/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sum_by_3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 05:32:44,370 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 05:32:44,375 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 05:32:44,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 05:32:44,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 05:32:44,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 05:32:44,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 05:32:44,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 05:32:44,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 05:32:44,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 05:32:44,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 05:32:44,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 05:32:44,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 05:32:44,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 05:32:44,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 05:32:44,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 05:32:44,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 05:32:44,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 05:32:44,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 05:32:44,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 05:32:44,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 05:32:44,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 05:32:44,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 05:32:44,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 05:32:44,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 05:32:44,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 05:32:44,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 05:32:44,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 05:32:44,489 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 05:32:44,490 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 05:32:44,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 05:32:44,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 05:32:44,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 05:32:44,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 05:32:44,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 05:32:44,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 05:32:44,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 05:32:44,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 05:32:44,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 05:32:44,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 05:32:44,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 05:32:44,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 05:32:44,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 05:32:44,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 05:32:44,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 05:32:44,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 05:32:44,559 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 05:32:44,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 05:32:44,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 05:32:44,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 05:32:44,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 05:32:44,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 05:32:44,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 05:32:44,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 05:32:44,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 05:32:44,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 05:32:44,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 05:32:44,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 05:32:44,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 05:32:44,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 05:32:44,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 05:32:44,565 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 05:32:44,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 05:32:44,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:32:44,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 05:32:44,566 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 05:32:44,566 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 05:32:44,566 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 05:32:44,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 05:32:44,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 05:32:44,567 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 05:32:44,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 05:32:44,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 05:32:44,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 05:32:44,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 05:32:44,924 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 05:32:44,929 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 05:32:44,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sum_by_3.c [2020-10-14 05:32:44,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9be6baf1/540a31a6de1a4e489a2d409dea98a45e/FLAG72fb36893 [2020-10-14 05:32:45,493 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 05:32:45,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sum_by_3.c [2020-10-14 05:32:45,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9be6baf1/540a31a6de1a4e489a2d409dea98a45e/FLAG72fb36893 [2020-10-14 05:32:45,857 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c9be6baf1/540a31a6de1a4e489a2d409dea98a45e [2020-10-14 05:32:45,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 05:32:45,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 05:32:45,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 05:32:45,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 05:32:45,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 05:32:45,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:32:45" (1/1) ... [2020-10-14 05:32:45,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4649669f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:45, skipping insertion in model container [2020-10-14 05:32:45,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 05:32:45" (1/1) ... [2020-10-14 05:32:45,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 05:32:45,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 05:32:46,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:32:46,085 