/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/s1liff.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-24 17:19:55,464 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-24 17:19:55,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-24 17:19:55,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-24 17:19:55,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-24 17:19:55,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-24 17:19:55,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-24 17:19:55,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-24 17:19:55,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-24 17:19:55,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-24 17:19:55,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-24 17:19:55,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-24 17:19:55,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-24 17:19:55,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-24 17:19:55,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-24 17:19:55,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-24 17:19:55,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-24 17:19:55,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-24 17:19:55,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-24 17:19:55,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-24 17:19:55,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-24 17:19:55,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-24 17:19:55,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-24 17:19:55,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-24 17:19:55,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-24 17:19:55,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-24 17:19:55,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-24 17:19:55,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-24 17:19:55,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-24 17:19:55,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-24 17:19:55,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-24 17:19:55,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-24 17:19:55,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-24 17:19:55,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-24 17:19:55,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-24 17:19:55,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-24 17:19:55,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-24 17:19:55,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-24 17:19:55,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-24 17:19:55,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-24 17:19:55,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-24 17:19:55,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-24 17:19:55,602 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-24 17:19:55,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-24 17:19:55,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-24 17:19:55,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-24 17:19:55,608 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-24 17:19:55,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-24 17:19:55,608 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-24 17:19:55,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-24 17:19:55,609 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-24 17:19:55,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-24 17:19:55,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-24 17:19:55,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-24 17:19:55,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-24 17:19:55,610 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-24 17:19:55,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-24 17:19:55,610 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-24 17:19:55,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-24 17:19:55,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-24 17:19:55,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-24 17:19:55,612 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-24 17:19:55,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-24 17:19:55,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:19:55,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-24 17:19:55,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-24 17:19:55,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-24 17:19:55,613 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-24 17:19:55,613 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-24 17:19:55,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-24 17:19:55,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-24 17:19:55,614 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;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;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;log-additional-information=true;
[2020-09-24 17:19:56,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-24 17:19:56,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-24 17:19:56,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-24 17:19:56,107 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-24 17:19:56,107 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-24 17:19:56,108 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s1liff.c
[2020-09-24 17:19:56,198 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fffc70f8/a08079a32e23469d8110a8419032cdc8/FLAG0cca24d9e
[2020-09-24 17:19:56,765 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-24 17:19:56,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s1liff.c
[2020-09-24 17:19:56,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fffc70f8/a08079a32e23469d8110a8419032cdc8/FLAG0cca24d9e
[2020-09-24 17:19:57,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9fffc70f8/a08079a32e23469d8110a8419032cdc8
[2020-09-24 17:19:57,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-24 17:19:57,115 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-24 17:19:57,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-24 17:19:57,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-24 17:19:57,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-24 17:19:57,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3330734f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57, skipping insertion in model container
[2020-09-24 17:19:57,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-24 17:19:57,165 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-24 17:19:57,390 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:19:57,406 INFO L203 MainTranslator]: Completed pre-run
[2020-09-24 17:19:57,432 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-24 17:19:57,453 INFO L208 MainTranslator]: Completed translation
[2020-09-24 17:19:57,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57 WrapperNode
[2020-09-24 17:19:57,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-24 17:19:57,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-24 17:19:57,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-24 17:19:57,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-24 17:19:57,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,576 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
[2020-09-24 17:19:57,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-24 17:19:57,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-24 17:19:57,587 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-24 17:19:57,587 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-24 17:19:57,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-24 17:19:57,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-24 17:19:57,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-24 17:19:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-24 17:19:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-24 17:19:57,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-24 17:19:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-24 17:19:57,673 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-24 17:19:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-24 17:19:57,674 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-24 17:19:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-24 17:19:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-24 17:19:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-24 17:19:57,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-24 17:19:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-24 17:19:57,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-24 17:19:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-24 17:19:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-24 17:19:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-24 17:19:57,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-24 17:19:58,043 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-24 17:19:58,044 INFO L295 CfgBuilder]: Removed 3 assume(true) statements.
[2020-09-24 17:19:58,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:58 BoogieIcfgContainer
[2020-09-24 17:19:58,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-24 17:19:58,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-24 17:19:58,051 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-24 17:19:58,055 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-24 17:19:58,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:19:57" (1/3) ...
