/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ms2f.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 11:23:08,689 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 11:23:08,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 11:23:08,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 11:23:08,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 11:23:08,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 11:23:08,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 11:23:08,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 11:23:08,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 11:23:08,763 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 11:23:08,764 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 11:23:08,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 11:23:08,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 11:23:08,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 11:23:08,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 11:23:08,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 11:23:08,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 11:23:08,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 11:23:08,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 11:23:08,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 11:23:08,797 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 11:23:08,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 11:23:08,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 11:23:08,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 11:23:08,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 11:23:08,806 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 11:23:08,806 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 11:23:08,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 11:23:08,810 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 11:23:08,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 11:23:08,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 11:23:08,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 11:23:08,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 11:23:08,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 11:23:08,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 11:23:08,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 11:23:08,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 11:23:08,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 11:23:08,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 11:23:08,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 11:23:08,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 11:23:08,822 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-09-25 11:23:08,873 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 11:23:08,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 11:23:08,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 11:23:08,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 11:23:08,876 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 11:23:08,877 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 11:23:08,877 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 11:23:08,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 11:23:08,877 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 11:23:08,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 11:23:08,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 11:23:08,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 11:23:08,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 11:23:08,880 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 11:23:08,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 11:23:08,881 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 11:23:08,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 11:23:08,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 11:23:08,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 11:23:08,882 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 11:23:08,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 11:23:08,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:23:08,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 11:23:08,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 11:23:08,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 11:23:08,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 11:23:08,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 11:23:08,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 11:23:08,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 11:23:08,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;
[2020-09-25 11:23:09,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 11:23:09,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 11:23:09,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 11:23:09,404 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 11:23:09,405 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 11:23:09,406 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ms2f.c
[2020-09-25 11:23:09,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddf4119bd/3320ed0224a44cb6a9057bc9c64ef163/FLAGc3848c875
[2020-09-25 11:23:10,077 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 11:23:10,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/ms2f.c
[2020-09-25 11:23:10,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddf4119bd/3320ed0224a44cb6a9057bc9c64ef163/FLAGc3848c875
[2020-09-25 11:23:10,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ddf4119bd/3320ed0224a44cb6a9057bc9c64ef163
[2020-09-25 11:23:10,366 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 11:23:10,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 11:23:10,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 11:23:10,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 11:23:10,380 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 11:23:10,381 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aafda97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10, skipping insertion in model container
[2020-09-25 11:23:10,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 11:23:10,416 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 11:23:10,663 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:23:10,674 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 11:23:10,698 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:23:10,719 INFO L208 MainTranslator]: Completed translation
[2020-09-25 11:23:10,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10 WrapperNode
[2020-09-25 11:23:10,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 11:23:10,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 11:23:10,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 11:23:10,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 11:23:10,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
[2020-09-25 11:23:10,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 11:23:10,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 11:23:10,851 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 11:23:10,851 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 11:23:10,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:23:10,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 11:23:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 11:23:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 11:23:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 11:23:10,928 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 11:23:10,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 11:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 11:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 11:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 11:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 11:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 11:23:10,929 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 11:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-09-25 11:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 11:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 11:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 11:23:10,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 11:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 11:23:10,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 11:23:11,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 11:23:11,271 INFO L295 CfgBuilder]: Removed 2 assume(true) statements.
[2020-09-25 11:23:11,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:23:11 BoogieIcfgContainer
[2020-09-25 11:23:11,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 11:23:11,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 11:23:11,279 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 11:23:11,282 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 11:23:11,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:23:10" (1/3) ...
[2020-09-25 11:23:11,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad69bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:23:11, skipping insertion in model container
[2020-09-25 11:23:11,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:10" (2/3) ...
[2020-09-25 11:23:11,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad69bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:23:11, skipping insertion in model container
[2020-09-25 11:23:11,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:23:11" (3/3) ...
[2020-09-25 11:23:11,287 INFO L109 eAbstractionObserver]: Analyzing ICFG ms2f.c
[2020-09-25 11:23:11,299 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 11:23:11,309 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 11:23:11,331 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 11:23:11,359 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 11:23:11,359 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 11:23:11,360 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 11:23:11,360 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 11:23:11,360 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 11:23:11,360 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 11:23:11,360 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 11:23:11,360 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 11:23:11,382 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states.
[2020-09-25 11:23:11,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-25 11:23:11,389 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:11,390 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]
[2020-09-25 11:23:11,391 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:11,398 INFO L82 PathProgramCache]: Analyzing trace with hash -845632023, now seen corresponding path program 1 times
[2020-09-25 11:23:11,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:11,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1898490401]
[2020-09-25 11:23:11,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:11,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:11,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:11,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:11,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 11:23:11,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 11:23:11,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 195
[2020-09-25 11:23:11,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:11,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:11,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:11,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33
[2020-09-25 11:23:11,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:11,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4
[2020-09-25 11:23:11,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:23:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:11,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:11,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:11,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 11:23:11,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:11,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24
[2020-09-25 11:23:11,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:11,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:11,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:11,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:11,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:11,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2
[2020-09-25 11:23:11,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 11:23:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:11,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:11,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 11:23:11,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18
[2020-09-25 11:23:11,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:11,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:11,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:11,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:11,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 11:23:11,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1898490401]
[2020-09-25 11:23:11,965 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:23:11,965 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 11:23:11,966 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750759437]
[2020-09-25 11:23:11,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 11:23:11,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:23:11,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 11:23:11,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 11:23:11,995 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states.