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 05:32:46,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 05:32:46,115 INFO L208 MainTranslator]: Completed translation [2020-10-14 05:32:46,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46 WrapperNode [2020-10-14 05:32:46,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 05:32:46,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 05:32:46,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 05:32:46,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 05:32:46,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... [2020-10-14 05:32:46,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 05:32:46,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 05:32:46,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 05:32:46,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 05:32:46,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 05:32:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 05:32:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 05:32:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 05:32:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-14 05:32:46,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 05:32:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 05:32:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 05:32:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 05:32:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-14 05:32:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 05:32:46,314 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 05:32:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 05:32:46,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 05:32:46,530 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 05:32:46,531 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-14 05:32:46,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:32:46 BoogieIcfgContainer [2020-10-14 05:32:46,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 05:32:46,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 05:32:46,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 05:32:46,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 05:32:46,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 05:32:45" (1/3) ... [2020-10-14 05:32:46,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43224921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:32:46, skipping insertion in model container [2020-10-14 05:32:46,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 05:32:46" (2/3) ... [2020-10-14 05:32:46,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43224921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 05:32:46, skipping insertion in model container [2020-10-14 05:32:46,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 05:32:46" (3/3) ... [2020-10-14 05:32:46,544 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_by_3.c [2020-10-14 05:32:46,556 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 05:32:46,564 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 05:32:46,579 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 05:32:46,603 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 05:32:46,603 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 05:32:46,603 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 05:32:46,604 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 05:32:46,604 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 05:32:46,604 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 05:32:46,604 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 05:32:46,604 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 05:32:46,621 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-14 05:32:46,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-14 05:32:46,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:32:46,628 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:32:46,628 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:32:46,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:32:46,633 INFO L82 PathProgramCache]: Analyzing trace with hash -41093330, now seen corresponding path program 1 times [2020-10-14 05:32:46,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:32:46,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618063495] [2020-10-14 05:32:46,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:32:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:32:46,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:47,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:32:47,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 05:32:47,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:32:47,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-10-14 05:32:47,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:32:47,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:32:47,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 05:32:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:32:47,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 05:32:47,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 05:32:47,874 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 9 [2020-10-14 05:32:50,275 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 71 DAG size of output: 18 [2020-10-14 05:32:50,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:32:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:32:50,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:50,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:32:50,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:32:50,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:32:50,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 05:32:50,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:32:50,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:32:50,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:32:50,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:32:50,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:32:50,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:32:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:32:50,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618063495] [2020-10-14 05:32:50,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:32:50,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 