/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-invgen/nested9.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:34:50,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:34:50,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:34:50,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:34:50,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:34:50,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:34:50,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:34:50,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:34:50,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:34:50,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:34:50,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:34:50,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:34:50,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:34:50,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:34:50,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:34:50,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:34:50,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:34:50,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:34:50,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:34:50,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:34:50,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:34:50,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:34:50,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:34:50,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:34:50,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:34:50,420 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:34:50,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:34:50,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:34:50,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:34:50,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:34:50,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:34:50,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:34:50,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:34:50,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:34:50,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:34:50,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:34:50,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:34:50,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:34:50,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:34:50,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:34:50,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:34:50,436 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 [2020-09-24 19:34:50,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:34:50,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:34:50,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:34:50,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:34:50,485 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:34:50,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:34:50,485 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:34:50,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:34:50,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:34:50,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:34:50,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:34:50,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:34:50,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:34:50,488 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:34:50,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:34:50,488 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:34:50,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:34:50,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:34:50,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:34:50,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:34:50,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:34:50,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:34:50,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:34:50,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:34:50,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:34:50,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:34:50,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:34:50,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:34:50,491 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:34:50,491 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:34:50,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:34:50,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:34:50,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:34:50,969 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:34:50,970 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:34:50,971 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/nested9.i [2020-09-24 19:34:51,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b728d94dc/6c0e77a7ea7748f38befbe3c3b4895bf/FLAG8ff786351 [2020-09-24 19:34:51,589 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:34:51,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/nested9.i [2020-09-24 19:34:51,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b728d94dc/6c0e77a7ea7748f38befbe3c3b4895bf/FLAG8ff786351 [2020-09-24 19:34:51,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b728d94dc/6c0e77a7ea7748f38befbe3c3b4895bf [2020-09-24 19:34:51,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:34:51,972 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:34:51,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:34:51,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:34:51,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:34:51,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:34:51" (1/1) ... [2020-09-24 19:34:51,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f21738f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:51, skipping insertion in model container [2020-09-24 19:34:51,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:34:51" (1/1) ... [2020-09-24 19:34:51,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:34:52,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:34:52,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:34:52,262 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:34:52,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:34:52,303 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:34:52,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52 WrapperNode [2020-09-24 19:34:52,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:34:52,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:34:52,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:34:52,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:34:52,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,410 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (1/1) ... [2020-09-24 19:34:52,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:34:52,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:34:52,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:34:52,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:34:52,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (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 [2020-09-24 19:34:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:34:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:34:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 19:34:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 19:34:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:34:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:34:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 19:34:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 19:34:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 19:34:52,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:34:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:34:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:34:52,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:34:52,795 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:34:52,795 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-09-24 19:34:52,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:34:52 BoogieIcfgContainer [2020-09-24 19:34:52,802 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:34:52,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:34:52,804 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:34:52,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:34:52,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:34:51" (1/3) ... [2020-09-24 19:34:52,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6833588f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:34:52, skipping insertion in model container [2020-09-24 19:34:52,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:34:52" (2/3) ... [2020-09-24 19:34:52,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6833588f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:34:52, skipping insertion in model container [2020-09-24 19:34:52,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:34:52" (3/3) ... [2020-09-24 19:34:52,813 INFO L109 eAbstractionObserver]: Analyzing ICFG nested9.i [2020-09-24 19:34:52,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:34:52,842 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:34:52,868 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:34:52,905 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:34:52,905 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:34:52,905 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:34:52,905 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:34:52,906 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:34:52,906 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:34:52,906 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:34:52,906 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:34:52,944 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2020-09-24 19:34:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 19:34:52,963 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:52,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:34:52,965 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:52,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:52,972 INFO L82 PathProgramCache]: Analyzing trace with hash -980226087, now seen corresponding path program 1 times [2020-09-24 19:34:52,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:52,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679899746] [2020-09-24 19:34:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:53,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:53,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:53,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:53,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:53,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:54,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:34:54,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 19:34:54,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-24 19:34:54,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:54,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:34:54,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-24 19:34:54,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:34:54,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:34:54,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:54,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:54,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:34:54,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:34:54,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:54,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:34:54,232 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679899746] [2020-09-24 19:34:54,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:54,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:34:54,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699389413] [2020-09-24 19:34:54,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:34:54,244 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:54,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:34:54,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:34:54,266 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 5 states. [2020-09-24 19:34:54,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:54,710 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2020-09-24 19:34:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 19:34:54,712 