/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test24-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:49:28,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:49:28,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:49:28,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:49:28,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:49:28,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:49:28,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:49:28,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:49:28,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:49:28,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:49:28,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:49:28,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:49:28,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:49:28,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:49:28,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:49:28,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:49:28,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:49:28,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:49:28,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:49:28,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:49:28,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:49:28,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:49:28,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:49:28,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:49:28,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:49:28,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:49:28,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:49:28,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:49:28,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:49:28,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:49:28,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:49:28,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:49:28,283 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:49:28,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:49:28,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:49:28,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:49:28,286 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:49:28,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:49:28,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:49:28,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:49:28,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:49:28,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:49:28,320 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:49:28,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:49:28,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:49:28,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:49:28,323 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:49:28,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:49:28,324 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:49:28,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:49:28,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:49:28,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:49:28,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:49:28,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:49:28,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:49:28,325 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:49:28,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:49:28,327 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:49:28,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:49:28,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:49:28,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:49:28,328 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:49:28,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:49:28,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:49:28,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:49:28,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:49:28,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:49:28,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:49:28,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:49:28,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:49:28,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:49:28,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:49:28,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:49:28,804 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:49:28,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:49:28,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:49:28,810 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:49:28,812 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test24-1.c [2020-09-25 07:49:28,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8269ff0/9550c9b72181472c979e288623e8317f/FLAGb5b4d5a33 [2020-09-25 07:49:29,405 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:49:29,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test24-1.c [2020-09-25 07:49:29,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8269ff0/9550c9b72181472c979e288623e8317f/FLAGb5b4d5a33 [2020-09-25 07:49:29,749 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ad8269ff0/9550c9b72181472c979e288623e8317f [2020-09-25 07:49:29,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:49:29,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:49:29,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:49:29,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:49:29,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:49:29,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:49:29" (1/1) ... [2020-09-25 07:49:29,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fbfd6df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:29, skipping insertion in model container [2020-09-25 07:49:29,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:49:29" (1/1) ... [2020-09-25 07:49:29,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:49:29,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:49:30,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:49:30,063 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:49:30,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:49:30,099 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:49:30,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30 WrapperNode [2020-09-25 07:49:30,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:49:30,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:49:30,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:49:30,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:49:30,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... [2020-09-25 07:49:30,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:49:30,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:49:30,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:49:30,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:49:30,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:49:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:49:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:49:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-09-25 07:49:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:49:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:49:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:49:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-09-25 07:49:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:49:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:49:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:49:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:49:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:49:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:49:30,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:49:30,665 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:49:30,665 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 07:49:30,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:49:30 BoogieIcfgContainer [2020-09-25 07:49:30,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:49:30,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:49:30,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:49:30,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:49:30,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:49:29" (1/3) ... [2020-09-25 07:49:30,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff6a85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:49:30, skipping