/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/indp1f.c
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-c90d42b
[2020-09-25 11:23:03,173 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-09-25 11:23:03,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-09-25 11:23:03,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-09-25 11:23:03,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-09-25 11:23:03,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-09-25 11:23:03,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-09-25 11:23:03,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-09-25 11:23:03,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-09-25 11:23:03,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-09-25 11:23:03,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-09-25 11:23:03,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-09-25 11:23:03,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-09-25 11:23:03,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-09-25 11:23:03,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-09-25 11:23:03,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-09-25 11:23:03,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-09-25 11:23:03,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-09-25 11:23:03,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-09-25 11:23:03,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-09-25 11:23:03,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-09-25 11:23:03,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-09-25 11:23:03,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-09-25 11:23:03,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-09-25 11:23:03,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-09-25 11:23:03,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-09-25 11:23:03,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-09-25 11:23:03,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-09-25 11:23:03,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-09-25 11:23:03,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-09-25 11:23:03,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-09-25 11:23:03,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-09-25 11:23:03,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-09-25 11:23:03,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2020-09-25 11:23:03,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-09-25 11:23:03,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-09-25 11:23:03,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-09-25 11:23:03,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-09-25 11:23:03,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-09-25 11:23:03,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-09-25 11:23:03,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-09-25 11:23:03,306 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 11:23:03,349 INFO L113 SettingsManager]: Loading preferences was successful
[2020-09-25 11:23:03,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-09-25 11:23:03,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-09-25 11:23:03,352 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-09-25 11:23:03,352 INFO L138 SettingsManager]: * Use SBE=true
[2020-09-25 11:23:03,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-09-25 11:23:03,353 INFO L138 SettingsManager]: * sizeof long=4
[2020-09-25 11:23:03,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-09-25 11:23:03,354 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-09-25 11:23:03,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-09-25 11:23:03,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-09-25 11:23:03,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-09-25 11:23:03,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-09-25 11:23:03,356 INFO L138 SettingsManager]: * sizeof long double=12
[2020-09-25 11:23:03,356 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-09-25 11:23:03,357 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-09-25 11:23:03,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-09-25 11:23:03,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-09-25 11:23:03,357 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-09-25 11:23:03,357 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-09-25 11:23:03,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-09-25 11:23:03,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-09-25 11:23:03,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-09-25 11:23:03,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-09-25 11:23:03,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-09-25 11:23:03,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-09-25 11:23:03,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-09-25 11:23:03,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-09-25 11:23:03,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-09-25 11:23:03,359 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 11:23:03,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-09-25 11:23:03,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-09-25 11:23:03,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-09-25 11:23:03,885 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-09-25 11:23:03,885 INFO L275 PluginConnector]: CDTParser initialized
[2020-09-25 11:23:03,886 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/indp1f.c
[2020-09-25 11:23:03,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b229c3c36/e02b4d2d75dd4ec0a6179724631c7bea/FLAGee1877d5f
[2020-09-25 11:23:04,520 INFO L306 CDTParser]: Found 1 translation units.
[2020-09-25 11:23:04,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-fpi/indp1f.c
[2020-09-25 11:23:04,529 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b229c3c36/e02b4d2d75dd4ec0a6179724631c7bea/FLAGee1877d5f
[2020-09-25 11:23:04,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b229c3c36/e02b4d2d75dd4ec0a6179724631c7bea
[2020-09-25 11:23:04,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-09-25 11:23:04,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-09-25 11:23:04,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-09-25 11:23:04,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-09-25 11:23:04,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-09-25 11:23:04,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:23:04" (1/1) ...
[2020-09-25 11:23:04,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@beaab2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:04, skipping insertion in model container
[2020-09-25 11:23:04,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:23:04" (1/1) ...
[2020-09-25 11:23:04,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-09-25 11:23:04,919 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-09-25 11:23:05,149 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:23:05,163 INFO L203 MainTranslator]: Completed pre-run
[2020-09-25 11:23:05,188 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-09-25 11:23:05,209 INFO L208 MainTranslator]: Completed translation
[2020-09-25 11:23:05,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05 WrapperNode
[2020-09-25 11:23:05,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-09-25 11:23:05,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-09-25 11:23:05,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-09-25 11:23:05,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-09-25 11:23:05,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (1/1) ...
[2020-09-25 11:23:05,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-09-25 11:23:05,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-09-25 11:23:05,342 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-09-25 11:23:05,343 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-09-25 11:23:05,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (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 11:23:05,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-09-25 11:23:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-09-25 11:23:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2020-09-25 11:23:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-09-25 11:23:05,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-09-25 11:23:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-09-25 11:23:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-09-25 11:23:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2020-09-25 11:23:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-09-25 11:23:05,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-09-25 11:23:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2020-09-25 11:23:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-09-25 11:23:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-09-25 11:23:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-09-25 11:23:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-09-25 11:23:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-09-25 11:23:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-09-25 11:23:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-09-25 11:23:05,748 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-09-25 11:23:05,749 INFO L295 CfgBuilder]: Removed 4 assume(true) statements.