[2020-09-25 11:23:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:23:12,168 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions.
[2020-09-25 11:23:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 11:23:12,170 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30
[2020-09-25 11:23:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:23:12,182 INFO L225 Difference]: With dead ends: 97
[2020-09-25 11:23:12,182 INFO L226 Difference]: Without dead ends: 45
[2020-09-25 11:23:12,187 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 11:23:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states.
[2020-09-25 11:23:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45.
[2020-09-25 11:23:12,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states.
[2020-09-25 11:23:12,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 47 transitions.
[2020-09-25 11:23:12,240 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 47 transitions. Word has length 30
[2020-09-25 11:23:12,240 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:23:12,240 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 47 transitions.
[2020-09-25 11:23:12,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 11:23:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 47 transitions.
[2020-09-25 11:23:12,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2020-09-25 11:23:12,242 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:12,243 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]
[2020-09-25 11:23:12,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 11:23:12,243 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:12,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:12,244 INFO L82 PathProgramCache]: Analyzing trace with hash 104990277, now seen corresponding path program 1 times
[2020-09-25 11:23:12,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:12,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421264724]
[2020-09-25 11:23:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:12,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:12,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:12,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:12,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41
[2020-09-25 11:23:12,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2
[2020-09-25 11:23:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389
[2020-09-25 11:23:12,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:12,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 11:23:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 11:23:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14
[2020-09-25 11:23:12,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:12,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:23:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:12,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:12,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 11:23:12,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5
[2020-09-25 11:23:12,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:12,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:12,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 11:23:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:12,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:12,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:12,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 11:23:12,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:12,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13
[2020-09-25 11:23:12,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:12,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 11:23:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:12,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 11:23:12,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:12,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-09-25 11:23:12,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421264724]
[2020-09-25 11:23:12,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:23:12,767 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 11:23:12,767 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353573010]
[2020-09-25 11:23:12,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 11:23:12,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:23:12,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 11:23:12,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 11:23:12,771 INFO L87 Difference]: Start difference. First operand 45 states and 47 transitions. Second operand 5 states.
[2020-09-25 11:23:12,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:23:12,930 INFO L93 Difference]: Finished difference Result 65 states and 70 transitions.
[2020-09-25 11:23:12,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 11:23:12,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30
[2020-09-25 11:23:12,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:23:12,932 INFO L225 Difference]: With dead ends: 65
[2020-09-25 11:23:12,933 INFO L226 Difference]: Without dead ends: 47
[2020-09-25 11:23:12,934 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 11:23:12,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2020-09-25 11:23:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2020-09-25 11:23:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states.
[2020-09-25 11:23:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions.
[2020-09-25 11:23:12,945 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 30
[2020-09-25 11:23:12,946 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:23:12,946 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions.
[2020-09-25 11:23:12,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 11:23:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions.
[2020-09-25 11:23:12,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2020-09-25 11:23:12,948 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:12,948 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]
[2020-09-25 11:23:12,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 11:23:12,949 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:12,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:12,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1687643347, now seen corresponding path program 1 times
[2020-09-25 11:23:12,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:12,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [400292672]
[2020-09-25 11:23:12,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-09-25 11:23:12,976 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-09-25 11:23:12,976 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 11:23:12,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 11:23:13,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:23:13 BoogieIcfgContainer
[2020-09-25 11:23:13,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 11:23:13,012 INFO L168 Benchmark]: Toolchain (without parser) took 2642.14 ms. Allocated memory was 147.3 MB in the beginning and 231.7 MB in the end (delta: 84.4 MB). Free memory was 104.8 MB in the beginning and 166.4 MB in the end (delta: -61.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:13,013 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 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 11:23:13,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.54 ms. Allocated memory is still 147.3 MB. Free memory was 104.1 MB in the beginning and 93.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:13,015 INFO L168 Benchmark]: Boogie Preprocessor took 129.68 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 93.7 MB in the beginning and 182.5 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:13,016 INFO L168 Benchmark]: RCFGBuilder took 426.77 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 163.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:13,017 INFO L168 Benchmark]: TraceAbstraction took 1729.29 ms. Allocated memory was 204.5 MB in the beginning and 231.7 MB in the end (delta: 27.3 MB). Free memory was 163.2 MB in the beginning and 166.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:13,021 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 147.3 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 346.54 ms. Allocated memory is still 147.3 MB. Free memory was 104.1 MB in the beginning and 93.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 129.68 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 93.7 MB in the beginning and 182.5 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 426.77 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 163.8 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1729.29 ms. Allocated memory was 204.5 MB in the beginning and 231.7 MB in the end (delta: 27.3 MB). Free memory was 163.2 MB in the beginning and 166.4 MB in the end (delta: -3.2 MB). Peak memory consumption was 24.0 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] int sum[1];
[L27] int *a = malloc(sizeof(int)*N);
[L29] i=0
[L29] COND TRUE i<N
[L31] a[i] = i%2
[L29] i++
[L29] COND FALSE !(i<N)
[L34] i=0
[L34] COND TRUE i<N
[L36] COND TRUE i==0
[L37] sum[0] = 0
[L34] i++
[L34] COND FALSE !(i<N)
[L42] EXPR sum[0]
[L42] CALL __VERIFIER_assert(sum[0] > N)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 95 SDtfs, 62 SDslu, 29 SDs, 0 SdLazy, 108 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred 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, 0.8s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2842 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...