insertion in model container [2020-09-25 07:49:30,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:49:30" (2/3) ... [2020-09-25 07:49:30,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff6a85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:49:30, skipping insertion in model container [2020-09-25 07:49:30,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:49:30" (3/3) ... [2020-09-25 07:49:30,681 INFO L109 eAbstractionObserver]: Analyzing ICFG test24-1.c [2020-09-25 07:49:30,694 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:49:30,705 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:49:30,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:49:30,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:49:30,759 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:49:30,759 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:49:30,759 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:49:30,759 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:49:30,759 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:49:30,760 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:49:30,760 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:49:30,782 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-09-25 07:49:30,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 07:49:30,791 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:30,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:49:30,792 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:30,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:30,799 INFO L82 PathProgramCache]: Analyzing trace with hash 606292035, now seen corresponding path program 1 times [2020-09-25 07:49:30,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:30,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049576146] [2020-09-25 07:49:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:30,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:49:31,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 07:49:31,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 07:49:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:49:31,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:31,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:31,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 07:49:31,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:31,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:31,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 07:49:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:31,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:31,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:49:31,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:31,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 07:49:31,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:31,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:31,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:31,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:31,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:31,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:49:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:49:31,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049576146] [2020-09-25 07:49:31,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:31,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 07:49:31,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815742048] [2020-09-25 07:49:31,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 07:49:31,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:31,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 07:49:31,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:49:31,354 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2020-09-25 07:49:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:31,521 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2020-09-25 07:49:31,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 07:49:31,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-09-25 07:49:31,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:31,536 INFO L225 Difference]: With dead ends: 73 [2020-09-25 07:49:31,536 INFO L226 Difference]: Without dead ends: 41 [2020-09-25 07:49:31,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 07:49:31,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-09-25 07:49:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-09-25 07:49:31,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-09-25 07:49:31,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2020-09-25 07:49:31,588 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 34 [2020-09-25 07:49:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:31,589 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2020-09-25 07:49:31,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 07:49:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2020-09-25 07:49:31,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-09-25 07:49:31,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:31,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:49:31,592 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:49:31,592 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:31,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:31,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1986388344, now seen corresponding path program 1 times [2020-09-25 07:49:31,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:31,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358704512] [2020-09-25 07:49:31,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:31,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:32,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 07:49:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 384 [2020-09-25 07:49:32,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:32,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:49:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:49:32,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:49:32,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:49:32,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:32,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:32,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:32,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:32,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:49:32,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:32,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:32,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:32,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-25 07:49:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-09-25 07:49:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:32,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:32,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:49:32,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 07:49:32,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:32,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:32,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:32,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:49:32,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358704512] [2020-09-25 07:49:32,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:49:32,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 07:49:32,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413500935] [2020-09-25 07:49:32,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 07:49:32,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:32,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 07:49:32,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 07:49:32,280 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand 8 states. [2020-09-25 07:49:32,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:32,569 INFO L93 Difference]: Finished difference Result 60 states and 60 transitions. [2020-09-25 07:49:32,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 07:49:32,570 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-09-25 07:49:32,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:32,571 INFO L225 Difference]: With dead ends: 60 [2020-09-25 07:49:32,571 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 07:49:32,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2020-09-25 07:49:32,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 07:49:32,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2020-09-25 