05:32:50,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006047591] [2020-10-14 05:32:50,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 05:32:50,336 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:32:50,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 05:32:50,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-14 05:32:50,354 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 8 states. [2020-10-14 05:32:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:32:50,669 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2020-10-14 05:32:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 05:32:50,671 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2020-10-14 05:32:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:32:50,682 INFO L225 Difference]: With dead ends: 65 [2020-10-14 05:32:50,682 INFO L226 Difference]: Without dead ends: 28 [2020-10-14 05:32:50,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-10-14 05:32:50,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-14 05:32:50,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2020-10-14 05:32:50,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-14 05:32:50,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2020-10-14 05:32:50,733 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 16 [2020-10-14 05:32:50,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:32:50,733 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2020-10-14 05:32:50,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 05:32:50,734 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2020-10-14 05:32:50,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 05:32:50,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:32:50,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:32:50,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 05:32:50,735 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:32:50,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:32:50,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1238355448, now seen corresponding path program 1 times [2020-10-14 05:32:50,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:32:50,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150604469] [2020-10-14 05:32:50,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:32:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:32:50,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:50,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:50,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:50,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:51,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:51,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:51,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:32:51,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 05:32:51,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 05:32:51,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 618 [2020-10-14 05:32:51,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:32:51,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:32:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 05:32:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:32:51,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 05:32:51,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:32:51,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:32:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:32:51,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:51,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:32:51,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:32:51,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:32:51,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:32:51,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:32:51,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:32:51,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:32:51,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:32:51,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:32:51,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:32:51,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:32:51,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150604469] [2020-10-14 05:32:51,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:32:51,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 05:32:51,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648529908] [2020-10-14 05:32:51,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 05:32:51,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:32:51,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 05:32:51,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-14 05:32:51,444 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 5 states. [2020-10-14 05:32:51,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:32:51,544 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-10-14 05:32:51,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 05:32:51,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-14 05:32:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:32:51,546 INFO L225 Difference]: With dead ends: 30 [2020-10-14 05:32:51,546 INFO L226 Difference]: Without dead ends: 18 [2020-10-14 05:32:51,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 05:32:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-14 05:32:51,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-14 05:32:51,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-14 05:32:51,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-10-14 05:32:51,553 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 17 [2020-10-14 05:32:51,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:32:51,553 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-10-14 05:32:51,553 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 05:32:51,554 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-10-14 05:32:51,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 05:32:51,554 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:32:51,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:32:51,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 05:32:51,555 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:32:51,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:32:51,556 INFO L82 PathProgramCache]: Analyzing trace with hash 20922122, now seen corresponding path program 1 times [2020-10-14 