/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/const_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:16:57,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:16:57,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:16:57,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:16:57,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:16:57,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:16:57,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:16:57,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:16:57,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:16:57,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:16:57,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:16:57,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:16:57,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:16:57,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:16:57,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:16:57,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:16:57,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:16:57,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:16:57,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:16:57,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:16:57,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:16:57,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:16:57,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:16:57,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:16:57,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:16:57,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:16:57,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:16:57,155 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:16:57,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:16:57,159 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:16:57,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:16:57,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:16:57,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:16:57,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:16:57,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:16:57,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:16:57,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:16:57,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:16:57,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:16:57,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:16:57,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:16:57,181 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 10:16:57,232 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:16:57,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:16:57,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:16:57,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:16:57,235 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:16:57,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:16:57,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:16:57,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:16:57,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:16:57,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:16:57,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:16:57,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:16:57,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:16:57,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:16:57,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:16:57,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:16:57,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:16:57,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:16:57,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:16:57,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:16:57,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:16:57,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:16:57,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:16:57,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:16:57,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:16:57,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:16:57,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:16:57,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:16:57,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:16:57,242 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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;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=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:16:57,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:16:57,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:16:57,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:16:57,779 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:16:57,780 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:16:57,781 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_1-1.c [2020-09-25 10:16:57,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b47222f15/a8d1cb7a6e5b42ec9b4a9e0005667f18/FLAGb8e87bd79 [2020-09-25 10:16:58,372 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:16:58,373 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-acceleration/const_1-1.c [2020-09-25 10:16:58,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b47222f15/a8d1cb7a6e5b42ec9b4a9e0005667f18/FLAGb8e87bd79 [2020-09-25 10:16:58,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b47222f15/a8d1cb7a6e5b42ec9b4a9e0005667f18 [2020-09-25 10:16:58,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:16:58,723 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:16:58,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:16:58,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:16:58,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:16:58,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:16:58" (1/1) ... [2020-09-25 10:16:58,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a5289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:58, skipping insertion in model container [2020-09-25 10:16:58,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:16:58" (1/1) ... [2020-09-25 10:16:58,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:16:58,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:16:58,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:16:58,993 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:16:59,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:16:59,031 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:16:59,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59 WrapperNode [2020-09-25 10:16:59,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:16:59,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:16:59,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:16:59,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:16:59,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (1/1) ... [2020-09-25 10:16:59,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:16:59,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:16:59,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:16:59,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:16:59,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (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 10:16:59,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:16:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:16:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 10:16:59,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:16:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:16:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 10:16:59,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:16:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:16:59,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:16:59,428 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:16:59,429 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:16:59,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:16:59 BoogieIcfgContainer [2020-09-25 10:16:59,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:16:59,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:16:59,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:16:59,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:16:59,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:16:58" (1/3) ... [2020-09-25 10:16:59,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e985b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:16:59, skipping insertion in model container [2020-09-25 10:16:59,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:16:59" (2/3) ... [2020-09-25 10:16:59,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e985b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:16:59, skipping insertion in model container [2020-09-25 10:16:59,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:16:59" (3/3) ... [2020-09-25 10:16:59,446 INFO L109 eAbstractionObserver]: Analyzing ICFG const_1-1.c [2020-09-25 10:16:59,459 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:16:59,469 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:16:59,491 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:16:59,523 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:16:59,524 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:16:59,524 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:16:59,524 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:16:59,524 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:16:59,525 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:16:59,525 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:16:59,525 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:16:59,545 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-09-25 10:16:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 10:16:59,552 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:16:59,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:16:59,553 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:16:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:16:59,560 INFO L82 PathProgramCache]: Analyzing trace with hash 493765703, now seen corresponding path program 1 times [2020-09-25 10:16:59,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:16:59,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [600288984] [2020-09-25 10:16:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:16:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:59,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:59,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:16:59,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 10:16:59,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:16:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 10:16:59,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:16:59,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:16:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:16:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:16:59,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:16:59,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:16:59,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:16:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:16:59,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:16:59,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:16:59,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:16:59,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:16:59,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:16:59,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:16:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:16:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:16:59,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:16:59,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:16:59,785 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 10:16:59,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [600288984] [2020-09-25 10:16:59,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:16:59,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-25 10:16:59,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322332623] [2020-09-25 10:16:59,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-25 10:16:59,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:16:59,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-25 10:16:59,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 10:16:59,820 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-09-25 10:16:59,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:16:59,852 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2020-09-25 10:16:59,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-25 10:16:59,861 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-09-25 10:16:59,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:16:59,883 