07:49:32,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 07:49:32,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2020-09-25 07:49:32,582 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 36 [2020-09-25 07:49:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:32,582 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2020-09-25 07:49:32,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 07:49:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2020-09-25 07:49:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-25 07:49:32,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:32,584 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:49:32,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:49:32,584 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:32,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:32,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1471095088, now seen corresponding path program 1 times [2020-09-25 07:49:32,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:32,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481918615] [2020-09-25 07:49:32,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:32,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:32,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:33,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:33,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 07:49:33,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:49:33,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-09-25 07:49:33,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:33,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:49:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-25 07:49:33,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:49:33,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:49:33,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:33,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:33,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:33,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:33,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:33,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:49:33,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:33,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:33,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:33,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:33,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:33,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-25 07:49:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:33,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:33,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:33,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:49:33,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:33,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 07:49:33,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:33,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-09-25 07:49:33,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:33,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:33,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:49:33,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481918615] [2020-09-25 07:49:33,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:33,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 07:49:33,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323657661] [2020-09-25 07:49:33,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:49:33,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:33,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:49:33,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:49:33,991 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand 9 states. [2020-09-25 07:49:34,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:34,292 INFO L93 Difference]: Finished difference Result 66 states and 66 transitions. [2020-09-25 07:49:34,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:49:34,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 42 [2020-09-25 07:49:34,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:34,294 INFO L225 Difference]: With dead ends: 66 [2020-09-25 07:49:34,294 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 07:49:34,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2020-09-25 07:49:34,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 07:49:34,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 49. [2020-09-25 07:49:34,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-25 07:49:34,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2020-09-25 07:49:34,303 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 42 [2020-09-25 07:49:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:34,303 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2020-09-25 07:49:34,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 07:49:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2020-09-25 07:49:34,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 07:49:34,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:49:34,305 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:49:34,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:49:34,306 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:49:34,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:49:34,306 INFO L82 PathProgramCache]: Analyzing trace with hash -93423064, now seen corresponding path program 2 times [2020-09-25 07:49:34,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:49:34,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958997478] [2020-09-25 07:49:34,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:49:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:34,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:34,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:36,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:36,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 07:49:36,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:49:36,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1861 [2020-09-25 07:49:36,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:36,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 07:49:36,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 07:49:36,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 07:49:36,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:49:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:36,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:36,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:36,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:49:36,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:49:36,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:36,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:49:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:49:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:36,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-25 07:49:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:49:36,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:49:36,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:49:36,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-25 07:49:36,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:49:36,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-25 07:49:36,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:49:36,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:49:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:49:36,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:49:36,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 07:49:36,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:49:36,588 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 07:49:36,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958997478] [2020-09-25 07:49:36,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:49:36,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 07:49:36,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189332472] [2020-09-25 07:49:36,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:49:36,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:49:36,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:49:36,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:49:36,591 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 14 states. [2020-09-25 07:49:37,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:49:37,231 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-09-25 