05:32:51,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:32:51,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001712781] [2020-10-14 05:32:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:32:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:32:51,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:51,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:32:51,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 05:32:51,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:32:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-14 05:32:51,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:32:51,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:32:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:32:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:32:51,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 05:32:51,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:32:53,237 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2020-10-14 05:32:53,467 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 27 [2020-10-14 05:32:53,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:32:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:32:53,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:32:53,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:32:53,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:32:53,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:32:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 05:32:53,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:32:53,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:32:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:32:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:32:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:32:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:32:53,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 05:32:53,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001712781] [2020-10-14 05:32:53,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:32:53,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:32:53,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101908600] [2020-10-14 05:32:53,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:32:53,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:32:53,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:32:53,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:32:53,574 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 9 states. [2020-10-14 05:33:02,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:33:02,550 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-10-14 05:33:02,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 05:33:02,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2020-10-14 05:33:02,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:33:02,551 INFO L225 Difference]: With dead ends: 34 [2020-10-14 05:33:02,552 INFO L226 Difference]: Without dead ends: 29 [2020-10-14 05:33:02,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2020-10-14 05:33:02,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-14 05:33:02,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-10-14 05:33:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-14 05:33:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-14 05:33:02,561 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 17 [2020-10-14 05:33:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:33:02,561 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-14 05:33:02,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:33:02,562 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-14 05:33:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 05:33:02,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:33:02,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:33:02,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 05:33:02,563 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:33:02,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:33:02,564 INFO L82 PathProgramCache]: Analyzing trace with hash 684123564, now seen corresponding path program 1 times [2020-10-14 05:33:02,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:33:02,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774936459] [2020-10-14 05:33:02,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:33:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:02,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:02,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:02,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:02,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:03,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:03,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:03,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 05:33:03,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 05:33:03,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-10-14 05:33:03,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:03,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 05:33:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 05:33:03,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 05:33:03,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:03,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:33:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:03,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:03,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:03,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:33:03,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:03,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 05:33:03,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:03,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:33:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:33:03,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:33:03,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774936459] [2020-10-14 05:33:03,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 05:33:03,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 05:33:03,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739923776] [2020-10-14 05:33:03,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 05:33:03,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:33:03,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 05:33:03,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-14 