/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-multidimensional/init-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:03:18,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:03:18,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:03:18,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:03:18,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:03:18,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:03:18,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:03:18,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:03:18,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:03:18,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:03:18,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:03:18,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:03:18,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:03:18,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:03:18,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:03:18,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:03:18,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:03:18,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:03:18,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:03:18,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:03:18,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:03:18,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:03:18,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:03:18,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:03:18,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:03:18,099 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:03:18,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:03:18,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:03:18,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:03:18,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:03:18,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:03:18,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:03:18,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:03:18,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:03:18,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:03:18,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:03:18,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:03:18,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:03:18,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:03:18,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:03:18,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:03:18,109 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 [2020-10-14 00:03:18,131 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:03:18,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:03:18,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:03:18,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:03:18,133 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:03:18,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:03:18,133 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:03:18,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:03:18,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:03:18,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:03:18,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:03:18,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:03:18,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:03:18,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:03:18,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:03:18,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:03:18,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:03:18,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:03:18,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:03:18,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:03:18,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:03:18,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:03:18,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:03:18,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:03:18,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:03:18,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:03:18,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:03:18,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:03:18,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:03:18,138 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:03:18,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:03:18,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:03:18,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:03:18,483 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:03:18,484 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:03:18,485 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/init-2-n-u.c [2020-10-14 00:03:18,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8df0d049c/246f5dd94cc8420d8e4af6d172b0df5a/FLAG695b32be1 [2020-10-14 00:03:19,051 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:03:19,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-multidimensional/init-2-n-u.c [2020-10-14 00:03:19,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8df0d049c/246f5dd94cc8420d8e4af6d172b0df5a/FLAG695b32be1 [2020-10-14 00:03:19,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8df0d049c/246f5dd94cc8420d8e4af6d172b0df5a [2020-10-14 00:03:19,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:03:19,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:03:19,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:19,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:03:19,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:03:19,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bc88a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19, skipping insertion in model container [2020-10-14 00:03:19,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:03:19,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:03:19,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:19,691 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:03:19,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:03:19,736 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:03:19,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19 WrapperNode [2020-10-14 00:03:19,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:03:19,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:03:19,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:03:19,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:03:19,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (1/1) ... [2020-10-14 00:03:19,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:03:19,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:03:19,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:03:19,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:03:19,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (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 [2020-10-14 00:03:19,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:03:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:03:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 00:03:19,980 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:03:19,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:03:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 00:03:19,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:03:19,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:03:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 00:03:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 00:03:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 00:03:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 00:03:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:03:19,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:03:20,209 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:03:20,210 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-14 00:03:20,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:20 BoogieIcfgContainer [2020-10-14 00:03:20,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:03:20,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:03:20,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:03:20,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:03:20,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:03:19" (1/3) ... [2020-10-14 00:03:20,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e10e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:20, skipping insertion in model container [2020-10-14 00:03:20,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:03:19" (2/3) ... [2020-10-14 00:03:20,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e10e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:03:20, skipping insertion in model container [2020-10-14 00:03:20,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:03:20" (3/3) ... [2020-10-14 00:03:20,222 INFO L109 eAbstractionObserver]: Analyzing ICFG init-2-n-u.c [2020-10-14 00:03:20,233 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:03:20,241 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:03:20,256 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:03:20,282 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:03:20,283 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:03:20,283 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:03:20,283 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:03:20,283 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:03:20,283 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:03:20,283 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:03:20,283 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:03:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-14 00:03:20,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-14 00:03:20,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:03:20,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:03:20,309 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:03:20,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:03:20,315 INFO L82 PathProgramCache]: Analyzing trace with hash 1832694891, now seen corresponding path program 1 times [2020-10-14 00:03:20,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:03:20,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494279120] [2020-10-14 00:03:20,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:03:20,423 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 00:03:20,423 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 00:03:20,424 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 00:03:20,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:03:20,444 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 00:03:20,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:03:20 BoogieIcfgContainer [2020-10-14 00:03:20,445 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:03:20,448 INFO L168 Benchmark]: Toolchain (without parser) took 1032.97 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 103.3 MB in the beginning and 155.5 MB in the end (delta: -52.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:20,449 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-14 00:03:20,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.24 ms. Allocated memory is still 147.8 MB. Free memory was 103.1 MB in the beginning and 92.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:20,452 INFO L168 Benchmark]: Boogie Preprocessor took 171.31 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 92.8 MB in the beginning and 181.9 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:20,453 INFO L168 Benchmark]: RCFGBuilder took 304.28 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 167.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:20,454 INFO L168 Benchmark]: TraceAbstraction took 229.82 ms. Allocated memory is still 204.5 MB. Free memory was 167.0 MB in the beginning and 155.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2020-10-14 00:03:20,458 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 322.24 ms. Allocated memory is still 147.8 MB. Free memory was 103.1 MB in the beginning and 92.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.31 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 92.8 MB in the beginning and 181.9 MB in the end (delta: -89.1 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 304.28 ms. Allocated memory is still 204.5 MB. Free memory was 181.9 MB in the beginning and 167.6 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 229.82 ms. Allocated memory is still 204.5 MB. Free memory was 167.0 MB in the beginning and 155.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5]: 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: [L14] int i,j; [L15] int m=1000,n=1500; [L16] int A [m][n]; [L17] int C=__VERIFIER_nondet_int(); [L19] i=0 [L20] j=0 [L21] COND FALSE !(i < m) [L32] i=0 [L33] j=0 [L34] COND TRUE i < m [L35] j=0 [L36] COND TRUE j < n [L38] EXPR A[i][j] [L38] CALL __VERIFIER_assert(A[i][j]==C) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...