/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 00:06:41,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 00:06:41,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 00:06:41,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 00:06:41,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 00:06:41,483 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 00:06:41,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 00:06:41,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 00:06:41,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 00:06:41,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 00:06:41,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 00:06:41,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 00:06:41,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 00:06:41,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 00:06:41,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 00:06:41,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 00:06:41,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 00:06:41,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 00:06:41,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 00:06:41,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 00:06:41,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 00:06:41,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 00:06:41,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 00:06:41,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 00:06:41,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 00:06:41,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 00:06:41,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 00:06:41,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 00:06:41,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 00:06:41,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 00:06:41,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 00:06:41,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 00:06:41,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 00:06:41,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 00:06:41,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 00:06:41,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 00:06:41,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 00:06:41,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 00:06:41,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 00:06:41,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 00:06:41,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 00:06:41,562 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 00:06:41,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 00:06:41,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 00:06:41,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 00:06:41,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 00:06:41,611 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 00:06:41,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 00:06:41,612 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 00:06:41,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 00:06:41,613 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 00:06:41,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 00:06:41,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 00:06:41,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 00:06:41,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 00:06:41,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 00:06:41,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 00:06:41,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 00:06:41,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 00:06:41,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 00:06:41,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 00:06:41,616 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 00:06:41,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 00:06:41,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 00:06:41,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 00:06:41,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 00:06:41,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 00:06:41,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 00:06:41,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 00:06:41,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 00:06:41,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 00:06:41,620 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-25 00:06:42,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 00:06:42,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 00:06:42,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 00:06:42,142 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 00:06:42,142 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 00:06:42,143 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c [2020-09-25 00:06:42,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82143abfa/e4e8b75cda9047b995b67eeab0303576/FLAG4e1189076 [2020-09-25 00:06:42,720 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 00:06:42,721 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt4.c [2020-09-25 00:06:42,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82143abfa/e4e8b75cda9047b995b67eeab0303576/FLAG4e1189076 [2020-09-25 00:06:43,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/82143abfa/e4e8b75cda9047b995b67eeab0303576 [2020-09-25 00:06:43,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 00:06:43,086 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 00:06:43,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 00:06:43,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 00:06:43,091 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 00:06:43,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@243023c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43, skipping insertion in model container [2020-09-25 00:06:43,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 00:06:43,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 00:06:43,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:06:43,383 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 00:06:43,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 00:06:43,447 INFO L208 MainTranslator]: Completed translation [2020-09-25 00:06:43,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43 WrapperNode [2020-09-25 00:06:43,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 00:06:43,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 00:06:43,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 00:06:43,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 00:06:43,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (1/1) ... [2020-09-25 00:06:43,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 00:06:43,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 00:06:43,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 00:06:43,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 00:06:43,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (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 00:06:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 00:06:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 00:06:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 00:06:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 00:06:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 00:06:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 00:06:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 00:06:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 00:06:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 00:06:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 00:06:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 00:06:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 00:06:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 00:06:43,932 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 00:06:43,933 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 00:06:43,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:43 BoogieIcfgContainer [2020-09-25 00:06:43,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 00:06:43,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 00:06:43,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 00:06:43,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 00:06:43,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:06:43" (1/3) ... [2020-09-25 00:06:43,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e887354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:43, skipping insertion in model container [2020-09-25 00:06:43,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:06:43" (2/3) ... [2020-09-25 00:06:43,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e887354 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:06:43, skipping insertion in model container [2020-09-25 00:06:43,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:06:43" (3/3) ... [2020-09-25 00:06:43,950 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt4.c [2020-09-25 00:06:43,964 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 00:06:43,978 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 00:06:44,006 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 00:06:44,062 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 00:06:44,062 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 00:06:44,062 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 00:06:44,063 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 00:06:44,065 