05:33:03,328 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 6 states. [2020-10-14 05:33:03,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:33:03,491 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-10-14 05:33:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 05:33:03,492 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-10-14 05:33:03,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:33:03,493 INFO L225 Difference]: With dead ends: 31 [2020-10-14 05:33:03,493 INFO L226 Difference]: Without dead ends: 19 [2020-10-14 05:33:03,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:33:03,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-14 05:33:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-14 05:33:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-14 05:33:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-14 05:33:03,500 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 18 [2020-10-14 05:33:03,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:33:03,501 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-14 05:33:03,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 05:33:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-14 05:33:03,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-14 05:33:03,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 05:33:03,502 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 05:33:03,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 05:33:03,503 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 05:33:03,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 05:33:03,503 INFO L82 PathProgramCache]: Analyzing trace with hash 1943401134, now seen corresponding path program 2 times [2020-10-14 05:33:03,503 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 05:33:03,504 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1983757033] [2020-10-14 05:33:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 05:33:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:03,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:03,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:03,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-14 05:33:03,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:03,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-14 05:33:03,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:03,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:03,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 05:33:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 05:33:03,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 05:33:03,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 05:33:14,186 WARN L193 SmtUtils]: Spent 8.66 s on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2020-10-14 05:33:14,541 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 43 [2020-10-14 05:33:14,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 05:33:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 05:33:14,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 05:33:14,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 05:33:14,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 05:33:14,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 05:33:14,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 05:33:14,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 05:33:14,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 05:33:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 05:33:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 05:33:14,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 05:33:14,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 05:33:14,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 05:33:14,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1983757033] [2020-10-14 05:33:14,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 05:33:14,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-14 05:33:14,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067396181] [2020-10-14 05:33:14,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-14 05:33:14,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 05:33:14,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-14 05:33:14,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-14 05:33:14,625 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 9 states. [2020-10-14 05:33:23,056 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (div c_~SIZE~0 4294967296)) (.cse3 (div c_main_~i~0 4294967296))) (let ((.cse0 (* 4294967296 .cse3)) (.cse2 (* 3 c_main_~i~0)) (.cse4 (* 12884901888 .cse7)) (.cse5 (* 3 c_~SIZE~0))) (and (let ((.cse1 (+ .cse0 2147483647))) (or (and (= (+ c_main_~j~0 .cse0) c_main_~i~0) (<= c_main_~i~0 .cse1)) (and (< .cse1 c_main_~i~0) (= c_main_~i~0 (+ c_main_~j~0 .cse0 4294967296))))) (= c_~SIZE~0 |c_old(~SIZE~0)|) (<= (+ .cse2 (* 4294967296 (div (+ (* c_main_~i~0 (- 3)) (* .cse3 4294967296) 4294967297) 4294967296)) .cse4) (+ .cse0 .cse5)) (<= (+ .cse2 (* 4294967296 (div (let ((.cse6 (* c_main_~i~0 (- 1)))) (+ .cse6 (* (div (+ .cse6 2147483648) 2147483648) 4294967296) 4294967296)) 4294967296)) .cse4) .cse5) (<= (+ c_main_~n~0 (* 4294967296 .cse7)) (+ (* 4294967296 (div c_main_~n~0 4294967296)) c_~SIZE~0))))) is different from false [2020-10-14 05:33:37,722 WARN L193 SmtUtils]: Spent 14.55 s on a formula simplification that was a NOOP. DAG size: 55 [2020-10-14 05:33:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 05:33:39,856 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-10-14 05:33:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 05:33:39,856 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-10-14 05:33:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 05:33:39,857 INFO L225 Difference]: With dead ends: 19 [2020-10-14 05:33:39,857 INFO L226 Difference]: Without dead ends: 0 [2020-10-14 05:33:39,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 31.7s TimeCoverageRelationStatistics Valid=42, Invalid=142, Unknown=2, NotChecked=24, Total=210 [2020-10-14 05:33:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-14 05:33:39,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-14 05:33:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-14 05:33:39,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-14 05:33:39,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-14 05:33:39,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 