-09-25 06:54:37,782 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-09-25 06:54:37,803 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-09-25 06:54:38,003 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:54:38,008 INFO  L203         MainTranslator]: Completed pre-run
[2020-09-25 06:54:38,028 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-09-25 06:54:38,046 INFO  L208         MainTranslator]: Completed translation
[2020-09-25 06:54:38,046 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38 WrapperNode
[2020-09-25 06:54:38,047 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 06:54:38,047 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 06:54:38,048 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 06:54:38,048 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 06:54:38,065 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,066 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,161 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,161 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,166 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,172 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,173 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
[2020-09-25 06:54:38,174 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 06:54:38,175 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 06:54:38,175 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 06:54:38,175 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-09-25 06:54:38,176 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 06:54:38,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 06:54:38,243 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 06:54:38,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 06:54:38,244 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 06:54:38,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 06:54:38,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 06:54:38,244 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 06:54:38,246 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-09-25 06:54:38,246 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 06:54:38,247 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 06:54:38,439 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 06:54:38,439 INFO  L295             CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 06:54:38,443 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:54:38 BoogieIcfgContainer
[2020-09-25 06:54:38,443 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 06:54:38,444 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 06:54:38,444 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 06:54:38,448 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-09-25 06:54:38,448 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:54:37" (1/3) ...
[2020-09-25 06:54:38,449 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ee88c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:54:38, skipping insertion in model container
[2020-09-25 06:54:38,449 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:54:38" (2/3) ...
[2020-09-25 06:54:38,450 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ee88c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:54:38, skipping insertion in model container
[2020-09-25 06:54:38,450 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:54:38" (3/3) ...
[2020-09-25 06:54:38,452 INFO  L109   eAbstractionObserver]: Analyzing ICFG even.c
[2020-09-25 06:54:38,464 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 06:54:38,473 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 06:54:38,491 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 06:54:38,516 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-09-25 06:54:38,516 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-09-25 06:54:38,516 INFO  L377      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 06:54:38,517 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 06:54:38,517 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 06:54:38,517 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-09-25 06:54:38,517 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 06:54:38,517 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 06:54:38,537 INFO  L276                IsEmpty]: Start isEmpty. Operand 22 states.
[2020-09-25 06:54:38,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-09-25 06:54:38,544 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:54:38,545 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:54:38,545 INFO  L427      AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:54:38,551 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:54:38,552 INFO  L82        PathProgramCache]: Analyzing trace with hash 1137787585, now seen corresponding path program 1 times
[2020-09-25 06:54:38,561 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:54:38,561 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [715355390]
[2020-09-25 06:54:38,561 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:54:38,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:54:38,662 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:54:38,724 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:54:38,782 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:54:38,782 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 19
[2020-09-25 06:54:38,782 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 06:54:38,783 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 129
[2020-09-25 06:54:38,786 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:54:38,787 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:54:38,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:54:38,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 12
[2020-09-25 06:54:38,787 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:54:38,788 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 06:54:38,812 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:54:38,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:54:38,818 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:54:38,820 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:54:38,820 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:54:38,821 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:54:38,821 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 06:54:38,821 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:54:38,821 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:54:38,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:54:38,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:54:38,822 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:54:38,822 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:54:38,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:54:38,829 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [715355390]
[2020-09-25 06:54:38,831 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:54:38,832 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-09-25 06:54:38,833 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977501291]
[2020-09-25 06:54:38,839 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-09-25 06:54:38,839 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:54:38,857 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-09-25 06:54:38,858 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-25 06:54:38,861 INFO  L87              Difference]: Start difference. First operand 22 states. Second operand 2 states.
[2020-09-25 06:54:38,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:54:38,889 INFO  L93              Difference]: Finished difference Result 34 states and 37 transitions.
