/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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-acceleration/simple_2-1.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 11:24:12,570 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 11:24:12,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 11:24:12,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 11:24:12,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 11:24:12,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 11:24:12,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 11:24:12,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 11:24:12,609 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 11:24:12,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 11:24:12,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 11:24:12,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 11:24:12,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 11:24:12,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 11:24:12,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 11:24:12,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 11:24:12,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 11:24:12,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 11:24:12,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 11:24:12,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 11:24:12,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 11:24:12,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 11:24:12,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 11:24:12,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 11:24:12,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 11:24:12,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 11:24:12,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 11:24:12,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 11:24:12,633 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 11:24:12,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 11:24:12,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 11:24:12,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 11:24:12,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 11:24:12,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 11:24:12,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 11:24:12,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 11:24:12,639 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 11:24:12,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 11:24:12,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 11:24:12,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 11:24:12,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 11:24:12,643 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 11:24:12,670 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 11:24:12,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 11:24:12,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 11:24:12,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 11:24:12,673 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 11:24:12,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 11:24:12,673 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 11:24:12,674 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 11:24:12,674 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 11:24:12,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 11:24:12,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 11:24:12,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 11:24:12,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 11:24:12,675 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 11:24:12,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 11:24:12,676 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 11:24:12,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 11:24:12,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 11:24:12,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 11:24:12,677 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 11:24:12,679 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 11:24:12,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:24:12,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 11:24:12,680 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 11:24:12,680 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 11:24:12,680 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 11:24:12,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 11:24:12,680 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 11:24:12,681 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 11:24:12,681 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 11:24:13,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 11:24:13,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 11:24:13,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 11:24:13,261 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 11:24:13,261 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 11:24:13,262 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_2-1.c
[2020-09-25 11:24:13,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91919bd21/7bacadc099e145449a5cdb4f8667407e/FLAGbf1936fc3
[2020-09-25 11:24:13,967 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 11:24:13,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/simple_2-1.c
[2020-09-25 11:24:13,977 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91919bd21/7bacadc099e145449a5cdb4f8667407e/FLAGbf1936fc3
[2020-09-25 11:24:14,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/91919bd21/7bacadc099e145449a5cdb4f8667407e
[2020-09-25 11:24:14,314 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 11:24:14,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 11:24:14,326 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 11:24:14,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 11:24:14,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 11:24:14,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478e5e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14, skipping insertion in model container
[2020-09-25 11:24:14,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 11:24:14,377 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 11:24:14,622 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:24:14,627 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 11:24:14,642 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:24:14,658 INFO L208 MainTranslator]: Completed translation
[2020-09-25 11:24:14,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14 WrapperNode
[2020-09-25 11:24:14,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 11:24:14,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 11:24:14,660 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 11:24:14,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 11:24:14,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (1/1) ...
[2020-09-25 11:24:14,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 11:24:14,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 11:24:14,773 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 11:24:14,773 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 11:24:14,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (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 11:24:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 11:24:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 11:24:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 11:24:14,854 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 11:24:14,854 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 11:24:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint
[2020-09-25 11:24:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 11:24:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 11:24:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 11:24:14,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 11:24:15,050 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 11:24:15,051 INFO L295 CfgBuilder]: Removed 1 assume(true) statements.
[2020-09-25 11:24:15,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:24:15 BoogieIcfgContainer
[2020-09-25 11:24:15,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 11:24:15,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 11:24:15,056 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 11:24:15,060 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 11:24:15,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:24:14" (1/3) ...
[2020-09-25 11:24:15,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a23298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:24:15, skipping insertion in model container
[2020-09-25 11:24:15,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:24:14" (2/3) ...
[2020-09-25 11:24:15,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a23298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:24:15, skipping insertion in model container
[2020-09-25 11:24:15,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:24:15" (3/3) ...
[2020-09-25 11:24:15,065 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_2-1.c
[2020-09-25 11:24:15,077 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 11:24:15,087 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 11:24:15,108 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 11:24:15,136 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 11:24:15,136 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 11:24:15,137 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 11:24:15,137 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 11:24:15,137 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 11:24:15,137 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 11:24:15,137 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 11:24:15,138 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 11:24:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states.
[2020-09-25 11:24:15,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-09-25 11:24:15,164 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:24:15,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:24:15,166 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:24:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:24:15,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1940560411, now seen corresponding path program 1 times
[2020-09-25 11:24:15,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:24:15,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536241257]
[2020-09-25 11:24:15,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:24:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:15,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:15,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:15,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20
[2020-09-25 11:24:15,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:15,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33
[2020-09-25 11:24:15,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:15,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:15,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13
[2020-09-25 11:24:15,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:15,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3
[2020-09-25 11:24:15,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:24:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:15,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:15,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:15,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 11:24:15,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:15,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4
[2020-09-25 11:24:15,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:15,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:15,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:24:15,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:15,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:24:15,356 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 11:24:15,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536241257]
[2020-09-25 11:24:15,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:24:15,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-09-25 11:24:15,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957040470]
[2020-09-25 11:24:15,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-09-25 11:24:15,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:24:15,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-09-25 11:24:15,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-09-25 11:24:15,385 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states.
[2020-09-25 11:24:15,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:24:15,410 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions.