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 00:06:44,065 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 00:06:44,065 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 00:06:44,065 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 00:06:44,104 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-09-25 00:06:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-09-25 00:06:44,112 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:06:44,114 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] [2020-09-25 00:06:44,114 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:06:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:06:44,120 INFO L82 PathProgramCache]: Analyzing trace with hash 2048298944, now seen corresponding path program 1 times [2020-09-25 00:06:44,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:06:44,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [76959396] [2020-09-25 00:06:44,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:06:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:06:44,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:44,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:06:44,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 00:06:44,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:06:44,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 489 [2020-09-25 00:06:44,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:06:44,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 00:06:44,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:06:44,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 00:06:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 00:06:45,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:06:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:06:45,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:45,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:06:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:06:45,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:06:45,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:06:45,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:06:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:06:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:06:45,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:06:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:06:45,200 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 00:06:45,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [76959396] [2020-09-25 00:06:45,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 00:06:45,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 00:06:45,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681350824] [2020-09-25 00:06:45,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 00:06:45,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:06:45,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 00:06:45,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 00:06:45,235 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 10 states. [2020-09-25 00:06:45,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:06:45,883 INFO L93 Difference]: Finished difference Result 109 states and 147 transitions. [2020-09-25 00:06:45,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 00:06:45,886 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-09-25 00:06:45,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:06:45,901 INFO L225 Difference]: With dead ends: 109 [2020-09-25 00:06:45,901 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 00:06:45,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2020-09-25 00:06:45,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 00:06:45,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 31. [2020-09-25 00:06:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 00:06:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2020-09-25 00:06:45,965 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 20 [2020-09-25 00:06:45,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:06:45,965 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2020-09-25 00:06:45,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 00:06:45,965 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2020-09-25 00:06:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 00:06:45,967 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:06:45,967 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] [2020-09-25 00:06:45,967 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 00:06:45,967 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:06:45,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:06:45,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1303654892, now seen corresponding path program 1 times [2020-09-25 00:06:45,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:06:45,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [172537291] [2020-09-25 00:06:45,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:06:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:06:46,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:46,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:06:46,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 00:06:46,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:06:46,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 541 [2020-09-25 00:06:46,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:06:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 00:06:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:06:46,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 00:06:46,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:06:46,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:06:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:06:46,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:46,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:06:46,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:06:46,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:06:46,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 00:06:46,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:06:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:06:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:06:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:06:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:06:46,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 00:06:46,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [172537291] [2020-09-25 00:06:46,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:06:46,932 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:06:46,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177679250] [2020-09-25 00:06:46,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:06:46,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:06:46,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:06:46,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:06:46,952 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 12 states. [2020-09-25 00:06:47,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:06:47,572 INFO L93 Difference]: Finished difference Result 76 states and 94 transitions. [2020-09-25 00:06:47,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 00:06:47,573 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 24 [2020-09-25 00:06:47,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:06:47,575 INFO L225 Difference]: With dead ends: 76 [2020-09-25 00:06:47,575 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 00:06:47,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2020-09-25 00:06:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 00:06:47,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 34. [2020-09-25 00:06:47,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 00:06:47,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2020-09-25 00:06:47,586 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 24 [2020-09-25 00:06:47,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:06:47,586 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2020-09-25 00:06:47,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:06:47,586 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2020-09-25 00:06:47,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-09-25 00:06:47,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 00:06:47,588 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 00:06:47,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 00:06:47,588 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 00:06:47,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 00:06:47,589 INFO L82 PathProgramCache]: Analyzing trace with hash -132325864, now seen corresponding path program 2 times [2020-09-25 00:06:47,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 00:06:47,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982123184] [2020-09-25 00:06:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 00:06:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:06:47,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:47,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:47,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:48,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:06:48,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 00:06:48,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 00:06:48,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 808 [2020-09-25 00:06:48,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:06:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 