[2020-09-25 06:54:38,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2020-09-25 06:54:38,891 INFO  L78                 Accepts]: Start accepts. Automaton has 2 states. Word has length 10
[2020-09-25 06:54:38,892 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:54:38,902 INFO  L225             Difference]: With dead ends: 34
[2020-09-25 06:54:38,902 INFO  L226             Difference]: Without dead ends: 15
[2020-09-25 06:54:38,906 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-25 06:54:38,923 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2020-09-25 06:54:38,941 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2020-09-25 06:54:38,942 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2020-09-25 06:54:38,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2020-09-25 06:54:38,945 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10
[2020-09-25 06:54:38,945 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:54:38,945 INFO  L479      AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2020-09-25 06:54:38,945 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-09-25 06:54:38,946 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2020-09-25 06:54:38,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-09-25 06:54:38,946 INFO  L414         BasicCegarLoop]: Found error trace
[2020-09-25 06:54:38,947 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 06:54:38,947 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 06:54:38,947 INFO  L427      AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 06:54:38,948 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 06:54:38,948 INFO  L82        PathProgramCache]: Analyzing trace with hash 1424281528, now seen corresponding path program 1 times
[2020-09-25 06:54:38,948 INFO  L163   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 06:54:38,949 INFO  L354   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1970583306]
[2020-09-25 06:54:38,949 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 06:54:38,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:54:38,983 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:54:39,035 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:54:39,035 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 21
[2020-09-25 06:54:39,036 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:54:39,036 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 67
[2020-09-25 06:54:39,036 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:54:39,037 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:54:39,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 06:54:39,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 11
[2020-09-25 06:54:39,037 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 9
[2020-09-25 06:54:39,038 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:54:39,292 WARN  L193               SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 12
[2020-09-25 06:54:39,317 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 06:54:39,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 06:54:39,321 FATAL L256   erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 06:54:39,324 FATAL L256   erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 06:54:39,324 FATAL L256   erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 06:54:39,324 FATAL L256   erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 06:54:39,325 FATAL L256   erpolLogProxyWrapper]: Time needed for enumeration: 3
[2020-09-25 06:54:39,325 FATAL L256   erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 06:54:39,325 FATAL L256   erpolLogProxyWrapper]: Tolerance: 0.6
[2020-09-25 06:54:39,325 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 06:54:39,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 06:54:39,326 FATAL L256   erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 06:54:39,327 FATAL L256   erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 06:54:39,331 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 06:54:39,332 INFO  L354   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1970583306]
[2020-09-25 06:54:39,333 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 06:54:39,333 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 06:54:39,333 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743940489]
[2020-09-25 06:54:39,335 INFO  L459      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 06:54:39,335 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 06:54:39,336 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 06:54:39,336 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 06:54:39,337 INFO  L87              Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states.
[2020-09-25 06:54:39,373 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 06:54:39,374 INFO  L93              Difference]: Finished difference Result 15 states and 15 transitions.
[2020-09-25 06:54:39,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-09-25 06:54:39,374 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 12
[2020-09-25 06:54:39,375 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 06:54:39,375 INFO  L225             Difference]: With dead ends: 15
[2020-09-25 06:54:39,375 INFO  L226             Difference]: Without dead ends: 0
[2020-09-25 06:54:39,376 INFO  L675         BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 06:54:39,377 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 06:54:39,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 06:54:39,377 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 06:54:39,378 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 06:54:39,378 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2020-09-25 06:54:39,378 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-09-25 06:54:39,378 INFO  L479      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 06:54:39,378 INFO  L480      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 06:54:39,379 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 06:54:39,379 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 06:54:39,379 WARN  L516      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 06:54:39,382 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 06:54:39,440 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.initFINAL(line -1)  the Hoare annotation is:  true
[2020-09-25 06:54:39,440 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.initEXIT(line -1)  no Hoare annotation was computed.
[2020-09-25 06:54:39,440 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startEXIT(line -1)  no Hoare annotation was computed.
[2020-09-25 06:54:39,440 INFO  L271        CegarLoopResult]: At program point  L-1(line -1)  the Hoare annotation is:  true
[2020-09-25 06:54:39,441 INFO  L271        CegarLoopResult]: At program point  ULTIMATE.startENTRY(line -1)  the Hoare annotation is:  true
[2020-09-25 06:54:39,441 INFO  L268        CegarLoopResult]: For program point  ULTIMATE.startFINAL(line -1)  no Hoare annotation was computed.
[2020-09-25 06:54:39,441 INFO  L271        CegarLoopResult]: At program point  mainENTRY(lines 9 16)  the Hoare annotation is:  true
[2020-09-25 06:54:39,441 INFO  L268        CegarLoopResult]: For program point  mainEXIT(lines 9 16)  no Hoare annotation was computed.