05:33:39,859 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-14 05:33:39,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-14 05:33:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-14 05:33:39,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-14 05:33:39,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 05:33:39,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-14 05:34:30,549 WARN L193 SmtUtils]: Spent 50.44 s on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2020-10-14 05:35:00,227 WARN L193 SmtUtils]: Spent 29.66 s on a formula simplification. DAG size of input: 131 DAG size of output: 86 [2020-10-14 05:35:12,743 WARN L193 SmtUtils]: Spent 12.51 s on a formula simplification. DAG size of input: 103 DAG size of output: 59 [2020-10-14 05:35:12,746 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:35:12,747 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-10-14 05:35:12,747 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:35:12,747 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-14 05:35:12,747 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-14 05:35:12,747 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-14 05:35:12,747 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-14 05:35:12,747 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:35:12,747 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-14 05:35:12,747 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:35:12,748 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-14 05:35:12,748 INFO L264 CegarLoopResult]: At program point L27-2(lines 27 29) the Hoare annotation is: (let ((.cse3 (div main_~i~0 4294967296))) (let ((.cse1 (* 3 main_~i~0)) (.cse0 (* .cse3 4294967296)) (.cse2 (* 4294967296 (div main_~n~0 4294967296)))) (or (and (= main_~k~0 main_~j~0) (= main_~i~0 (+ main_~k~0 .cse0)) (<= .cse1 0) (<= main_~n~0 .cse2) (< 0 (+ .cse3 1))) (let ((.cse12 (* 4294967296 .cse3))) (let ((.cse11 (* 12884901888 (div ~SIZE~0 4294967296))) (.cse8 (* 3 ~SIZE~0)) (.cse9 (< (+ .cse12 2147483647) main_~i~0))) (and (or (and (<= main_~n~0 (+ .cse2 main_~j~0)) (<= main_~j~0 2147483647)) (and (<= main_~n~0 (+ .cse2 main_~j~0 4294967296)) (<= (+ main_~j~0 1) 0))) (let ((.cse10 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296))) (let ((.cse4 (+ .cse1 main_~k~0 .cse11)) (.cse5 (* 12884901888 (div (div (+ main_~i~0 main_~j~0 main_~k~0 (* .cse10 (- 4294967296))) 3) 4294967296))) (.cse6 (* 8589934592 .cse3)) (.cse7 (* 4294967296 .cse10))) (or (<= .cse4 (+ main_~j~0 .cse5 .cse6 .cse7 .cse8)) (and .cse9 (<= .cse4 (+ main_~j~0 .cse5 .cse6 .cse7 .cse8 8589934592)))))) (<= (+ .cse1 (* 4294967296 (div (+ (* main_~i~0 (- 3)) .cse0 4294967297) 4294967296)) .cse11) (+ .cse12 .cse8)) (or (and .cse9 (= main_~i~0 (+ main_~j~0 .cse0 4294967296))) (= (+ main_~j~0 .cse0) main_~i~0)) (or (and (<= main_~n~0 (+ .cse2 main_~k~0 4294967296)) (<= (+ main_~k~0 1) 0)) (and (<= (div main_~k~0 4294967296) 0) (<= main_~n~0 (+ .cse2 main_~k~0)))))))))) [2020-10-14 05:35:12,748 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 32) no Hoare annotation was computed. [2020-10-14 05:35:12,749 INFO L264 CegarLoopResult]: At program point L27-3(lines 27 29) the Hoare annotation is: (let ((.cse11 (div (+ main_~i~0 main_~j~0 main_~k~0) 4294967296))) (let ((.cse15 (div (+ main_~i~0 main_~j~0 main_~k~0 (* .cse11 (- 4294967296))) 3)) (.cse2 (div main_~i~0 4294967296))) (let ((.cse1 (* 3 main_~i~0)) (.cse0 (* .cse2 4294967296)) (.cse12 (div .cse15 4294967296)) (.cse7 (* 8589934592 .cse2)) (.cse13 (div ~SIZE~0 4294967296))) (or (and (= main_~k~0 main_~j~0) (= main_~i~0 (+ main_~k~0 .cse0)) (<= .cse1 0) (< 0 (+ .cse2 1))) (let ((.cse3 (* 4294967296 .cse2))) (let ((.cse10 (< (+ .cse3 2147483647) main_~i~0)) (.cse4 (* 4294967296 (div main_~n~0 4294967296)))) (and (<= (+ .cse3 main_~n~0) (+ .cse4 main_~i~0)) (let ((.cse5 (+ .cse1 main_~k~0 (* 12884901888 .cse13))) (.cse6 (* 12884901888 .cse12)) (.cse8 (* 4294967296 .cse11)) (.cse9 (* 3 ~SIZE~0))) (or (<= .cse5 (+ main_~j~0 .cse6 .cse7 .cse8 .cse9)) (and .cse10 (<= .cse5 (+ main_~j~0 .cse6 .cse7 .cse8 .cse9 8589934592))))) (or (and .cse10 (= main_~i~0 (+ main_~j~0 .cse0 4294967296))) (= (+ main_~j~0 .cse0) main_~i~0)) (<= main_~j~0 2147483647) (or (and (<= main_~n~0 (+ .cse4 main_~k~0 4294967296)) (<= (+ main_~k~0 1) 0)) (and (<= (div main_~k~0 4294967296) 0) (<= main_~n~0 (+ .cse4 main_~k~0))))))) (let ((.cse16 (* 1431655766 main_~j~0)) (.cse17 (* 6148914694099828736 .cse2)) (.cse14 (* 4294967296 .cse13)) (.cse18 (* 1431655765 main_~i~0))) (and (<= (+ (* 2863311531 main_~i~0) (* 2863311531 main_~j~0) (* 2863311531 main_~k~0) .cse14) (+ (* 4294967296 .cse12) (* 8589934592 .cse15) (* 12297829383904690176 .cse11) ~SIZE~0)) (<= (+ .cse16 .cse17) (+ .cse18 1)) (<= 3 (+ main_~i~0 (* 2 main_~j~0) .cse7)) (<= (+ .cse16 .cse17 (* 4294967296 (div (+ (* main_~i~0 4294967296) (* main_~j~0 (- 4294967297)) (* .cse2 (- 18446744078004518912)) 4294967296) 4294967296)) .cse14) (+ .cse18 ~SIZE~0)) (<= main_~i~0 1))))))) [2020-10-14 05:35:12,749 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 25) the Hoare annotation is: (let ((.cse3 (div main_~i~0 4294967296))) (let ((.cse4 (* .cse3 4294967296))) (let ((.cse0 (= (+ main_~j~0 .cse4) main_~i~0)) (.cse1 (* 3 main_~i~0)) (.cse2 (* 4294967296 (div main_~n~0 4294967296)))) (or (and .cse0 (<= .cse1 0) (<= main_~n~0 .cse2) (< 0 (+ .cse3 1))) (let ((.cse6 (div ~SIZE~0 4294967296))) (and (or (and (<= main_~n~0 (+ .cse2 main_~j~0)) (<= main_~j~0 2147483647)) (and (<= main_~n~0 (+ .cse2 main_~j~0 4294967296)) (<= (+ main_~j~0 1) 0))) (or (and (< (+ (* 4294967296 .cse3) 2147483647) main_~i~0) (= main_~i~0 (+ main_~j~0 .cse4 4294967296))) .cse0) (<= (+ .cse1 (* 4294967296 (div (let ((.cse5 (* main_~i~0 (- 1)))) (+ .cse5 (* (div (+ .cse5 2147483648) 2147483648) 4294967296) 4294967296)) 4294967296)) (* 12884901888 .cse6)) (* 3 ~SIZE~0)) (<= (+ main_~n~0 (* 4294967296 .cse6)) (+ .cse2 ~SIZE~0)))))))) [2020-10-14 05:35:12,750 INFO L268 CegarLoopResult]: For program point L23-3(lines 23 25) no Hoare annotation was computed. [2020-10-14 05:35:12,750 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-14 05:35:12,750 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 21) the Hoare annotation is: (let ((.cse1 (div ~SIZE~0 4294967296))) (let ((.cse2 (<= (+ main_~n~0 (* 4294967296 .cse1)) (+ (* 4294967296 (div main_~n~0 4294967296)) ~SIZE~0)))) (or (and (<= (+ (* 3 main_~i~0) (* 4294967296 (div (let ((.cse0 (* main_~i~0 (- 1)))) (+ .cse0 (* (div (+ .cse0 2147483648) 2147483648) 4294967296) 4294967296)) 4294967296)) (* 12884901888 .cse1)) (* 3 ~SIZE~0)) .cse2) (and (<= main_~i~0 0) .cse2 (< 0 (+ (div main_~i~0 4294967296) 1)))))) [2020-10-14 05:35:12,750 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2020-10-14 05:35:12,750 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 32) no Hoare annotation was computed. [2020-10-14 05:35:12,750 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-14 05:35:12,751 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 32) the Hoare annotation is: true [2020-10-14 05:35:12,751 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-14 05:35:12,751 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-14 05:35:12,751 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-14 05:35:12,751 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-14 05:35:12,751 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-14 05:35:12,751 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-14 05:35:12,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 05:35:12 BoogieIcfgContainer [2020-10-14 05:35:12,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 05:35:12,783 INFO L168 Benchmark]: Toolchain (without parser) took 146912.52 ms. Allocated memory was 147.8 MB in the beginning and 289.9 MB in the end (delta: 142.1 MB). Free memory was 104.0 MB in the beginning and 128.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 118.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:35:12,784 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 05:35:12,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.63 ms. Allocated memory is still 147.8 MB. Free memory was 103.6 MB in the beginning and 94.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:35:12,785 INFO L168 Benchmark]: Boogie Preprocessor took 139.28 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 94.2 MB in the beginning and 182.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-14 05:35:12,786 INFO L168 Benchmark]: RCFGBuilder took 278.20 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 169.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-10-14 05:35:12,787 INFO L168 Benchmark]: TraceAbstraction took 146244.95 ms. Allocated memory was 203.9 MB in the beginning and 289.9 MB in the end (delta: 86.0 MB). Free memory was 168.1 MB in the beginning and 128.0 MB in the end (delta: 40.1 MB). Peak memory consumption was 126.1 MB. Max. memory is 7.1 GB. [2020-10-14 05:35:12,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.63 ms. Allocated memory is still 147.8 MB. Free memory was 103.6 MB in the beginning and 94.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.28 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 94.2 MB in the beginning and 182.4 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 278.20 ms. Allocated memory is still 203.9 MB. Free memory was 182.4 MB in the beginning and 169.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 146244.95 ms. Allocated memory was 203.9 MB in the beginning and 289.9 MB in the end (delta: 86.0 MB). Free memory was 168.1 MB in the beginning and 128.0 MB in the end (delta: 40.1 MB). Peak memory consumption was 126.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 19]: Loop Invariant Derived loop invariant: (3 * i + 4294967296 * ((i * -1 + (i * -1 + 2147483648) / 2147483648 * 4294967296 + 4294967296) / 4294967296) + 12884901888 * (SIZE / 4294967296) <= 3 * SIZE && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) || ((i <= 0 && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) && 0 < i / 4294967296 + 1) - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((k == j && i == k + i / 4294967296 * 4294967296) && 3 * i <= 0) && n <= 4294967296 * (n / 4294967296)) && 0 < i / 4294967296 + 1) || ((((((n <= 4294967296 * (n / 4294967296) + j && j <= 2147483647) || (n <= 4294967296 * (n / 4294967296) + j + 4294967296 && j + 1 <= 0)) && (3 * i + k + 12884901888 * (SIZE / 4294967296) <= j + 12884901888 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 8589934592 * (i / 4294967296) + 4294967296 * ((i + j + k) / 4294967296) + 3 * SIZE || (4294967296 * (i / 4294967296) + 2147483647 < i && 3 * i + k + 12884901888 * (SIZE / 4294967296) <= j + 12884901888 * ((i + j + k + (i + j + k) / 4294967296 * -4294967296) / 3 / 4294967296) + 8589934592 * (i / 4294967296) + 4294967296 * ((i + j + k) / 4294967296) + 3 * SIZE + 8589934592))) && 3 * i + 4294967296 * ((i * -3 + i / 4294967296 * 4294967296 + 4294967297) / 4294967296) + 12884901888 * (SIZE / 4294967296) <= 4294967296 * (i / 4294967296) + 3 * SIZE) && ((4294967296 * (i / 4294967296) + 2147483647 < i && i == j + i / 4294967296 * 4294967296 + 4294967296) || j + i / 4294967296 * 4294967296 == i)) && ((n <= 4294967296 * (n / 4294967296) + k + 4294967296 && k + 1 <= 0) || (k / 4294967296 <= 0 && n <= 4294967296 * (n / 4294967296) + k))) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((j + i / 4294967296 * 4294967296 == i && 3 * i <= 0) && n <= 4294967296 * (n / 4294967296)) && 0 < i / 4294967296 + 1) || (((((n <= 4294967296 * (n / 4294967296) + j && j <= 2147483647) || (n <= 4294967296 * (n / 4294967296) + j + 4294967296 && j + 1 <= 0)) && ((4294967296 * (i / 4294967296) + 2147483647 < i && i == j + i / 4294967296 * 4294967296 + 4294967296) || j + i / 4294967296 * 4294967296 == i)) && 3 * i + 4294967296 * ((i * -1 + (i * -1 + 2147483648) / 2147483648 * 4294967296 + 4294967296) / 4294967296) + 12884901888 * (SIZE / 4294967296) <= 3 * SIZE) && n + 4294967296 * (SIZE / 4294967296) <= 4294967296 * (n / 4294967296) + SIZE) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 53.2s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 92.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 SDtfs, 160 SDslu, 121 SDs, 0 SdLazy, 309 SolverSat, 42 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 36.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 25 NumberOfFragments, 824 HoareAnnotationTreeSize, 14 FomulaSimplifications, 728 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 506 FormulaSimplificationTreeSizeReductionInter, 92.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 17.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 19662 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 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...