/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=BIGGEST --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/sumt2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 16:19:45,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 16:19:45,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 16:19:45,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 16:19:45,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 16:19:45,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 16:19:45,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 16:19:45,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 16:19:45,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 16:19:45,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 16:19:45,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 16:19:45,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 16:19:45,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 16:19:45,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 16:19:45,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 16:19:45,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 16:19:45,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 16:19:45,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 16:19:45,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 16:19:45,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 16:19:45,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 16:19:45,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 16:19:45,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 16:19:45,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 16:19:45,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 16:19:45,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 16:19:45,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 16:19:45,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 16:19:45,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 16:19:45,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 16:19:45,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 16:19:45,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 16:19:45,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 16:19:45,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 16:19:45,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 16:19:45,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 16:19:45,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 16:19:45,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 16:19:45,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 16:19:45,409 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 16:19:45,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 16:19:45,412 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 [2020-10-12 16:19:45,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 16:19:45,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 16:19:45,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 16:19:45,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 16:19:45,462 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 16:19:45,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 16:19:45,463 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 16:19:45,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 16:19:45,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 16:19:45,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 16:19:45,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 16:19:45,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 16:19:45,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 16:19:45,464 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 16:19:45,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 16:19:45,464 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 16:19:45,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 16:19:45,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 16:19:45,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 16:19:45,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 16:19:45,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 16:19:45,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 16:19:45,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 16:19:45,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 16:19:45,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 16:19:45,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 16:19:45,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 16:19:45,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 16:19:45,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 16:19:45,469 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 16:19:45,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 16:19:45,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 16:19:45,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 16:19:45,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 16:19:45,839 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 16:19:45,839 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-10-12 16:19:45,920 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3be80dbb0/c99a40f6e49a48e4a9c10624bfa03588/FLAG44607c394 [2020-10-12 16:19:46,404 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 16:19:46,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-10-12 16:19:46,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3be80dbb0/c99a40f6e49a48e4a9c10624bfa03588/FLAG44607c394 [2020-10-12 16:19:46,830 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3be80dbb0/c99a40f6e49a48e4a9c10624bfa03588 [2020-10-12 16:19:46,841 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 16:19:46,843 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 16:19:46,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 16:19:46,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 16:19:46,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 16:19:46,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:19:46" (1/1) ... [2020-10-12 16:19:46,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ebaa4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:46, skipping insertion in model container [2020-10-12 16:19:46,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:19:46" (1/1) ... [2020-10-12 16:19:46,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 16:19:46,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 16:19:47,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:19:47,092 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 16:19:47,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 16:19:47,119 INFO L208 MainTranslator]: Completed translation [2020-10-12 16:19:47,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47 WrapperNode [2020-10-12 16:19:47,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 16:19:47,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 16:19:47,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 16:19:47,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 16:19:47,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (1/1) ... [2020-10-12 16:19:47,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 16:19:47,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 16:19:47,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 16:19:47,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 16:19:47,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (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 [2020-10-12 16:19:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 16:19:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 16:19:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-12 16:19:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-12 16:19:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 16:19:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 16:19:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-12 16:19:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-12 16:19:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-12 16:19:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 16:19:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 16:19:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 16:19:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 16:19:47,507 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 16:19:47,508 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 16:19:47,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:19:47 BoogieIcfgContainer [2020-10-12 16:19:47,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 16:19:47,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 16:19:47,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 16:19:47,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 16:19:47,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:19:46" (1/3) ... [2020-10-12 16:19:47,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9fd318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:19:47, skipping insertion in model container [2020-10-12 16:19:47,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:19:47" (2/3) ... [2020-10-12 16:19:47,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9fd318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:19:47, skipping insertion in model container [2020-10-12 16:19:47,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:19:47" (3/3) ... [2020-10-12 16:19:47,520 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-10-12 16:19:47,531 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 16:19:47,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 16:19:47,554 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 16:19:47,578 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 16:19:47,579 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 16:19:47,579 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 16:19:47,579 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 16:19:47,579 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 16:19:47,579 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 16:19:47,580 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 16:19:47,580 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 16:19:47,598 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-10-12 16:19:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-12 16:19:47,604 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:19:47,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:19:47,605 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:19:47,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:19:47,610 INFO L82 PathProgramCache]: Analyzing trace with hash -647006370, now seen corresponding path program 1 times [2020-10-12 16:19:47,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:19:47,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80136581] [2020-10-12 16:19:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:19:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:47,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:47,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:47,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:47,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-12 16:19:47,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:19:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-12 16:19:47,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:47,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 16:19:47,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:19:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-12 