[2020-09-25 11:24:15,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-09-25 11:24:15,411 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11
[2020-09-25 11:24:15,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:24:15,422 INFO L225 Difference]: With dead ends: 32
[2020-09-25 11:24:15,422 INFO L226 Difference]: Without dead ends: 15
[2020-09-25 11:24:15,426 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 11:24:15,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2020-09-25 11:24:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2020-09-25 11:24:15,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2020-09-25 11:24:15,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions.
[2020-09-25 11:24:15,474 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11
[2020-09-25 11:24:15,474 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:24:15,474 INFO L479 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions.
[2020-09-25 11:24:15,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-09-25 11:24:15,474 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions.
[2020-09-25 11:24:15,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-09-25 11:24:15,475 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:24:15,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 11:24:15,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 11:24:15,476 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:24:15,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:24:15,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1947025058, now seen corresponding path program 1 times
[2020-09-25 11:24:15,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:24:15,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [577163933]
[2020-09-25 11:24:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:24:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:15,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:15,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:15,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20
[2020-09-25 11:24:15,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:15,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115
[2020-09-25 11:24:15,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:15,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:15,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4
[2020-09-25 11:24:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13
[2020-09-25 11:24:15,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 11:24:15,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:24:15,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:24:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:24:15,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:24:15,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:24:15,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8
[2020-09-25 11:24:15,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:24:15,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6
[2020-09-25 11:24:15,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:24:15,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:24:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:24:15,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:24:15,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:24:15,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 11:24:15,748 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 11:24:15,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [577163933]
[2020-09-25 11:24:15,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:24:15,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 11:24:15,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459174054]
[2020-09-25 11:24:15,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 11:24:15,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:24:15,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 11:24:15,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 11:24:15,755 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 5 states.
[2020-09-25 11:24:15,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:24:15,832 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions.
[2020-09-25 11:24:15,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-09-25 11:24:15,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2020-09-25 11:24:15,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:24:15,834 INFO L225 Difference]: With dead ends: 15
[2020-09-25 11:24:15,834 INFO L226 Difference]: Without dead ends: 0
[2020-09-25 11:24:15,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2020-09-25 11:24:15,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-09-25 11:24:15,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-09-25 11:24:15,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-09-25 11:24:15,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-09-25 11:24:15,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11
[2020-09-25 11:24:15,837 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:24:15,837 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-09-25 11:24:15,838 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 11:24:15,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-09-25 11:24:15,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-09-25 11:24:15,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 11:24:15,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2020-09-25 11:24:15,877 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2020-09-25 11:24:15,878 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:15,878 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:15,878 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true
[2020-09-25 11:24:15,878 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2020-09-25 11:24:15,879 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2020-09-25 11:24:15,879 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 11 19) the Hoare annotation is: true
[2020-09-25 11:24:15,879 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 19) no Hoare annotation was computed.
[2020-09-25 11:24:15,879 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed.
[2020-09-25 11:24:15,879 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed.
[2020-09-25 11:24:15,880 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed.
[2020-09-25 11:24:15,880 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 19) no Hoare annotation was computed.
[2020-09-25 11:24:15,880 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed.
[2020-09-25 11:24:15,880 INFO L271 CegarLoopResult]: At program point L14-2(lines 14 16) the Hoare annotation is: true
[2020-09-25 11:24:15,881 INFO L264 CegarLoopResult]: At program point L14-3(lines 14 16) the Hoare annotation is: (< (+ (* 4294967296 (div main_~x~0 4294967296)) 268435454) main_~x~0)
[2020-09-25 11:24:15,881 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true
[2020-09-25 11:24:15,881 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed.
[2020-09-25 11:24:15,881 INFO L268 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed.
[2020-09-25 11:24:15,882 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed.
[2020-09-25 11:24:15,882 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed.
[2020-09-25 11:24:15,882 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 9) no Hoare annotation was computed.
[2020-09-25 11:24:15,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:24:15 BoogieIcfgContainer
[2020-09-25 11:24:15,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 11:24:15,899 INFO L168 Benchmark]: Toolchain (without parser) took 1580.35 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 103.2 MB in the beginning and 128.8 MB in the end (delta: -25.6 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:15,900 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-09-25 11:24:15,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.19 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 93.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:15,903 INFO L168 Benchmark]: Boogie Preprocessor took 112.97 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 181.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:15,904 INFO L168 Benchmark]: RCFGBuilder took 282.04 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 169.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:15,905 INFO L168 Benchmark]: TraceAbstraction took 839.32 ms. Allocated memory is still 201.9 MB. Free memory was 168.7 MB in the beginning and 128.8 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB.
[2020-09-25 11:24:15,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 333.19 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 93.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 112.97 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 93.4 MB in the beginning and 181.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 282.04 ms. Allocated memory is still 201.9 MB. Free memory was 181.0 MB in the beginning and 169.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 839.32 ms. Allocated memory is still 201.9 MB. Free memory was 168.7 MB in the beginning and 128.8 MB in the end (delta: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 6]: 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: 14]: Loop Invariant
Derived loop invariant: 1
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 1 SDslu, 30 SDs, 0 SdLazy, 6 SolverSat, 0 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 15 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 340 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...