/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=NARROWEST --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/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 10:30:33,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 10:30:33,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 10:30:33,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 10:30:33,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 10:30:33,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 10:30:33,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 10:30:33,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 10:30:33,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 10:30:33,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 10:30:33,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 10:30:33,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 10:30:33,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 10:30:33,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 10:30:33,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 10:30:33,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 10:30:33,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 10:30:33,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 10:30:33,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 10:30:33,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 10:30:33,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 10:30:33,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 10:30:33,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 10:30:33,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 10:30:33,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 10:30:33,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 10:30:33,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 10:30:33,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 10:30:33,507 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 10:30:33,508 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 10:30:33,508 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 10:30:33,509 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 10:30:33,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 10:30:33,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 10:30:33,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 10:30:33,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 10:30:33,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 10:30:33,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 10:30:33,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 10:30:33,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 10:30:33,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 10:30:33,514 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 [2020-10-13 10:30:33,549 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 10:30:33,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 10:30:33,551 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 10:30:33,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 10:30:33,554 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 10:30:33,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 10:30:33,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 10:30:33,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 10:30:33,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 10:30:33,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 10:30:33,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 10:30:33,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 10:30:33,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 10:30:33,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 10:30:33,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 10:30:33,556 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 10:30:33,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 10:30:33,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 10:30:33,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 10:30:33,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 10:30:33,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 10:30:33,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 10:30:33,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 10:30:33,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 10:30:33,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 10:30:33,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 10:30:33,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 10:30:33,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 10:30:33,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 10:30:33,562 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 10:30:33,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 10:30:33,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 10:30:33,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 10:30:33,903 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 10:30:33,904 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 10:30:33,904 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test30-1.c [2020-10-13 10:30:33,976 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/523788b77/37a0d05bc85d4aadad5be3b43e42a5af/FLAG900db4861 [2020-10-13 10:30:34,469 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 10:30:34,470 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test30-1.c [2020-10-13 10:30:34,476 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/523788b77/37a0d05bc85d4aadad5be3b43e42a5af/FLAG900db4861 [2020-10-13 10:30:34,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/523788b77/37a0d05bc85d4aadad5be3b43e42a5af [2020-10-13 10:30:34,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 10:30:34,898 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 10:30:34,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 10:30:34,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 10:30:34,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 10:30:34,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:34" (1/1) ... [2020-10-13 10:30:34,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b86a7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:34, skipping insertion in model container [2020-10-13 10:30:34,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:34" (1/1) ... [2020-10-13 10:30:34,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 10:30:34,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 10:30:35,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:30:35,144 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 10:30:35,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 10:30:35,178 INFO L208 MainTranslator]: Completed translation [2020-10-13 10:30:35,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35 WrapperNode [2020-10-13 10:30:35,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 10:30:35,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 10:30:35,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 10:30:35,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 10:30:35,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (1/1) ... [2020-10-13 10:30:35,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 10:30:35,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 10:30:35,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 10:30:35,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 10:30:35,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (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 [2020-10-13 10:30:35,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 10:30:35,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 10:30:35,371 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2020-10-13 10:30:35,372 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2020-10-13 10:30:35,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 10:30:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 10:30:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2020-10-13 10:30:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 10:30:35,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 