00:06:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 00:06:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 00:06:48,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 00:06:48,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 00:06:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 00:06:48,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 00:06:48,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 00:06:48,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 00:06:48,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 00:06:48,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 00:06:48,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-25 00:06:48,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 00:06:48,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 00:06:48,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 00:06:48,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 00:06:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 00:06:48,652 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982123184] [2020-09-25 00:06:48,652 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 00:06:48,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 00:06:48,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101135362] [2020-09-25 00:06:48,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 00:06:48,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 00:06:48,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 00:06:48,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-25 00:06:48,654 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 12 states. [2020-09-25 00:06:49,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 00:06:49,321 INFO L93 Difference]: Finished difference Result 64 states and 79 transitions. [2020-09-25 00:06:49,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 00:06:49,321 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-09-25 00:06:49,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 00:06:49,322 INFO L225 Difference]: With dead ends: 64 [2020-09-25 00:06:49,322 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 00:06:49,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=165, Invalid=591, Unknown=0, NotChecked=0, Total=756 [2020-09-25 00:06:49,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 00:06:49,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 00:06:49,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 00:06:49,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 00:06:49,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-09-25 00:06:49,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 00:06:49,326 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 00:06:49,326 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 00:06:49,327 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 00:06:49,327 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 00:06:49,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 00:06:49,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 00:06:49,573 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:06:49,573 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-25 00:06:49,574 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:06:49,574 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 00:06:49,574 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 00:06:49,574 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 00:06:49,574 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 00:06:49,574 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 00:06:49,575 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 00:06:49,575 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 00:06:49,575 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 00:06:49,575 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 00:06:49,575 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-25 00:06:49,575 INFO L268 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-09-25 00:06:49,576 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 33) no Hoare annotation was computed. [2020-09-25 00:06:49,576 INFO L268 CegarLoopResult]: For program point L23(lines 23 28) no Hoare annotation was computed. [2020-09-25 00:06:49,576 INFO L268 CegarLoopResult]: For program point L25-2(lines 21 28) no Hoare annotation was computed. [2020-09-25 00:06:49,576 INFO L268 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2020-09-25 00:06:49,576 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 00:06:49,576 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 30) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v4~0))) (and (<= .cse0 main_~l~0) (<= main_~l~0 .cse0))) [2020-09-25 00:06:49,577 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 00:06:49,577 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 30) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0 main_~k~0 main_~v4~0))) (or (and (<= .cse0 main_~l~0) (<= main_~l~0 .cse0)) (let ((.cse2 (+ main_~i~0 main_~j~0 main_~k~0)) (.cse1 (+ main_~i~0 main_~k~0))) (and (<= 0 .cse1) (<= 0 .cse2) (<= main_~i~0 0) (<= .cse2 0) (= main_~l~0 0) (<= 0 main_~i~0) (<= .cse0 0) (<= .cse1 0) (<= (+ main_~i~0 main_~j~0 main_~k~0 main_~v4~0 (* 4294967296 (div main_~l~0 4294967296))) (+ (* 4294967296 (div .cse0 4294967296)) main_~l~0)))))) [2020-09-25 00:06:49,577 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 00:06:49,577 INFO L268 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-09-25 00:06:49,577 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 00:06:49,578 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 00:06:49,578 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 33) no Hoare annotation was computed. [2020-09-25 00:06:49,578 INFO L268 CegarLoopResult]: For program point L15-3(line 15) no Hoare annotation was computed. [2020-09-25 00:06:49,578 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 33) the Hoare annotation is: true [2020-09-25 00:06:49,578 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-25 00:06:49,579 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 00:06:49,579 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 00:06:49,579 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-25 00:06:49,579 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 00:06:49,579 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-09-25 00:06:49,579 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 00:06:49,580 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 00:06:49,580 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 00:06:49,580 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 00:06:49,580 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 00:06:49,580 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 00:06:49,581 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 00:06:49,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:06:49 BoogieIcfgContainer [2020-09-25 00:06:49,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 00:06:49,607 INFO L168 Benchmark]: Toolchain (without parser) took 6524.53 ms. Allocated memory was 138.9 MB in the beginning and 288.9 MB in the end (delta: 149.9 MB). Free memory was 102.8 MB in the beginning and 216.0 MB in the end (delta: -113.3 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2020-09-25 00:06:49,608 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 00:06:49,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.06 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-25 00:06:49,611 INFO L168 Benchmark]: Boogie Preprocessor took 115.28 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 92.0 MB in the beginning and 179.9 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:06:49,612 INFO L168 Benchmark]: RCFGBuilder took 372.96 ms. Allocated memory is still 200.8 MB. Free memory was 179.9 MB in the beginning and 164.1 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2020-09-25 00:06:49,613 INFO L168 Benchmark]: TraceAbstraction took 5663.16 ms. Allocated memory was 200.8 MB in the beginning and 288.9 MB in the end (delta: 88.1 MB). Free memory was 164.1 MB in the beginning and 216.0 MB in the end (delta: -51.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2020-09-25 00:06:49,617 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 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.06 ms. Allocated memory is still 138.9 MB. Free memory was 102.1 MB in the beginning and 92.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.28 ms. Allocated memory was 138.9 MB in the beginning and 200.8 MB in the end (delta: 61.9 MB). Free memory was 92.0 MB in the beginning and 179.9 MB in the end (delta: -87.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 372.96 ms. Allocated memory is still 200.8 MB. Free memory was 179.9 MB in the beginning and 164.1 MB in the end (delta: 15.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5663.16 ms. Allocated memory was 200.8 MB in the beginning and 288.9 MB in the end (delta: 88.1 MB). Free memory was 164.1 MB in the beginning and 216.0 MB in the end (delta: -51.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: i + j + k + v4 <= l && l <= i + j + k + v4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 513 SDslu, 156 SDs, 0 SdLazy, 644 SolverSat, 115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 69 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 13 PreInvPairs, 25 NumberOfFragments, 99 HoareAnnotationTreeSize, 13 FomulaSimplifications, 3185 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 124 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 22530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...