16:19:47,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-12 16:19:48,260 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 18 [2020-10-12 16:19:48,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:19:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:48,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:48,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:48,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:19:48,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 16:19:48,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:19:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:19:48,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:19:48,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:19:48,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:19:48,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80136581] [2020-10-12 16:19:48,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 16:19:48,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 16:19:48,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304301317] [2020-10-12 16:19:48,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 16:19:48,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:19:48,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 16:19:48,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-12 16:19:48,370 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2020-10-12 16:19:48,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:19:48,702 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-10-12 16:19:48,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:19:48,704 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-10-12 16:19:48,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:19:48,715 INFO L225 Difference]: With dead ends: 44 [2020-10-12 16:19:48,715 INFO L226 Difference]: Without dead ends: 17 [2020-10-12 16:19:48,720 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:19:48,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-12 16:19:48,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-12 16:19:48,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-12 16:19:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2020-10-12 16:19:48,766 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2020-10-12 16:19:48,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:19:48,767 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2020-10-12 16:19:48,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 16:19:48,767 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2020-10-12 16:19:48,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-12 16:19:48,768 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:19:48,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:19:48,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 16:19:48,769 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:19:48,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:19:48,769 INFO L82 PathProgramCache]: Analyzing trace with hash 523159493, now seen corresponding path program 1 times [2020-10-12 16:19:48,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:19:48,770 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [414344649] [2020-10-12 16:19:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:19:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:48,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-12 16:19:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 426 [2020-10-12 16:19:49,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 16:19:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:19:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-12 16:19:49,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:19:49,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:19:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:49,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:49,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:49,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:19:49,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:19:49,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:19:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:19:49,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:19:49,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:19:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:19:49,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [414344649] [2020-10-12 16:19:49,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:19:49,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 16:19:49,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537826107] [2020-10-12 16:19:49,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:19:49,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:19:49,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:19:49,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:19:49,482 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 8 states. [2020-10-12 16:19:49,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:19:49,637 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2020-10-12 16:19:49,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 16:19:49,638 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-12 16:19:49,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:19:49,639 INFO L225 Difference]: With dead ends: 31 [2020-10-12 16:19:49,639 INFO L226 Difference]: Without dead ends: 20 [2020-10-12 16:19:49,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-12 16:19:49,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-12 16:19:49,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2020-10-12 16:19:49,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-12 16:19:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2020-10-12 16:19:49,647 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 15 [2020-10-12 16:19:49,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:19:49,647 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2020-10-12 16:19:49,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:19:49,647 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-10-12 16:19:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-12 16:19:49,648 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:19:49,648 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:19:49,649 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 16:19:49,649 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:19:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:19:49,649 INFO L82 PathProgramCache]: Analyzing trace with hash 675886995, now seen corresponding path program 2 times [2020-10-12 16:19:49,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:19:49,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153184971] [2020-10-12 16:19:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:19:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:49,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:49,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:49,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:49,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 16:19:49,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 16:19:49,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-10-12 16:19:49,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-12 16:19:49,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:19:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-12 16:19:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:19:49,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:19:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:49,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:49,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:49,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:19:49,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:49,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:19:49,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:19:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:19:49,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:19:49,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:19:50,003 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:19:50,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153184971] [2020-10-12 16:19:50,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:19:50,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-12 16:19:50,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409422465] [2020-10-12 16:19:50,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 16:19:50,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:19:50,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 16:19:50,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-12 16:19:50,006 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 5 states. [2020-10-12 16:19:52,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:19:52,192 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2020-10-12 16:19:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-12 16:19:52,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-12 16:19:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:19:52,194 INFO L225 Difference]: With dead ends: 29 [2020-10-12 16:19:52,194 INFO L226 Difference]: Without dead ends: 21 [2020-10-12 16:19:52,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 16:19:52,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-12 16:19:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-10-12 16:19:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-12 16:19:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-12 16:19:52,207 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 18 [2020-10-12 16:19:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:19:52,208 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-12 16:19:52,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 16:19:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-12 16:19:52,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-12 16:19:52,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:19:52,211 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:19:52,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 16:19:52,213 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:19:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:19:52,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1844072939, now seen corresponding path program 1 times [2020-10-12 16:19:52,216 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:19:52,217 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084280010] [2020-10-12 16:19:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:19:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:52,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:52,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:52,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-12 16:19:52,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:52,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-12 16:19:52,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 16:19:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:19:52,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-12 16:19:52,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 16:19:52,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:19:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:52,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:52,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:52,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:19:52,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:52,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 