10:30:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2020-10-13 10:30:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 10:30:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 10:30:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 10:30:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 10:30:35,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 10:30:35,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 10:30:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 10:30:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 10:30:35,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 10:30:35,611 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 10:30:35,611 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 10:30:35,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:35 BoogieIcfgContainer [2020-10-13 10:30:35,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 10:30:35,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 10:30:35,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 10:30:35,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 10:30:35,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:30:34" (1/3) ... [2020-10-13 10:30:35,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39db3936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:35, skipping insertion in model container [2020-10-13 10:30:35,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:35" (2/3) ... [2020-10-13 10:30:35,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39db3936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:35, skipping insertion in model container [2020-10-13 10:30:35,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:35" (3/3) ... [2020-10-13 10:30:35,627 INFO L109 eAbstractionObserver]: Analyzing ICFG test30-1.c [2020-10-13 10:30:35,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 10:30:35,645 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 10:30:35,659 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 10:30:35,683 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 10:30:35,683 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 10:30:35,683 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 10:30:35,683 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 10:30:35,684 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 10:30:35,684 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 10:30:35,684 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 10:30:35,684 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 10:30:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-13 10:30:35,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-13 10:30:35,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 10:30:35,707 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 10:30:35,707 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 10:30:35,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 10:30:35,713 INFO L82 PathProgramCache]: Analyzing trace with hash -457594768, now seen corresponding path program 1 times [2020-10-13 10:30:35,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 10:30:35,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103210395] [2020-10-13 10:30:35,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 10:30:35,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:36,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:36,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 10:30:36,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 555 [2020-10-13 10:30:36,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 10:30:36,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 10:30:36,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 10:30:36,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 10:30:36,622 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-10-13 10:30:36,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 10:30:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:36,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:36,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:36,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:30:36,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:36,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 10:30:36,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:36,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 10:30:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:36,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 10:30:36,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:30:36,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 10:30:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:36,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:36,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:36,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 10:30:36,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:36,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 10:30:36,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:36,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 10:30:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 10:30:36,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 10:30:36,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 10:30:36,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 10:30:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 10:30:36,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 10:30:37,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 10:30:37,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 10:30:37,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 10:30:37,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 10:30:37,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 10:30:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 10:30:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 10:30:37,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 10:30:37,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 10:30:37,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 10:30:37,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103210395] [2020-10-13 10:30:37,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 10:30:37,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-13 10:30:37,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356792132] [2020-10-13 10:30:37,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 10:30:37,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 10:30:37,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 10:30:37,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-13 10:30:37,069 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 11 states. [2020-10-13 10:30:37,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 10:30:37,811 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2020-10-13 10:30:37,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 10:30:37,813 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2020-10-13 10:30:37,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 10:30:37,821 INFO L225 Difference]: With dead ends: 27 [2020-10-13 10:30:37,821 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 10:30:37,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2020-10-13 10:30:37,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 10:30:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 10:30:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 10:30:37,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 10:30:37,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-13 10:30:37,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 10:30:37,855 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 10:30:37,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 10:30:37,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 10:30:37,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 10:30:37,856 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 10:30:37,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 10:30:38,364 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:30:38,365 