[2020-09-24 17:19:58,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292a95e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:58, skipping insertion in model container
[2020-09-24 17:19:58,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:19:57" (2/3) ...
[2020-09-24 17:19:58,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@292a95e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:19:58, skipping insertion in model container
[2020-09-24 17:19:58,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:19:58" (3/3) ...
[2020-09-24 17:19:58,060 INFO L109 eAbstractionObserver]: Analyzing ICFG s1liff.c
[2020-09-24 17:19:58,071 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-24 17:19:58,081 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-24 17:19:58,104 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-24 17:19:58,137 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-24 17:19:58,137 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-24 17:19:58,137 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-24 17:19:58,137 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-24 17:19:58,138 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-24 17:19:58,138 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-24 17:19:58,138 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-24 17:19:58,138 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-24 17:19:58,164 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states.
[2020-09-24 17:19:58,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-24 17:19:58,174 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:58,175 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:58,175 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:58,184 INFO L82 PathProgramCache]: Analyzing trace with hash -2050446892, now seen corresponding path program 1 times
[2020-09-24 17:19:58,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:58,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564746467]
[2020-09-24 17:19:58,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:58,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:58,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:58,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:58,664 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:58,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 17:19:58,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 17:19:58,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302
[2020-09-24 17:19:58,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:58,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36
[2020-09-24 17:19:58,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:58,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-24 17:19:58,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:19:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:58,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:58,749 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:58,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:19:58,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:58,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-24 17:19:58,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:58,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:58,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:58,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-24 17:19:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:58,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:58,766 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:58,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:19:58,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-24 17:19:58,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:58,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-24 17:19:58,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:19:58,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564746467]
[2020-09-24 17:19:58,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:19:58,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-24 17:19:58,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067701274]
[2020-09-24 17:19:58,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-24 17:19:58,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:19:58,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-24 17:19:58,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 17:19:58,815 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 3 states.
[2020-09-24 17:19:58,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:19:58,988 INFO L93 Difference]: Finished difference Result 125 states and 142 transitions.
[2020-09-24 17:19:58,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-24 17:19:58,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33
[2020-09-24 17:19:58,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:19:59,002 INFO L225 Difference]: With dead ends: 125
[2020-09-24 17:19:59,003 INFO L226 Difference]: Without dead ends: 59
[2020-09-24 17:19:59,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-24 17:19:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states.
[2020-09-24 17:19:59,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59.
[2020-09-24 17:19:59,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states.
[2020-09-24 17:19:59,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions.
[2020-09-24 17:19:59,063 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 33
[2020-09-24 17:19:59,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:19:59,064 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions.
[2020-09-24 17:19:59,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-24 17:19:59,064 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions.
[2020-09-24 17:19:59,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-24 17:19:59,066 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:19:59,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:19:59,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-24 17:19:59,067 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:19:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:19:59,067 INFO L82 PathProgramCache]: Analyzing trace with hash -341126016, now seen corresponding path program 1 times
[2020-09-24 17:19:59,068 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:19:59,068 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1685651061]
[2020-09-24 17:19:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:19:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:59,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:59,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:59,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:59,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:59,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-24 17:19:59,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-24 17:19:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 653
[2020-09-24 17:19:59,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-24 17:19:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-24 17:19:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-24 17:19:59,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:19:59,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-24 17:19:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:59,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:59,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:59,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-24 17:19:59,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:59,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7
[2020-09-24 17:19:59,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-24 17:19:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-24 17:19:59,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:19:59,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-24 17:19:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-24 17:19:59,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-24 17:19:59,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set)
[2020-09-24 17:19:59,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-24 17:19:59,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-24 17:19:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10
[2020-09-24 17:19:59,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM
[2020-09-24 17:19:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-24 17:19:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-24 17:19:59,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-24 17:19:59,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0
[2020-09-24 17:19:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-24 17:19:59,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1685651061]
[2020-09-24 17:19:59,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-24 17:19:59,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-24 17:19:59,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945314315]
[2020-09-24 17:19:59,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-24 17:19:59,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-24 17:19:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-24 17:19:59,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-24 17:19:59,824 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 5 states.
[2020-09-24 17:20:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-24 17:20:00,002 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions.
