/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/oomInt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:57:40,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:57:40,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:57:40,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:57:40,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:57:40,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:57:40,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:57:40,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:57:40,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:57:40,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:57:40,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:57:40,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:57:40,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:57:40,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:57:40,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:57:40,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:57:40,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:57:40,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:57:40,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:57:40,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:57:40,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:57:40,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:57:40,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:57:40,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:57:40,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:57:40,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:57:40,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:57:40,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:57:40,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:57:40,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:57:40,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:57:40,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:57:40,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:57:40,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:57:40,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:57:40,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:57:40,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:57:40,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:57:40,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:57:40,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:57:40,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:57:40,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 00:57:40,551 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:57:40,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:57:40,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:57:40,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:57:40,554 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:57:40,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:57:40,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:57:40,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:57:40,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:57:40,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:57:40,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:57:40,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:57:40,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:57:40,558 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:57:40,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:57:40,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:57:40,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:57:40,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:57:40,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:57:40,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:57:40,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:57:40,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:57:40,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:57:40,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:57:40,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:57:40,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:57:40,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:57:40,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:57:40,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:57:40,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-09-25 00:57:41,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:57:41,051 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:57:41,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:57:41,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:57:41,059 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:57:41,060 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.i [2020-09-25 00:57:41,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8589afaa/055424c9270b4953bfd9644651bab5dd/FLAGd0cbca31d [2020-09-25 00:57:41,657 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:57:41,658 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/oomInt.i [2020-09-25 00:57:41,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8589afaa/055424c9270b4953bfd9644651bab5dd/FLAGd0cbca31d [2020-09-25 00:57:41,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b8589afaa/055424c9270b4953bfd9644651bab5dd [2020-09-25 00:57:42,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:57:42,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:57:42,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:42,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:57:42,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:57:42,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e48a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42, skipping insertion in model container [2020-09-25 00:57:42,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:57:42,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:57:42,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:42,271 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:57:42,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:57:42,303 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:57:42,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42 WrapperNode [2020-09-25 00:57:42,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:57:42,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:57:42,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:57:42,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:57:42,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,325 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... [2020-09-25 00:57:42,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:57:42,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:57:42,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:57:42,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:57:42,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:57:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:57:42,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:57:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 00:57:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-09-25 00:57:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-09-25 00:57:42,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:57:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:57:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 00:57:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-09-25 00:57:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-09-25 00:57:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:57:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:57:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:57:42,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:57:42,693 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 00:57:42,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:42 BoogieIcfgContainer [2020-09-25 00:57:42,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:57:42,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:57:42,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:57:42,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:57:42,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:57:42" (1/3) ... [2020-09-25 00:57:42,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2a764f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:42, skipping insertion in model container [2020-09-25 00:57:42,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:57:42" (2/3) ... [2020-09-25 00:57:42,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2a764f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:57:42, skipping insertion in model container [2020-09-25 00:57:42,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:57:42" (3/3) ... [2020-09-25 00:57:42,709 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.i [2020-09-25 00:57:42,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:57:42,727 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:57:42,747 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:57:42,778 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:57:42,778 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:57:42,779 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:57:42,779 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:57:42,779 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:57:42,779 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:57:42,779 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:57:42,779 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:57:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-09-25 00:57:42,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:57:42,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:42,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:42,808 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:42,816 INFO L82 PathProgramCache]: Analyzing trace with hash 531924990, now seen corresponding path program 1 times [2020-09-25 00:57:42,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:42,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1243675909] [2020-09-25 00:57:42,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:43,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:43,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:43,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:43,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:57:43,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-09-25 00:57:43,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:57:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:57:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:57:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:57:43,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:43,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:43,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:43,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:57:43,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:43,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:57:43,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:43,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:43,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:43,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:43,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:57:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:43,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:43,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:43,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:43,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:43,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:43,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 