[2020-09-25 11:23:05,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:23:05 BoogieIcfgContainer
[2020-09-25 11:23:05,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-09-25 11:23:05,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-09-25 11:23:05,756 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-09-25 11:23:05,760 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-09-25 11:23:05,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:23:04" (1/3) ...
[2020-09-25 11:23:05,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64076b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:23:05, skipping insertion in model container
[2020-09-25 11:23:05,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:23:05" (2/3) ...
[2020-09-25 11:23:05,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64076b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:23:05, skipping insertion in model container
[2020-09-25 11:23:05,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:23:05" (3/3) ...
[2020-09-25 11:23:05,765 INFO L109 eAbstractionObserver]: Analyzing ICFG indp1f.c
[2020-09-25 11:23:05,777 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-09-25 11:23:05,789 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-09-25 11:23:05,812 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-09-25 11:23:05,845 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-09-25 11:23:05,846 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-09-25 11:23:05,846 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-09-25 11:23:05,846 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-09-25 11:23:05,846 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-09-25 11:23:05,846 INFO L380 AbstractCegarLoop]: Difference is false
[2020-09-25 11:23:05,846 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-09-25 11:23:05,847 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-09-25 11:23:05,872 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states.
[2020-09-25 11:23:05,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 11:23:05,881 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:05,882 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 11:23:05,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:05,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:05,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1846170158, now seen corresponding path program 1 times
[2020-09-25 11:23:05,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:05,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141778881]
[2020-09-25 11:23:05,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:06,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:06,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 11:23:06,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3
[2020-09-25 11:23:06,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242
[2020-09-25 11:23:06,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:06,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:06,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30
[2020-09-25 11:23:06,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:06,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5
[2020-09-25 11:23:06,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:23:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:06,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:06,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 11:23:06,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:06,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14
[2020-09-25 11:23:06,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:06,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:06,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:06,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:06,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:06,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 11:23:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:06,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:06,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 11:23:06,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:06,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9
[2020-09-25 11:23:06,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:06,474 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:06,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:06,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:06,487 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 11:23:06,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [141778881]
[2020-09-25 11:23:06,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:23:06,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-09-25 11:23:06,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988210424]
[2020-09-25 11:23:06,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-09-25 11:23:06,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:23:06,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-09-25 11:23:06,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-09-25 11:23:06,522 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 3 states.
[2020-09-25 11:23:06,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:23:06,702 INFO L93 Difference]: Finished difference Result 109 states and 128 transitions.
[2020-09-25 11:23:06,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-09-25 11:23:06,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33
[2020-09-25 11:23:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:23:06,716 INFO L225 Difference]: With dead ends: 109
[2020-09-25 11:23:06,717 INFO L226 Difference]: Without dead ends: 56
[2020-09-25 11:23:06,722 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 11:23:06,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states.
[2020-09-25 11:23:06,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56.
[2020-09-25 11:23:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states.
[2020-09-25 11:23:06,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions.
[2020-09-25 11:23:06,778 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 33
[2020-09-25 11:23:06,779 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:23:06,779 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions.
[2020-09-25 11:23:06,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-09-25 11:23:06,779 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions.
[2020-09-25 11:23:06,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2020-09-25 11:23:06,781 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:06,781 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 11:23:06,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-09-25 11:23:06,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:06,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:06,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1457656721, now seen corresponding path program 1 times
[2020-09-25 11:23:06,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:06,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [375035005]
[2020-09-25 11:23:06,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:06,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:06,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:06,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:07,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:07,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:07,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:08,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:08,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44
[2020-09-25 11:23:08,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6
[2020-09-25 11:23:08,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1250
[2020-09-25 11:23:08,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:08,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:08,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3
[2020-09-25 11:23:08,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18
[2020-09-25 11:23:08,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17
[2020-09-25 11:23:08,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 10
[2020-09-25 11:23:08,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2020-09-25 11:23:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:08,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:08,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:08,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12
[2020-09-25 11:23:08,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:08,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8
[2020-09-25 11:23:08,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:08,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1
[2020-09-25 11:23:08,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:08,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1
[2020-09-25 11:23:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:08,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2020-09-25 11:23:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-09-25 11:23:08,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking...