INFO L225 Difference]: With dead ends: 33 [2020-09-25 10:16:59,883 INFO L226 Difference]: Without dead ends: 16 [2020-09-25 10:16:59,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-25 10:16:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-09-25 10:16:59,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-09-25 10:16:59,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-09-25 10:16:59,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-09-25 10:16:59,944 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2020-09-25 10:16:59,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:16:59,945 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-09-25 10:16:59,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-25 10:16:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-09-25 10:16:59,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-25 10:16:59,946 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:16:59,946 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:16:59,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:16:59,947 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:16:59,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:16:59,948 INFO L82 PathProgramCache]: Analyzing trace with hash 486377535, now seen corresponding path program 1 times [2020-09-25 10:16:59,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:16:59,948 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023658354] [2020-09-25 10:16:59,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:16:59,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:16:59,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:00,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:00,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 10:17:00,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:00,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 10:17:00,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:00,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:17:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 10:17:00,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 10:17:00,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:00,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:00,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:00,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:00,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:00,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:00,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:00,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:17:00,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:00,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:00,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:00,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:00,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:00,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:00,141 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 10:17:00,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023658354] [2020-09-25 10:17:00,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:17:00,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:17:00,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015096299] [2020-09-25 10:17:00,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:17:00,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:00,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:17:00,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:17:00,147 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2020-09-25 10:17:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:00,178 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-09-25 10:17:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:17:00,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-25 10:17:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:00,180 INFO L225 Difference]: With dead ends: 25 [2020-09-25 10:17:00,180 INFO L226 Difference]: Without dead ends: 20 [2020-09-25 10:17:00,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 10:17:00,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-09-25 10:17:00,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-09-25 10:17:00,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-09-25 10:17:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-09-25 10:17:00,188 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2020-09-25 10:17:00,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:00,188 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-09-25 10:17:00,189 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:17:00,189 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-09-25 10:17:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 10:17:00,190 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:17:00,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:17:00,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:17:00,191 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:17:00,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:17:00,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1748013841, now seen corresponding path program 1 times [2020-09-25 10:17:00,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:17:00,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253851568] [2020-09-25 10:17:00,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:17:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:00,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:00,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:00,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:00,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:17:00,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:17:00,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-09-25 10:17:00,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:00,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:17:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-25 10:17:00,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 10:17:00,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:17:00,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:17:00,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:17:00,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:17:00,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:17:00,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:17:00,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:17:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:17:00,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:17:00,870 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:17:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:17:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:17:00,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:17:00,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:17:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:17:00,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253851568] [2020-09-25 10:17:00,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:17:00,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:17:00,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052943009] [2020-09-25 10:17:00,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:17:00,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:17:00,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:17:00,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:17:00,878 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-09-25 10:17:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:17:00,907 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-09-25 10:17:00,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:17:00,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 10:17:00,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:17:00,908 INFO L225 Difference]: With dead ends: 18 [2020-09-25 10:17:00,908 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 10:17:00,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:17:00,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 10:17:00,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 10:17:00,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 10:17:00,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 10:17:00,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-09-25 10:17:00,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:17:00,911 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 10:17:00,911 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:17:00,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 10:17:00,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 10:17:00,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:17:00,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 10:17:00,961 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-25 10:17:00,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 10:17:00,961 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 10:17:00,962 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 10:17:00,962 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 10:17:00,962 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 10:17:00,962 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2020-09-25 10:17:00,962 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2020-09-25 10:17:00,963 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 10:17:00,963 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 10:17:00,963 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 10:17:00,963 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 10:17:00,963 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2020-09-25 10:17:00,964 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-25 10:17:00,964 INFO L264 CegarLoopResult]: At program point L14-2(lines 14 17) the Hoare annotation is: (or (and (<= main_~y~0 0) (<= 0 main_~y~0)) (= main_~x~0 (* 4294967296 (div main_~x~0 4294967296)))) [2020-09-25 10:17:00,964 INFO L264 CegarLoopResult]: At program point L14-3(lines 14 17) the Hoare annotation is: (= main_~x~0 (* 4294967296 (div main_~x~0 4294967296))) [2020-09-25 10:17:00,965 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-09-25 10:17:00,965 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-09-25 10:17:00,965 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-25 10:17:00,965 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-09-25 10:17:00,965 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-09-25 10:17:00,966 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-09-25 10:17:00,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:17:00 BoogieIcfgContainer [2020-09-25 10:17:00,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:17:00,993 INFO L168 Benchmark]: Toolchain (without parser) took 2271.38 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 103.1 MB in the beginning and 100.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:00,994 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 10:17:00,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.82 ms. Allocated memory is still 146.8 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:00,996 INFO L168 Benchmark]: Boogie Preprocessor took 121.77 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 93.2 MB in the beginning and 182.0 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:00,997 INFO L168 Benchmark]: RCFGBuilder took 280.92 ms. Allocated memory is still 202.9 MB. Free memory was 182.0 MB in the beginning and 169.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:00,998 INFO L168 Benchmark]: TraceAbstraction took 1551.58 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 100.5 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. [2020-09-25 10:17:01,002 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 146.8 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 305.82 ms. Allocated memory is still 146.8 MB. Free memory was 102.5 MB in the beginning and 93.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.77 ms. Allocated memory was 146.8 MB in the beginning and 202.9 MB in the end (delta: 56.1 MB). Free memory was 93.2 MB in the beginning and 182.0 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.92 ms. Allocated memory is still 202.9 MB. Free memory was 182.0 MB in the beginning and 169.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1551.58 ms. Allocated memory is still 202.9 MB. Free memory was 169.9 MB in the beginning and 100.5 MB in the end (delta: 69.4 MB). Peak memory consumption was 69.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: (y <= 0 && 0 <= y) || x == 4294967296 * (x / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 5 SDslu, 47 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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...