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |~#global~0.base| |old(~#global~0.base)|) (= |old(~#a~0.offset)| |~#a~0.offset|) (= |old(#length)| |#length|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |old(~#a~0.base)| |~#a~0.base|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-10-13 10:30:38,365 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:30:38,365 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 10:30:38,366 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4)) (.cse1 (select |#memory_$Pointer$.base| |~#global~0.base|))) (and (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|) (= |~#b~0.base| (select .cse1 .cse2)) (= (select .cse0 .cse2) |~#b~0.offset|) (= (select .cse1 |~#global~0.offset|) |~#a~0.base|) (not (= |~#b~0.base| |~#a~0.base|)))) [2020-10-13 10:30:38,366 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 10:30:38,366 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 10:30:38,366 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2020-10-13 10:30:38,367 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 33) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-13 10:30:38,367 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 19 33) no Hoare annotation was computed. [2020-10-13 10:30:38,367 INFO L264 CegarLoopResult]: At program point L26(lines 20 33) the Hoare annotation is: (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= |~#a~0.base| (select .cse0 |~#global~0.offset|))) (not (= |~#a~0.offset| (select .cse1 |~#global~0.offset|))) (not (= (select .cse1 .cse2) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select .cse0 .cse2) |~#b~0.base|)))) [2020-10-13 10:30:38,367 INFO L268 CegarLoopResult]: For program point L25(lines 25 27) no Hoare annotation was computed. [2020-10-13 10:30:38,367 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 19 33) no Hoare annotation was computed. [2020-10-13 10:30:38,368 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))) (let ((.cse4 (+ main_~pd~0.offset 4)) (.cse3 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse5 (select |#memory_$Pointer$.base| main_~pd~0.base))) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select .cse3 .cse4) |~#b~0.offset|) (= |~#b~0.base| (select .cse5 .cse4)) (= |#memory_int| |old(#memory_int)|) (= (select .cse3 main_~pd~0.offset) |~#a~0.offset|) (= |~#a~0.base| (select .cse5 main_~pd~0.offset)) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|))))) [2020-10-13 10:30:38,368 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-13 10:30:38,368 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (and (= |assign2_#t~mem1.base| (select (select |old(#memory_$Pointer$.base)| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select (select |old(#memory_$Pointer$.offset)| |assign2_#in~pb.base|) |assign2_#in~pb.offset|) |assign2_#t~mem2.offset|) (= |assign2_#t~mem1.offset| (select (select |old(#memory_$Pointer$.offset)| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= (select (select |old(#memory_$Pointer$.base)| |assign2_#in~pb.base|) |assign2_#in~pb.offset|) |assign2_#t~mem2.base|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-13 10:30:38,368 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-10-13 10:30:38,368 INFO L268 CegarLoopResult]: For program point assign2FINAL(lines 14 17) no Hoare annotation was computed. [2020-10-13 10:30:38,369 INFO L264 CegarLoopResult]: At program point assign2ENTRY(lines 14 17) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-13 10:30:38,369 INFO L268 CegarLoopResult]: For program point assign2EXIT(lines 14 17) no Hoare annotation was computed. [2020-10-13 10:30:38,369 INFO L268 CegarLoopResult]: For program point assignEXIT(lines 9 12) no Hoare annotation was computed. [2020-10-13 10:30:38,369 INFO L264 CegarLoopResult]: At program point assignENTRY(lines 9 12) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|)) (.cse2 (+ |~#global~0.offset| 4))) (or (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (and (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|)) (not (= (select .cse1 |~#global~0.offset|) |~#a~0.base|)) (not (= (select .cse0 .cse2) |~#b~0.offset|)) (= |~#b~0.base| |~#a~0.base|) (not (= |~#b~0.base| (select .cse1 .cse2))))) [2020-10-13 10:30:38,369 INFO L268 CegarLoopResult]: For program point assignFINAL(lines 9 12) no Hoare annotation was computed. [2020-10-13 10:30:38,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,385 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,386 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,388 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,389 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,392 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,393 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,394 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:30:38 BoogieIcfgContainer [2020-10-13 10:30:38,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 10:30:38,399 INFO L168 Benchmark]: Toolchain (without parser) took 3501.65 ms. Allocated memory was 139.5 MB in the beginning and 246.4 MB in the end (delta: 107.0 MB). Free memory was 102.3 MB in the beginning and 125.0 MB in the end (delta: -22.7 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-10-13 10:30:38,400 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 10:30:38,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.59 ms. Allocated memory is still 139.5 MB. Free memory was 102.1 MB in the beginning and 92.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:30:38,403 INFO L168 Benchmark]: Boogie Preprocessor took 131.47 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 92.0 MB in the beginning and 178.6 MB in the end (delta: -86.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-10-13 10:30:38,404 INFO L168 Benchmark]: RCFGBuilder took 303.86 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 162.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2020-10-13 10:30:38,405 INFO L168 Benchmark]: TraceAbstraction took 2777.54 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 162.0 MB in the beginning and 125.0 MB in the end (delta: 37.0 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2020-10-13 10:30:38,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.59 ms. Allocated memory is still 139.5 MB. Free memory was 102.1 MB in the beginning and 92.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.47 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 92.0 MB in the beginning and 178.6 MB in the end (delta: -86.6 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 303.86 ms. Allocated memory is still 201.3 MB. Free memory was 178.6 MB in the beginning and 162.0 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2777.54 ms. Allocated memory was 201.3 MB in the beginning and 246.4 MB in the end (delta: 45.1 MB). Free memory was 162.0 MB in the beginning and 125.0 MB in the end (delta: 37.0 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant [2020-10-13 10:30:38,420 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,420 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,421 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,421 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,422 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,422 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-10-13 10:30:38,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-10-13 10:30:38,424 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,424 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,424 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2020-10-13 10:30:38,424 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((!(a == \old(#memory_$Pointer$)[global][global]) || !(a == \old(#memory_$Pointer$)[global][global])) || !(\old(#memory_$Pointer$)[global][global + 4] == b)) || a == b) || !(\old(#memory_$Pointer$)[global][global + 4] == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 15 SDslu, 19 SDs, 0 SdLazy, 124 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 419 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 339 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 7259 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...