[2020-09-25 11:23:08,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000
[2020-09-25 11:23:08,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10
[2020-09-25 11:23:08,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1
[2020-09-25 11:23:08,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12
[2020-09-25 11:23:08,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE
[2020-09-25 11:23:08,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2
[2020-09-25 11:23:08,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2
[2020-09-25 11:23:08,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2
[2020-09-25 11:23:08,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6
[2020-09-25 11:23:08,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1
[2020-09-25 11:23:08,167 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 11:23:08,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [375035005]
[2020-09-25 11:23:08,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-09-25 11:23:08,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2020-09-25 11:23:08,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236049002]
[2020-09-25 11:23:08,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-09-25 11:23:08,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2020-09-25 11:23:08,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-09-25 11:23:08,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-09-25 11:23:08,173 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand 5 states.
[2020-09-25 11:23:08,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-09-25 11:23:08,403 INFO L93 Difference]: Finished difference Result 90 states and 98 transitions.
[2020-09-25 11:23:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2020-09-25 11:23:08,403 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33
[2020-09-25 11:23:08,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-09-25 11:23:08,405 INFO L225 Difference]: With dead ends: 90
[2020-09-25 11:23:08,405 INFO L226 Difference]: Without dead ends: 60
[2020-09-25 11:23:08,407 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 11:23:08,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states.
[2020-09-25 11:23:08,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 59.
[2020-09-25 11:23:08,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states.
[2020-09-25 11:23:08,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions.
[2020-09-25 11:23:08,419 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 33
[2020-09-25 11:23:08,419 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-09-25 11:23:08,419 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions.
[2020-09-25 11:23:08,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-09-25 11:23:08,420 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions.
[2020-09-25 11:23:08,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2020-09-25 11:23:08,422 INFO L414 BasicCegarLoop]: Found error trace
[2020-09-25 11:23:08,422 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]
[2020-09-25 11:23:08,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-09-25 11:23:08,422 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-09-25 11:23:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-09-25 11:23:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1203755678, now seen corresponding path program 1 times
[2020-09-25 11:23:08,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-09-25 11:23:08,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102347096]
[2020-09-25 11:23:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-09-25 11:23:08,437 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2020-09-25 11:23:08,437 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility
[2020-09-25 11:23:08,437 INFO L520 BasicCegarLoop]: Counterexample might be feasible
[2020-09-25 11:23:08,443 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-09-25 11:23:08,466 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually.
[2020-09-25 11:23:08,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 11:23:08 BoogieIcfgContainer
[2020-09-25 11:23:08,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-09-25 11:23:08,470 INFO L168 Benchmark]: Toolchain (without parser) took 3600.55 ms. Allocated memory was 138.4 MB in the beginning and 232.8 MB in the end (delta: 94.4 MB). Free memory was 101.4 MB in the beginning and 108.7 MB in the end (delta: -7.4 MB). Peak memory consumption was 87.0 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:08,471 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB.
[2020-09-25 11:23:08,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.97 ms. Allocated memory is still 138.4 MB. Free memory was 100.9 MB in the beginning and 90.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:08,473 INFO L168 Benchmark]: Boogie Preprocessor took 129.70 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.5 MB in the beginning and 179.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:08,474 INFO L168 Benchmark]: RCFGBuilder took 412.78 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 160.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:08,475 INFO L168 Benchmark]: TraceAbstraction took 2710.22 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 159.3 MB in the beginning and 108.7 MB in the end (delta: 50.6 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB.
[2020-09-25 11:23:08,479 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.18 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.5 MB in the end (delta: 419.6 kB). Peak memory consumption was 419.6 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 339.97 ms. Allocated memory is still 138.4 MB. Free memory was 100.9 MB in the beginning and 90.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 129.70 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 90.5 MB in the beginning and 179.6 MB in the end (delta: -89.0 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 412.78 ms. Allocated memory is still 201.9 MB. Free memory was 179.6 MB in the beginning and 160.3 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2710.22 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 159.3 MB in the beginning and 108.7 MB in the end (delta: 50.6 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: unable to decide satisfiability of path constraint.
Possible 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 *a = malloc(sizeof(long long)*N);
[L28] i=0
[L28] COND TRUE i<N
[L30] a[i]=((i+1)*(i+1))
[L28] i++
[L28] COND FALSE !(i<N)
[L33] i=0
[L33] COND TRUE i<N
[L35] EXPR a[i]
[L35] a[i]=a[i]-(i*i)
[L33] i++
[L33] COND FALSE !(i<N)
[L38] i=0
[L38] COND TRUE i<N
[L40] EXPR a[i]
[L40] a[i]=a[i]-i
[L38] i++
[L38] COND FALSE !(i<N)
[L43] i=0
[L43] COND TRUE i<N
[L45] EXPR a[i]
[L45] CALL __VERIFIER_assert(a[i]==i)
[L13] COND TRUE !(cond)
[L13] __VERIFIER_error()
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 5 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 77 SDslu, 29 SDs, 0 SdLazy, 138 SolverSat, 18 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, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3520 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 could not prove your program: unable to determine feasibility of some traces
Received shutdown request...