/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=0.4 --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/s42iff.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 05:42:56,522 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 05:42:56,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 05:42:56,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 05:42:56,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 05:42:56,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 05:42:56,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 05:42:56,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 05:42:56,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 05:42:56,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 05:42:56,598 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 05:42:56,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 05:42:56,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 05:42:56,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 05:42:56,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 05:42:56,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 05:42:56,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 05:42:56,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 05:42:56,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 05:42:56,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 05:42:56,625 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 05:42:56,626 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 05:42:56,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 05:42:56,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 05:42:56,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 05:42:56,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 05:42:56,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 05:42:56,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 05:42:56,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 05:42:56,637 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 05:42:56,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 05:42:56,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 05:42:56,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 05:42:56,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 05:42:56,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 05:42:56,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 05:42:56,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 05:42:56,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 05:42:56,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 05:42:56,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 05:42:56,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 05:42:56,646 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 05:42:56,695 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 05:42:56,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 05:42:56,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 05:42:56,698 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 05:42:56,698 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 05:42:56,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 05:42:56,699 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 05:42:56,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 05:42:56,699 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 05:42:56,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 05:42:56,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 05:42:56,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 05:42:56,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 05:42:56,702 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 05:42:56,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 05:42:56,702 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 05:42:56,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 05:42:56,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 05:42:56,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 05:42:56,703 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 05:42:56,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 05:42:56,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 05:42:56,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 05:42:56,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 05:42:56,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 05:42:56,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 05:42:56,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 05:42:56,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 05:42:56,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 05:42:56,705 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true;
[2020-09-25 05:42:57,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 05:42:57,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 05:42:57,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 05:42:57,225 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 05:42:57,226 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 05:42:57,227 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/s42iff.c
[2020-09-25 05:42:57,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/351ef3cdc/7b7e8a7a80e44221acb808968d7b29b7/FLAG73b714849
[2020-09-25 05:42:57,848 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 05:42:57,849 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/s42iff.c
[2020-09-25 05:42:57,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/351ef3cdc/7b7e8a7a80e44221acb808968d7b29b7/FLAG73b714849
[2020-09-25 05:42:58,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/351ef3cdc/7b7e8a7a80e44221acb808968d7b29b7
[2020-09-25 05:42:58,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 05:42:58,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 05:42:58,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 05:42:58,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 05:42:58,231 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 05:42:58,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217a2c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58, skipping insertion in model container
[2020-09-25 05:42:58,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 05:42:58,268 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 05:42:58,490 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:42:58,500 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 05:42:58,525 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 05:42:58,543 INFO L208 MainTranslator]: Completed translation
[2020-09-25 05:42:58,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58 WrapperNode
[2020-09-25 05:42:58,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 05:42:58,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 05:42:58,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 05:42:58,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 05:42:58,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (1/1) ...
[2020-09-25 05:42:58,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 05:42:58,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 05:42:58,675 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 05:42:58,675 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 05:42:58,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (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 05:42:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 05:42:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 05:42:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 05:42:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 05:42:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 05:42:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 05:42:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 05:42:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 05:42:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 05:42:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 05:42:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 05:42:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 05:42:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 05:42:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 05:42:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 05:42:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 05:42:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 05:42:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 05:42:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 05:42:59,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 05:42:59,142 INFO L295 CfgBuilder]: Removed 3 assume(true) statements.
[2020-09-25 05:42:59,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:42:59 BoogieIcfgContainer
[2020-09-25 05:42:59,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 05:42:59,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 05:42:59,150 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 05:42:59,153 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 05:42:59,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:42:58" (1/3) ...
[2020-09-25 05:42:59,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e600775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:42:59, skipping insertion in model container
[2020-09-25 05:42:59,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:42:58" (2/3) ...
[2020-09-25 05:42:59,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e600775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:42:59, skipping insertion in model container
[2020-09-25 05:42:59,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:42:59" (3/3) ...
[2020-09-25 05:42:59,158 INFO L109 eAbstractionObserver]: Analyzing ICFG s42iff.c
[2020-09-25 05:42:59,169 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 05:42:59,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 05:42:59,202 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 05:42:59,235 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 05:42:59,235 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 05:42:59,235 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 05:42:59,235 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 05:42:59,235 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 05:42:59,235 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 05:42:59,235 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 05:42:59,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 05:42:59,257 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states.
[2020-09-25 05:42:59,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 05:42:59,265 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:42:59,266 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]
[2020-09-25 05:42:59,267 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:42:59,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:42:59,273 INFO L82 PathProgramCache]: Analyzing trace with hash 350973390, now seen corresponding path program 1 times
[2020-09-25 05:42:59,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:42:59,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957769589]
[2020-09-25 05:42:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:42:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:59,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:59,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:59,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:59,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 05:42:59,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 05:42:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279
[2020-09-25 05:42:59,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:59,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32
[2020-09-25 05:42:59,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 05:42:59,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:42:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:59,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:59,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:59,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 05:42:59,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:59,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 05:42:59,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:59,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:59,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:59,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:59,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 05:42:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:42:59,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:42:59,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:42:59,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 05:42:59,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:42:59,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 05:42:59,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:42:59,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:42:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:42:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:42:59,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:42:59,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:42:59,887 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 05:42:59,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957769589]
[2020-09-25 05:42:59,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:42:59,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 05:42:59,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265823054]
[2020-09-25 05:42:59,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 05:42:59,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:42:59,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 05:42:59,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 05:42:59,921 INFO L87 Difference]: Start difference. First operand 80 states. Second operand 3 states.
[2020-09-25 05:43:00,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:43:00,135 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions.