[2020-09-24 17:20:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-24 17:20:00,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2020-09-24 17:20:00,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-24 17:20:00,004 INFO L225 Difference]: With dead ends: 93
[2020-09-24 17:20:00,004 INFO L226 Difference]: Without dead ends: 62
[2020-09-24 17:20:00,006 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-09-24 17:20:00,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2020-09-24 17:20:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2020-09-24 17:20:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states.
[2020-09-24 17:20:00,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions.
[2020-09-24 17:20:00,017 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 33
[2020-09-24 17:20:00,017 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-24 17:20:00,017 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions.
[2020-09-24 17:20:00,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-24 17:20:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions.
[2020-09-24 17:20:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2020-09-24 17:20:00,019 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-24 17:20:00,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-24 17:20:00,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-24 17:20:00,020 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-24 17:20:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-24 17:20:00,021 INFO L82 PathProgramCache]: Analyzing trace with hash 746418975, now seen corresponding path program 1 times
[2020-09-24 17:20:00,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-24 17:20:00,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956390821]
[2020-09-24 17:20:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-24 17:20:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-24 17:20:00,050 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-24 17:20:00,050 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-24 17:20:00,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-24 17:20:00,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:20:00 BoogieIcfgContainer
[2020-09-24 17:20:00,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-24 17:20:00,082 INFO L168 Benchmark]: Toolchain (without parser) took 2971.72 ms. Allocated memory was 139.5 MB in the beginning and 235.4 MB in the end (delta: 95.9 MB). Free memory was 103.0 MB in the beginning and 138.9 MB in the end (delta: -35.9 MB). Peak memory consumption was 60.0 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:00,083 INFO L168 Benchmark]: CDTParser took 0.32 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.
[2020-09-24 17:20:00,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.50 ms. Allocated memory is still 139.5 MB. Free memory was 102.4 MB in the beginning and 91.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:00,084 INFO L168 Benchmark]: Boogie Preprocessor took 129.84 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.8 MB in the beginning and 179.1 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:00,085 INFO L168 Benchmark]: RCFGBuilder took 465.43 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 158.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:00,086 INFO L168 Benchmark]: TraceAbstraction took 2026.71 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 158.1 MB in the beginning and 138.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB.
[2020-09-24 17:20:00,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 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 335.50 ms. Allocated memory is still 139.5 MB. Free memory was 102.4 MB in the beginning and 91.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 129.84 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 91.8 MB in the beginning and 179.1 MB in the end (delta: -87.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 465.43 ms. Allocated memory is still 201.9 MB. Free memory was 179.1 MB in the beginning and 158.8 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2026.71 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 158.1 MB in the beginning and 138.9 MB in the end (delta: 19.2 MB). Peak memory consumption was 52.7 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable
a call of __VERIFIER_error() is reachable
We found a FailurePath:
[L17] int N;
[L21] N = __VERIFIER_nondet_int()
[L22] COND FALSE !(N <= 0)
[L23] CALL assume_abort_if_not(N <= 2147483647/sizeof(int))
[L11] COND FALSE !(!cond)
[L23] RET assume_abort_if_not(N <= 2147483647/sizeof(int))
[L25] int i;
[L26] long long sum[1];
[L27] int *a = malloc(sizeof(int)*N);
[L29] sum[0] = N
[L30] i=0
[L30] COND TRUE i<N
[L32] a[i] = 1
[L30] i++
[L30] COND FALSE !(i<N)
[L35] i=0
[L35] COND TRUE i<N
[L37] EXPR a[i]
[L37] COND TRUE a[i] == 1
[L38] EXPR a[i]
[L38] a[i] = a[i] + 1
[L35] i++
[L35] COND FALSE !(i<N)
[L44] i=0
[L44] COND TRUE i<N
[L46] EXPR sum[0]
[L46] EXPR a[i]
[L46] sum[0] = sum[0] + a[i]
[L44] i++
[L44] COND FALSE !(i<N)
[L49] EXPR sum[0]
[L49] CALL __VERIFIER_assert(sum[0] == 2*N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 118 SDtfs, 83 SDslu, 30 SDs, 0 SdLazy, 148 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 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 incorrect!
Received shutdown request...