[2020-09-25 06:54:39,441 INFO  L268        CegarLoopResult]: For program point  L14(line 14)  no Hoare annotation was computed.
[2020-09-25 06:54:39,441 INFO  L268        CegarLoopResult]: For program point  mainFINAL(lines 9 16)  no Hoare annotation was computed.
[2020-09-25 06:54:39,441 INFO  L268        CegarLoopResult]: For program point  L12(line 12)  no Hoare annotation was computed.
[2020-09-25 06:54:39,442 INFO  L268        CegarLoopResult]: For program point  L11-1(lines 11 13)  no Hoare annotation was computed.
[2020-09-25 06:54:39,442 INFO  L268        CegarLoopResult]: For program point  L11-2(line 11)  no Hoare annotation was computed.
[2020-09-25 06:54:39,442 INFO  L268        CegarLoopResult]: For program point  L11-4(line 11)  no Hoare annotation was computed.
[2020-09-25 06:54:39,442 INFO  L264        CegarLoopResult]: At program point  L11-5(lines 11 13)  the Hoare annotation is:  (= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) main_~x~0) 4294967296)))))
[2020-09-25 06:54:39,442 INFO  L264        CegarLoopResult]: At program point  L11-6(lines 11 13)  the Hoare annotation is:  (= main_~x~0 (let ((.cse0 (div main_~x~0 2))) (+ (* 2 .cse0) (* 4294967296 (div (+ (* .cse0 (- 2)) main_~x~0) 4294967296)))))
[2020-09-25 06:54:39,443 INFO  L271        CegarLoopResult]: At program point  __VERIFIER_assertENTRY(lines 3 8)  the Hoare annotation is:  true
[2020-09-25 06:54:39,443 INFO  L268        CegarLoopResult]: For program point  __VERIFIER_assertEXIT(lines 3 8)  no Hoare annotation was computed.
[2020-09-25 06:54:39,443 INFO  L268        CegarLoopResult]: For program point  L5(line 5)  no Hoare annotation was computed.
[2020-09-25 06:54:39,443 INFO  L268        CegarLoopResult]: For program point  L4(lines 4 6)  no Hoare annotation was computed.
[2020-09-25 06:54:39,443 INFO  L268        CegarLoopResult]: For program point  __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5)  no Hoare annotation was computed.
[2020-09-25 06:54:39,443 INFO  L268        CegarLoopResult]: For program point  L4-2(lines 3 8)  no Hoare annotation was computed.
[2020-09-25 06:54:39,472 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:54:39 BoogieIcfgContainer
[2020-09-25 06:54:39,472 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 06:54:39,478 INFO  L168              Benchmark]: Toolchain (without parser) took 1727.50 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 102.2 MB in the beginning and 116.8 MB in the end (delta: -14.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 7.1 GB.
[2020-09-25 06:54:39,480 INFO  L168              Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.1 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 06:54:39,481 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 287.33 ms. Allocated memory is still 143.1 MB. Free memory was 101.1 MB in the beginning and 91.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-09-25 06:54:39,482 INFO  L168              Benchmark]: Boogie Preprocessor took 127.04 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 91.9 MB in the beginning and 179.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
[2020-09-25 06:54:39,484 INFO  L168              Benchmark]: RCFGBuilder took 268.26 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 168.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB.
[2020-09-25 06:54:39,486 INFO  L168              Benchmark]: TraceAbstraction took 1028.26 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 116.8 MB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB.
[2020-09-25 06:54:39,497 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.19 ms. Allocated memory is still 143.1 MB. Free memory was 120.1 MB in the beginning and 119.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 287.33 ms. Allocated memory is still 143.1 MB. Free memory was 101.1 MB in the beginning and 91.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 127.04 ms. Allocated memory was 143.1 MB in the beginning and 201.3 MB in the end (delta: 58.2 MB). Free memory was 91.9 MB in the beginning and 179.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 268.26 ms. Allocated memory is still 201.3 MB. Free memory was 179.8 MB in the beginning and 168.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 1028.26 ms. Allocated memory is still 201.3 MB. Free memory was 167.7 MB in the beginning and 116.8 MB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - InvariantResult [Line: 11]: Loop Invariant
    Derived loop invariant: x == 2 * (x / 2) + 4294967296 * ((x / 2 * -2 + x) / 4294967296)
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 3 SDslu, 26 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 43 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...