[2020-09-25 05:43:00,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 05:43:00,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33
[2020-09-25 05:43:00,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:43:00,150 INFO L225 Difference]: With dead ends: 143
[2020-09-25 05:43:00,150 INFO L226 Difference]: Without dead ends: 68
[2020-09-25 05:43:00,155 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
[2020-09-25 05:43:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2020-09-25 05:43:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2020-09-25 05:43:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states.
[2020-09-25 05:43:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 72 transitions.
[2020-09-25 05:43:00,213 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 72 transitions. Word has length 33
[2020-09-25 05:43:00,214 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:43:00,214 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 72 transitions.
[2020-09-25 05:43:00,214 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 05:43:00,214 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 72 transitions.
[2020-09-25 05:43:00,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 05:43:00,216 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:43:00,216 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]
[2020-09-25 05:43:00,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 05:43:00,217 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:43:00,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:43:00,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1688115303, now seen corresponding path program 1 times
[2020-09-25 05:43:00,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:43:00,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391392309]
[2020-09-25 05:43:00,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:43:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:43:00,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:43:00,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:43:00,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:43:00,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:43:00,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 05:43:00,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 05:43:00,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 686
[2020-09-25 05:43:00,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:43:00,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:43:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 05:43:00,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 05:43:00,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19
[2020-09-25 05:43:00,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:43:00,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 05:43:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:43:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:43:00,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:43:00,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 05:43:00,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:43:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 05:43:00,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:43:00,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:43:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 05:43:00,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:43:00,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 05:43:00,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:43:01,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 05:43:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 05:43:01,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 05:43:01,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 05:43:01,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 05:43:01,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 05:43:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 05:43:01,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL
[2020-09-25 05:43:01,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4
[2020-09-25 05:43:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 05:43:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 05:43:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 05:43:01,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 05:43:01,024 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 05:43:01,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391392309]
[2020-09-25 05:43:01,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 05:43:01,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 05:43:01,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317290289]
[2020-09-25 05:43:01,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 05:43:01,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 05:43:01,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 05:43:01,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 05:43:01,029 INFO L87 Difference]: Start difference. First operand 68 states and 72 transitions. Second operand 5 states.
[2020-09-25 05:43:01,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 05:43:01,223 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions.
[2020-09-25 05:43:01,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 05:43:01,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2020-09-25 05:43:01,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 05:43:01,225 INFO L225 Difference]: With dead ends: 111
[2020-09-25 05:43:01,225 INFO L226 Difference]: Without dead ends: 71
[2020-09-25 05:43:01,226 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
[2020-09-25 05:43:01,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2020-09-25 05:43:01,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2020-09-25 05:43:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states.
[2020-09-25 05:43:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions.
[2020-09-25 05:43:01,238 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 33
[2020-09-25 05:43:01,239 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 05:43:01,239 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions.
[2020-09-25 05:43:01,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 05:43:01,239 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions.
[2020-09-25 05:43:01,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2020-09-25 05:43:01,241 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 05:43:01,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-09-25 05:43:01,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 05:43:01,242 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 05:43:01,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 05:43:01,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1790069826, now seen corresponding path program 1 times
[2020-09-25 05:43:01,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 05:43:01,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [159679741]
[2020-09-25 05:43:01,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 05:43:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 05:43:01,274 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 05:43:01,274 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 05:43:01,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 05:43:01,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:43:01 BoogieIcfgContainer
[2020-09-25 05:43:01,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 05:43:01,308 INFO L168 Benchmark]: Toolchain (without parser) took 3088.30 ms. Allocated memory was 141.6 MB in the beginning and 234.9 MB in the end (delta: 93.3 MB). Free memory was 105.2 MB in the beginning and 130.8 MB in the end (delta: -25.6 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB.
[2020-09-25 05:43:01,309 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-09-25 05:43:01,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.06 ms. Allocated memory is still 141.6 MB. Free memory was 104.5 MB in the beginning and 93.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
[2020-09-25 05:43:01,311 INFO L168 Benchmark]: Boogie Preprocessor took 129.19 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.9 MB in the beginning and 181.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-25 05:43:01,312 INFO L168 Benchmark]: RCFGBuilder took 473.98 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 160.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
[2020-09-25 05:43:01,313 INFO L168 Benchmark]: TraceAbstraction took 2154.72 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 160.0 MB in the beginning and 130.8 MB in the end (delta: 29.2 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB.
[2020-09-25 05:43:01,317 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 141.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 321.06 ms. Allocated memory is still 141.6 MB. Free memory was 104.5 MB in the beginning and 93.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 129.19 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 93.9 MB in the beginning and 181.8 MB in the end (delta: -87.9 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 473.98 ms. Allocated memory is still 204.5 MB. Free memory was 181.8 MB in the beginning and 160.0 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2154.72 ms. Allocated memory was 204.5 MB in the beginning and 234.9 MB in the end (delta: 30.4 MB). Free memory was 160.0 MB in the beginning and 130.8 MB in the end (delta: 29.2 MB). Peak memory consumption was 59.6 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] = 1
[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] + 4
[L35] i++
[L35] COND FALSE !(i<N)
[L44] i=0
[L44] COND TRUE i<N
[L46] EXPR a[i]
[L46] COND TRUE a[i] == 5
[L48] EXPR sum[0]
[L48] EXPR a[i]
[L48] sum[0] = sum[0] + a[i]
[L44] i++
[L44] COND FALSE !(i<N)
[L54] EXPR sum[0]
[L54] CALL __VERIFIER_assert(sum[0] == 5*N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 137 SDtfs, 103 SDslu, 31 SDs, 0 SdLazy, 168 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=80occurred 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, 1.2s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 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...