16:19:52,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:52,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:19:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:19:52,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:19:52,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 16:19:52,797 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 16:19:52,798 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1084280010] [2020-10-12 16:19:52,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:19:52,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-12 16:19:52,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114041569] [2020-10-12 16:19:52,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-12 16:19:52,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:19:52,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-12 16:19:52,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-12 16:19:52,805 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 10 states. [2020-10-12 16:19:53,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:19:53,080 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-10-12 16:19:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 16:19:53,080 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-12 16:19:53,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:19:53,081 INFO L225 Difference]: With dead ends: 28 [2020-10-12 16:19:53,081 INFO L226 Difference]: Without dead ends: 23 [2020-10-12 16:19:53,083 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-10-12 16:19:53,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-12 16:19:53,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-10-12 16:19:53,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-12 16:19:53,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-10-12 16:19:53,096 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 18 [2020-10-12 16:19:53,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:19:53,097 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-10-12 16:19:53,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-12 16:19:53,097 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-10-12 16:19:53,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-12 16:19:53,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 16:19:53,098 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 16:19:53,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 16:19:53,098 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 16:19:53,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 16:19:53,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1817505603, now seen corresponding path program 2 times [2020-10-12 16:19:53,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 16:19:53,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1132306391] [2020-10-12 16:19:53,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 16:19:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:53,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:53,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:53,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-12 16:19:53,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:53,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-12 16:19:53,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-12 16:19:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-12 16:19:53,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-12 16:19:53,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:19:53,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 16:19:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 16:19:53,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 16:19:53,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 16:19:53,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 16:19:53,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 16:19:53,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 16:19:53,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 16:19:53,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 16:19:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 16:19:53,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 16:19:53,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 16:19:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-10-12 16:19:53,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1132306391] [2020-10-12 16:19:53,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 16:19:53,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 16:19:53,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975511230] [2020-10-12 16:19:53,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 16:19:53,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 16:19:53,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 16:19:53,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-12 16:19:53,686 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2020-10-12 16:19:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 16:19:53,780 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-10-12 16:19:53,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 16:19:53,781 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-12 16:19:53,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 16:19:53,781 INFO L225 Difference]: With dead ends: 22 [2020-10-12 16:19:53,781 INFO L226 Difference]: Without dead ends: 0 [2020-10-12 16:19:53,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-10-12 16:19:53,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-12 16:19:53,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-12 16:19:53,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-12 16:19:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-12 16:19:53,784 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-10-12 16:19:53,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 16:19:53,784 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-12 16:19:53,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 16:19:53,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-12 16:19:53,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-12 16:19:53,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 16:19:53,787 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-12 16:19:53,916 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:19:53,916 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-10-12 16:19:53,917 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:19:53,917 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-12 16:19:53,917 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-12 16:19:53,917 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-12 16:19:53,917 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-12 16:19:53,917 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-10-12 16:19:53,918 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-12 16:19:53,918 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-10-12 16:19:53,918 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-10-12 16:19:53,918 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-10-12 16:19:53,918 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-10-12 16:19:53,918 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 31) no Hoare annotation was computed. [2020-10-12 16:19:53,918 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-10-12 16:19:53,919 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-10-12 16:19:53,919 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 28) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-10-12 16:19:53,920 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 28) the Hoare annotation is: (let ((.cse2 (div (+ main_~i~0 main_~j~0) 4294967296)) (.cse3 (div main_~l~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ (* 4294967296 .cse2) main_~l~0))) (and (< .cse0 (+ main_~i~0 main_~j~0 .cse1 1)) (<= (+ main_~i~0 main_~j~0 .cse1) .cse0) (<= .cse2 .cse3)))) [2020-10-12 16:19:53,920 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-12 16:19:53,921 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 31) no Hoare annotation was computed. [2020-10-12 16:19:53,921 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-10-12 16:19:53,921 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-10-12 16:19:53,921 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-12 16:19:53,921 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-10-12 16:19:53,921 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-10-12 16:19:53,922 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-10-12 16:19:53,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 04:19:53 BoogieIcfgContainer [2020-10-12 16:19:53,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-12 16:19:53,949 INFO L168 Benchmark]: Toolchain (without parser) took 7104.71 ms. Allocated memory was 141.6 MB in the beginning and 243.8 MB in the end (delta: 102.2 MB). Free memory was 103.3 MB in the beginning and 123.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-10-12 16:19:53,951 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-12 16:19:53,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.05 ms. Allocated memory is still 141.6 MB. Free memory was 102.9 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-12 16:19:53,960 INFO L168 Benchmark]: Boogie Preprocessor took 123.12 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 93.4 MB in the beginning and 180.5 MB in the end (delta: -87.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-10-12 16:19:53,961 INFO L168 Benchmark]: RCFGBuilder took 267.89 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 167.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-10-12 16:19:53,962 INFO L168 Benchmark]: TraceAbstraction took 6432.42 ms. Allocated memory was 202.4 MB in the beginning and 243.8 MB in the end (delta: 41.4 MB). Free memory was 167.3 MB in the beginning and 123.4 MB in the end (delta: 43.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-10-12 16:19:53,976 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.6 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.05 ms. Allocated memory is still 141.6 MB. Free memory was 102.9 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.12 ms. Allocated memory was 141.6 MB in the beginning and 202.4 MB in the end (delta: 60.8 MB). Free memory was 93.4 MB in the beginning and 180.5 MB in the end (delta: -87.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 267.89 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 167.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6432.42 ms. Allocated memory was 202.4 MB in the beginning and 243.8 MB in the end (delta: 41.4 MB). Free memory was 167.3 MB in the beginning and 123.4 MB in the end (delta: 43.9 MB). Peak memory consumption was 85.3 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: 21]: Loop Invariant Derived loop invariant: l <= i + j && i + j <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 54 SDtfs, 87 SDslu, 142 SDs, 0 SdLazy, 264 SolverSat, 42 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.1s 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 20 NumberOfFragments, 65 HoareAnnotationTreeSize, 13 FomulaSimplifications, 216 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 11943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 12/23 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...