/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/loop-new/gauss_sum.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:22:53,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:22:53,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:22:53,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:22:53,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:22:53,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:22:53,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:22:53,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:22:53,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:22:53,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:22:53,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:22:53,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:22:53,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:22:53,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:22:53,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:22:53,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:22:53,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:22:53,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:22:53,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:22:53,177 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:22:53,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:22:53,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:22:53,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:22:53,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:22:53,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:22:53,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:22:53,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:22:53,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:22:53,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:22:53,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:22:53,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:22:53,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:22:53,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:22:53,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:22:53,190 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:22:53,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:22:53,191 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:22:53,191 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:22:53,191 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:22:53,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:22:53,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:22:53,194 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 05:22:53,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:22:53,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:22:53,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:22:53,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:22:53,219 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:22:53,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:22:53,219 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:22:53,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:22:53,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:22:53,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:22:53,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:22:53,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:22:53,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:22:53,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:22:53,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:22:53,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:22:53,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:22:53,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:22:53,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:22:53,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:22:53,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:22:53,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:22:53,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:22:53,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:22:53,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:22:53,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:22:53,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:22:53,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:22:53,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:22:53,224 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 05:22:53,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:22:53,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:22:53,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:22:53,574 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:22:53,574 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:22:53,575 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2020-10-14 05:22:53,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c26a1793c/b48f8ccdeb2a4389a238f5b0be45ed9d/FLAGa30429054 [2020-10-14 05:22:54,078 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:22:54,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2020-10-14 05:22:54,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c26a1793c/b48f8ccdeb2a4389a238f5b0be45ed9d/FLAGa30429054 [2020-10-14 05:22:54,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c26a1793c/b48f8ccdeb2a4389a238f5b0be45ed9d [2020-10-14 05:22:54,528 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:22:54,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:22:54,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:22:54,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:22:54,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:22:54,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@657b60e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54, skipping insertion in model container [2020-10-14 05:22:54,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:22:54,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:22:54,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:22:54,757 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:22:54,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:22:54,792 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:22:54,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54 WrapperNode [2020-10-14 05:22:54,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:22:54,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:22:54,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:22:54,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:22:54,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (1/1) ... [2020-10-14 05:22:54,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:22:54,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:22:54,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:22:54,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:22:54,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (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 05:22:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:22:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:22:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 05:22:55,015 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:22:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:22:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:22:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 05:22:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:22:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 05:22:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:22:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:22:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:22:55,222 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:22:55,222 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 05:22:55,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:22:55 BoogieIcfgContainer [2020-10-14 05:22:55,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:22:55,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:22:55,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:22:55,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:22:55,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:22:54" (1/3) ... [2020-10-14 05:22:55,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2610796c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:22:55, skipping insertion in model container [2020-10-14 05:22:55,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:22:54" (2/3) ... [2020-10-14 05:22:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2610796c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:22:55, skipping insertion in model container [2020-10-14 05:22:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:22:55" (3/3) ... [2020-10-14 05:22:55,234 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2020-10-14 05:22:55,246 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:22:55,253 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:22:55,267 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:22:55,323 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:22:55,323 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:22:55,323 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:22:55,323 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:22:55,324 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:22:55,324 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:22:55,327 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:22:55,327 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:22:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-10-14 05:22:55,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 05:22:55,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:22:55,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:22:55,377 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:22:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:22:55,385 INFO L82 PathProgramCache]: Analyzing trace with hash 78127750, now seen corresponding path program 1 times [2020-10-14 05:22:55,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:22:55,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572062992] [2020-10-14 05:22:55,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:22:55,510 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 05:22:55,511 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 05:22:55,511 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 05:22:55,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:22:55,533 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 05:22:55,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:22:55 BoogieIcfgContainer [2020-10-14 05:22:55,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:22:55,537 INFO L168 Benchmark]: Toolchain (without parser) took 1006.09 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 101.4 MB in the beginning and 154.0 MB in the end (delta: -52.6 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-10-14 05:22:55,538 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-14 05:22:55,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.42 ms. Allocated memory is still 145.8 MB. Free memory was 101.4 MB in the beginning and 91.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-10-14 05:22:55,540 INFO L168 Benchmark]: Boogie Preprocessor took 150.84 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.2 MB in the beginning and 180.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:22:55,541 INFO L168 Benchmark]: RCFGBuilder took 280.16 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 165.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:22:55,542 INFO L168 Benchmark]: TraceAbstraction took 306.41 ms. Allocated memory is still 202.4 MB. Free memory was 165.9 MB in the beginning and 154.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2020-10-14 05:22:55,546 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 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.42 ms. Allocated memory is still 145.8 MB. Free memory was 101.4 MB in the beginning and 91.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.84 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.2 MB in the beginning and 180.3 MB in the end (delta: -89.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.16 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 165.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 306.41 ms. Allocated memory is still 202.4 MB. Free memory was 165.9 MB in the beginning and 154.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: 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: [L1] int __return_main; [L10] int __return_96; [L13] int main__n; [L14] int main__sum; [L15] int main__i; [L16] main__n = __VERIFIER_nondet_int() [L17] COND FALSE !(!(1 <= main__n)) [L23] COND FALSE !(!(main__n <= 1000)) [L29] main__sum = 0 [L30] main__i = 1 [L31] COND TRUE main__i <= main__n [L33] main__sum = main__sum + main__i [L34] main__i = main__i + 1 [L35] COND TRUE main__i <= main__n [L37] main__sum = main__sum + main__i [L38] main__i = main__i + 1 [L39] COND TRUE main__i <= main__n [L41] main__sum = main__sum + main__i [L42] main__i = main__i + 1 [L43] COND TRUE main__i <= main__n [L45] main__sum = main__sum + main__i [L46] main__i = main__i + 1 [L47] COND TRUE main__i <= main__n [L49] main__sum = main__sum + main__i [L50] main__i = main__i + 1 [L52] COND FALSE !(main__i <= main__n) [L61] int __tmp_1; [L62] __tmp_1 = (2 * main__sum) == (main__n * (main__n + 1)) [L63] int __VERIFIER_assert__cond; [L64] __VERIFIER_assert__cond = __tmp_1 [L65] COND TRUE __VERIFIER_assert__cond == 0 [L67] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 0.2s, 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=21occurred 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...