07:49:37,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 07:49:37,231 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2020-09-25 07:49:37,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:49:37,232 INFO L225 Difference]: With dead ends: 49 [2020-09-25 07:49:37,232 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:49:37,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=534, Unknown=0, NotChecked=0, Total=650 [2020-09-25 07:49:37,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:49:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:49:37,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:49:37,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:49:37,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-09-25 07:49:37,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:49:37,235 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:49:37,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:49:37,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:49:37,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:49:37,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:49:37,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:49:37,404 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-25 07:49:37,404 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-25 07:49:37,404 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:49:37,405 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-25 07:49:37,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:49:37,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 07:49:37,405 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 07:49:37,405 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 07:49:37,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 38) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-25 07:49:37,406 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L19-2(line 19) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-09-25 07:49:37,407 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L29-3(line 29) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-25 07:49:37,408 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-25 07:49:37,409 INFO L268 CegarLoopResult]: For program point L21(lines 21 32) no Hoare annotation was computed. [2020-09-25 07:49:37,409 INFO L268 CegarLoopResult]: For program point L21-2(lines 21 32) no Hoare annotation was computed. [2020-09-25 07:49:37,409 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 07:49:37,409 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 07:49:37,409 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 38) no Hoare annotation was computed. [2020-09-25 07:49:37,410 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2020-09-25 07:49:37,410 INFO L264 CegarLoopResult]: At program point L30(lines 15 38) the Hoare annotation is: false [2020-09-25 07:49:37,410 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 14 38) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-25 07:49:37,410 INFO L268 CegarLoopResult]: For program point L26-1(lines 26 28) no Hoare annotation was computed. [2020-09-25 07:49:37,412 INFO L268 CegarLoopResult]: For program point L26-2(line 26) no Hoare annotation was computed. [2020-09-25 07:49:37,414 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 07:49:37,415 INFO L268 CegarLoopResult]: For program point L26-4(line 26) no Hoare annotation was computed. [2020-09-25 07:49:37,417 INFO L264 CegarLoopResult]: At program point L26-5(lines 26 28) the Hoare annotation is: (let ((.cse0 (+ (* 8 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) |main_~#ad1~0.offset|))) (and (<= main_~pa~0.offset .cse0) (= main_~pa~0.base |main_~#ad1~0.base|) (<= .cse0 main_~pa~0.offset) (<= (+ (* 8 main_~i~0) |main_~#ad1~0.offset|) main_~pa~0.offset) (<= |main_~#ad1~0.offset| main_~ad2~0.offset) (= |main_~#ad1~0.base| main_~ad2~0.base) (<= main_~ad2~0.offset |main_~#ad1~0.offset|))) [2020-09-25 07:49:37,417 INFO L264 CegarLoopResult]: At program point L26-6(lines 26 28) the Hoare annotation is: (let ((.cse0 (+ (* 8 (select (select |#memory_int| main_~pa~0.base) main_~pa~0.offset)) |main_~#ad1~0.offset|))) (and (<= main_~pa~0.offset .cse0) (= main_~pa~0.base |main_~#ad1~0.base|) (<= .cse0 main_~pa~0.offset) (= main_~i~0 (select (select |#memory_int| |main_~#ad1~0.base|) (+ (* main_~i~0 8) |main_~#ad1~0.offset|))) (<= (+ (* 8 main_~i~0) |main_~#ad1~0.offset|) main_~pa~0.offset) (<= |main_~#ad1~0.offset| main_~ad2~0.offset) (= |main_~#ad1~0.base| main_~ad2~0.base) (<= main_~ad2~0.offset |main_~#ad1~0.offset|))) [2020-09-25 07:49:37,418 INFO L271 CegarLoopResult]: At program point checkENTRY(lines 9 12) the Hoare annotation is: true [2020-09-25 07:49:37,418 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-25 07:49:37,419 INFO L268 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-09-25 07:49:37,419 INFO L268 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-09-25 07:49:37,419 INFO L268 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-09-25 07:49:37,419 INFO L268 CegarLoopResult]: For program point checkFINAL(lines 9 12) no Hoare annotation was computed. [2020-09-25 07:49:37,419 INFO L268 CegarLoopResult]: For program point checkEXIT(lines 9 12) no Hoare annotation was computed. [2020-09-25 07:49:37,457 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,470 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 07:49:37 BoogieIcfgContainer [2020-09-25 07:49:37,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 07:49:37,484 INFO L168 Benchmark]: Toolchain (without parser) took 7713.49 ms. Allocated memory was 140.5 MB in the beginning and 277.9 MB in the end (delta: 137.4 MB). Free memory was 102.6 MB in the beginning and 238.8 MB in the end (delta: -136.1 MB). Peak memory consumption was 141.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:37,486 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 07:49:37,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.43 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 91.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:37,489 INFO L168 Benchmark]: Boogie Preprocessor took 148.51 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 181.3 MB in the end (delta: -89.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:37,494 INFO L168 Benchmark]: RCFGBuilder took 421.39 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 164.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:37,496 INFO L168 Benchmark]: TraceAbstraction took 6806.55 ms. Allocated memory was 203.9 MB in the beginning and 277.9 MB in the end (delta: 73.9 MB). Free memory was 164.8 MB in the beginning and 238.8 MB in the end (delta: -74.0 MB). Peak memory consumption was 140.2 MB. Max. memory is 7.1 GB. [2020-09-25 07:49:37,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.43 ms. Allocated memory is still 140.5 MB. Free memory was 102.0 MB in the beginning and 91.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.51 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 91.9 MB in the beginning and 181.3 MB in the end (delta: -89.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.39 ms. Allocated memory is still 203.9 MB. Free memory was 181.3 MB in the beginning and 164.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6806.55 ms. Allocated memory was 203.9 MB in the beginning and 277.9 MB in the end (delta: 73.9 MB). Free memory was 164.8 MB in the beginning and 238.8 MB in the end (delta: -74.0 MB). Peak memory consumption was 140.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 36]: 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: 15]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant [2020-09-25 07:49:37,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-09-25 07:49:37,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((((pa <= 8 * unknown-#memory_int-unknown[pa][pa] + ad1 && pa == ad1) && 8 * unknown-#memory_int-unknown[pa][pa] + ad1 <= pa) && 8 * i + ad1 <= pa) && ad1 <= ad2) && ad1 == ad2) && ad2 <= ad1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.4s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 139 SDtfs, 111 SDslu, 358 SDs, 0 SdLazy, 492 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 11 PreInvPairs, 14 NumberOfFragments, 112 HoareAnnotationTreeSize, 11 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 156 ConstructedInterpolants, 0 QuantifiedInterpolants, 38214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/12 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...