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-24 19:34:54,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:54,722 INFO L225 Difference]: With dead ends: 88 [2020-09-24 19:34:54,723 INFO L226 Difference]: Without dead ends: 51 [2020-09-24 19:34:54,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:34:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-24 19:34:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2020-09-24 19:34:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-24 19:34:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-09-24 19:34:54,779 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 34 [2020-09-24 19:34:54,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:54,779 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-09-24 19:34:54,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:34:54,780 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-09-24 19:34:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-24 19:34:54,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:34:54,782 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:34:54,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:34:54,782 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:34:54,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:34:54,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1377800797, now seen corresponding path program 1 times [2020-09-24 19:34:54,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:34:54,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64101636] [2020-09-24 19:34:54,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:34:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:54,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:54,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:55,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-24 19:34:55,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-24 19:34:55,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1002 [2020-09-24 19:34:55,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:55,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:34:55,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-24 19:34:55,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 19:34:55,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:34:55,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:34:55,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:34:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:34:55,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:34:55,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:34:55,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:34:55,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:34:55,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:34:55,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:34:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:34:55,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:34:55,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:34:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 19:34:55,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64101636] [2020-09-24 19:34:55,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:34:55,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 19:34:55,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936520205] [2020-09-24 19:34:55,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 19:34:55,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:34:55,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 19:34:55,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 19:34:55,916 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 8 states. [2020-09-24 19:34:56,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:34:56,186 INFO L93 Difference]: Finished difference Result 49 states and 51 transitions. [2020-09-24 19:34:56,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 19:34:56,187 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-09-24 19:34:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:34:56,188 INFO L225 Difference]: With dead ends: 49 [2020-09-24 19:34:56,188 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:34:56,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-24 19:34:56,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:34:56,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:34:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:34:56,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:34:56,192 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2020-09-24 19:34:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:34:56,192 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:34:56,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 19:34:56,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:34:56,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:34:56,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:34:56,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:34:56,309 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:34:56,309 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~__BLAST_NONDET~0 |old(~__BLAST_NONDET~0)|) [2020-09-24 19:34:56,309 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:34:56,309 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 19:34:56,310 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 19:34:56,310 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 19:34:56,311 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 19:34:56,311 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:34:56,311 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:34:56,311 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 19:34:56,311 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 19:34:56,311 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 19:34:56,312 INFO L271 CegarLoopResult]: At program point L27(lines 14 29) the Hoare annotation is: true [2020-09-24 19:34:56,312 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2020-09-24 19:34:56,312 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-09-24 19:34:56,312 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-09-24 19:34:56,312 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 19:34:56,312 INFO L268 CegarLoopResult]: For program point L23-4(line 23) no Hoare annotation was computed. [2020-09-24 19:34:56,313 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-24 19:34:56,314 INFO L271 CegarLoopResult]: At program point L23-5(lines 23 26) the Hoare annotation is: true [2020-09-24 19:34:56,314 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 19:34:56,314 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 19:34:56,315 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 19:34:56,315 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-24 19:34:56,315 INFO L268 CegarLoopResult]: For program point L15-4(line 15) no Hoare annotation was computed. [2020-09-24 19:34:56,315 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 19:34:56,315 INFO L268 CegarLoopResult]: For program point L24-3(lines 24 26) no Hoare annotation was computed. [2020-09-24 19:34:56,315 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 19:34:56,316 INFO L268 CegarLoopResult]: For program point L24-4(line 24) no Hoare annotation was computed. [2020-09-24 19:34:56,316 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-24 19:34:56,316 INFO L268 CegarLoopResult]: For program point L24-5(line 24) no Hoare annotation was computed. [2020-09-24 19:34:56,316 INFO L264 CegarLoopResult]: At program point L24-6(lines 24 26) the Hoare annotation is: (<= (+ main_~i~0 1) main_~n~0) [2020-09-24 19:34:56,318 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 19:34:56,318 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 19:34:56,318 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-24 19:34:56,319 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 19:34:56,319 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-09-24 19:34:56,319 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 19:34:56,319 INFO L268 CegarLoopResult]: For program point L25-4(line 25) no Hoare annotation was computed. [2020-09-24 19:34:56,319 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 19:34:56,319 INFO L264 CegarLoopResult]: At program point L25-5(lines 25 26) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) (+ main_~i~0 (* 2 main_~n~0)))) [2020-09-24 19:34:56,320 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 19:34:56,320 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 19:34:56,320 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-24 19:34:56,320 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2020-09-24 19:34:56,320 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 29) the Hoare annotation is: true [2020-09-24 19:34:56,321 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 (* 2 main_~n~0)))) (and (<= (+ main_~k~0 4) .cse0) (<= (+ main_~i~0 1) main_~n~0) (<= (+ main_~j~0 3) .cse0))) [2020-09-24 19:34:56,321 INFO L268 CegarLoopResult]: For program point L26-1(lines 25 26) no Hoare annotation was computed. [2020-09-24 19:34:56,321 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 19:34:56,321 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 19:34:56,321 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 19:34:56,321 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-24 19:34:56,321 INFO L268 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-09-24 19:34:56,322 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 19:34:56,322 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 19:34:56,323 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 19:34:56,323 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 19:34:56,323 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 19:34:56,324 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 19:34:56,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 07:34:56 BoogieIcfgContainer [2020-09-24 19:34:56,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 19:34:56,368 INFO L168 Benchmark]: Toolchain (without parser) took 4393.61 ms. Allocated memory was 141.0 MB in the beginning and 244.3 MB in the end (delta: 103.3 MB). Free memory was 103.1 MB in the beginning and 172.4 MB in the end (delta: -69.3 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:56,370 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 19:34:56,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.81 ms. Allocated memory is still 141.0 MB. Free memory was 102.5 MB in the beginning and 92.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:56,374 INFO L168 Benchmark]: Boogie Preprocessor took 117.05 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 92.5 MB in the beginning and 182.6 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:56,376 INFO L168 Benchmark]: RCFGBuilder took 380.24 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 165.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:56,378 INFO L168 Benchmark]: TraceAbstraction took 3554.90 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 165.9 MB in the beginning and 172.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-09-24 19:34:56,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.81 ms. Allocated memory is still 141.0 MB. Free memory was 102.5 MB in the beginning and 92.5 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.05 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 92.5 MB in the beginning and 182.6 MB in the end (delta: -90.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 380.24 ms. Allocated memory is still 204.5 MB. Free memory was 182.6 MB in the beginning and 165.9 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3554.90 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 165.9 MB in the beginning and 172.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 33.3 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: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: i + 1 <= n - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: i + 1 <= n && j + 3 <= i + 2 * n - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 91 SDtfs, 129 SDslu, 52 SDs, 0 SdLazy, 292 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 11 PreInvPairs, 19 NumberOfFragments, 53 HoareAnnotationTreeSize, 11 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 27 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 4422 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 3/3 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...