00:57:43,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:43,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 00:57:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:43,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 00:57:43,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:43,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1243675909] [2020-09-25 00:57:43,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:43,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:57:43,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445289908] [2020-09-25 00:57:43,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:57:43,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:43,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:57:43,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:57:43,625 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 9 states. [2020-09-25 00:57:43,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:43,930 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-25 00:57:43,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:57:43,932 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-25 00:57:43,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:43,946 INFO L225 Difference]: With dead ends: 55 [2020-09-25 00:57:43,946 INFO L226 Difference]: Without dead ends: 20 [2020-09-25 00:57:43,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-09-25 00:57:43,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-09-25 00:57:44,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-09-25 00:57:44,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-09-25 00:57:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-09-25 00:57:44,011 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 19 [2020-09-25 00:57:44,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:44,012 INFO L479 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-09-25 00:57:44,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:57:44,012 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-09-25 00:57:44,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-25 00:57:44,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:57:44,015 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:57:44,015 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:57:44,015 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:57:44,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:57:44,016 INFO L82 PathProgramCache]: Analyzing trace with hash 839962558, now seen corresponding path program 1 times [2020-09-25 00:57:44,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:57:44,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003273309] [2020-09-25 00:57:44,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:57:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:44,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:44,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:44,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 00:57:44,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 00:57:44,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 00:57:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 00:57:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 00:57:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:57:44,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:57:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:44,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:44,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:44,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:57:44,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:57:44,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 00:57:44,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:44,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:57:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:57:44,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:57:44,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 00:57:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:57:44,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:44,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:57:44,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:57:44,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 00:57:44,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 00:57:44,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 00:57:44,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-09-25 00:57:44,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 00:57:44,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 00:57:44,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 00:57:44,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:57:44,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:57:44,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003273309] [2020-09-25 00:57:44,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:57:44,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 00:57:44,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256406325] [2020-09-25 00:57:44,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 00:57:44,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:57:44,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 00:57:44,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 00:57:44,482 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 9 states. [2020-09-25 00:57:44,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:57:44,557 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-09-25 00:57:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 00:57:44,558 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2020-09-25 00:57:44,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:57:44,559 INFO L225 Difference]: With dead ends: 20 [2020-09-25 00:57:44,559 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:57:44,560 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:57:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:57:44,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:57:44,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:57:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:57:44,561 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-25 00:57:44,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:57:44,562 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:57:44,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 00:57:44,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:57:44,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:57:44,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:57:44,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:57:44,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:57:44,636 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-09-25 00:57:44,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:57:44,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:57:44,637 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= 0 ~p~0) [2020-09-25 00:57:44,637 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:57:44,637 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:57:44,637 INFO L268 CegarLoopResult]: For program point abs_intEXIT(lines 16 25) no Hoare annotation was computed. [2020-09-25 00:57:44,638 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 00:57:44,638 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 00:57:44,638 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 16 25) the Hoare annotation is: true [2020-09-25 00:57:44,638 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-09-25 00:57:44,638 INFO L268 CegarLoopResult]: For program point abs_intFINAL(lines 16 25) no Hoare annotation was computed. [2020-09-25 00:57:44,638 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (or (not (<= 0 |old(~p~0)|)) (<= 1 ~p~0)) [2020-09-25 00:57:44,639 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 00:57:44,639 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-25 00:57:44,639 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 27 31) the Hoare annotation is: (or (= ~p~0 |old(~p~0)|) (not (<= 0 |old(~p~0)|))) [2020-09-25 00:57:44,639 INFO L268 CegarLoopResult]: For program point L29-2(line 29) no Hoare annotation was computed. [2020-09-25 00:57:44,639 INFO L268 CegarLoopResult]: For program point firstFunctionFINAL(lines 27 31) no Hoare annotation was computed. [2020-09-25 00:57:44,639 INFO L268 CegarLoopResult]: For program point firstFunctionEXIT(lines 27 31) no Hoare annotation was computed. [2020-09-25 00:57:44,640 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 33 36) the Hoare annotation is: (or (= ~p~0 |old(~p~0)|) (not (<= 0 |old(~p~0)|))) [2020-09-25 00:57:44,640 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 33 36) no Hoare annotation was computed. [2020-09-25 00:57:44,640 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 33 36) no Hoare annotation was computed. [2020-09-25 00:57:44,640 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2020-09-25 00:57:44,640 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-25 00:57:44,641 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2020-09-25 00:57:44,641 INFO L268 CegarLoopResult]: For program point L8(lines 8 11) no Hoare annotation was computed. [2020-09-25 00:57:44,641 INFO L268 CegarLoopResult]: For program point L8-2(lines 6 12) no Hoare annotation was computed. [2020-09-25 00:57:44,641 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-09-25 00:57:44,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:57:44 BoogieIcfgContainer [2020-09-25 00:57:44,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:57:44,653 INFO L168 Benchmark]: Toolchain (without parser) took 2637.31 ms. Allocated memory was 140.5 MB in the beginning and 234.4 MB in the end (delta: 93.8 MB). Free memory was 103.9 MB in the beginning and 176.6 MB in the end (delta: -72.7 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:44,654 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 00:57:44,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.84 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 94.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:44,656 INFO L168 Benchmark]: Boogie Preprocessor took 30.95 ms. Allocated memory is still 140.5 MB. Free memory was 94.0 MB in the beginning and 92.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:44,657 INFO L168 Benchmark]: RCFGBuilder took 362.69 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.5 MB in the beginning and 171.0 MB in the end (delta: -78.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:44,658 INFO L168 Benchmark]: TraceAbstraction took 1949.34 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 170.4 MB in the beginning and 176.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:57:44,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 285.84 ms. Allocated memory is still 140.5 MB. Free memory was 103.3 MB in the beginning and 94.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.95 ms. Allocated memory is still 140.5 MB. Free memory was 94.0 MB in the beginning and 92.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.69 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 92.5 MB in the beginning and 171.0 MB in the end (delta: -78.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1949.34 ms. Allocated memory was 203.4 MB in the beginning and 234.4 MB in the end (delta: 30.9 MB). Free memory was 170.4 MB in the beginning and 176.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 51 SDslu, 123 SDs, 0 SdLazy, 123 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 33 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 37 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1584 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...