/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=LOWLEXORDER --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/sumt2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:52:39,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:52:39,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:52:40,012 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:52:40,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:52:40,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:52:40,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:52:40,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:52:40,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:52:40,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:52:40,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:52:40,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:52:40,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:52:40,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:52:40,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:52:40,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:52:40,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:52:40,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:52:40,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:52:40,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:52:40,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:52:40,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:52:40,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:52:40,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:52:40,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:52:40,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:52:40,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:52:40,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:52:40,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:52:40,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:52:40,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:52:40,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:52:40,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:52:40,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:52:40,052 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:52:40,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:52:40,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:52:40,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:52:40,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:52:40,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:52:40,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:52:40,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:52:40,118 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:52:40,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:52:40,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:52:40,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:52:40,124 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:52:40,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:52:40,124 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:52:40,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:52:40,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:52:40,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:52:40,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:52:40,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:52:40,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:52:40,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:52:40,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:52:40,127 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:52:40,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:52:40,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:52:40,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:52:40,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:52:40,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:52:40,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:52:40,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:52:40,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:52:40,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:52:40,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:52:40,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:52:40,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:52:40,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:52:40,130 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:52:40,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:52:40,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:52:40,644 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:52:40,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:52:40,648 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:52:40,649 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-09-24 21:52:40,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab71674fe/293c35b4ca0c44e3b9034ed93c5da51c/FLAG56a2a6172 [2020-09-24 21:52:41,282 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:52:41,283 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-09-24 21:52:41,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab71674fe/293c35b4ca0c44e3b9034ed93c5da51c/FLAG56a2a6172 [2020-09-24 21:52:41,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ab71674fe/293c35b4ca0c44e3b9034ed93c5da51c [2020-09-24 21:52:41,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:52:41,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:52:41,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:52:41,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:52:41,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:52:41,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdd711c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41, skipping insertion in model container [2020-09-24 21:52:41,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:52:41,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:52:41,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:52:41,892 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:52:41,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:52:41,926 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:52:41,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41 WrapperNode [2020-09-24 21:52:41,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:52:41,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:52:41,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:52:41,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:52:41,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:41,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... [2020-09-24 21:52:42,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:52:42,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:52:42,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:52:42,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:52:42,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:52:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:52:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:52:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 21:52:42,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 21:52:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:52:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:52:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 21:52:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 21:52:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 21:52:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:52:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:52:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:52:42,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:52:42,440 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:52:42,440 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 21:52:42,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:52:42 BoogieIcfgContainer [2020-09-24 21:52:42,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:52:42,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:52:42,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:52:42,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:52:42,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:52:41" (1/3) ... [2020-09-24 21:52:42,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d08b3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:52:42, skipping insertion in model container [2020-09-24 21:52:42,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:52:41" (2/3) ... [2020-09-24 21:52:42,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d08b3a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:52:42, skipping insertion in model container [2020-09-24 21:52:42,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:52:42" (3/3) ... [2020-09-24 21:52:42,463 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-09-24 21:52:42,471 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:52:42,480 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:52:42,502 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:52:42,531 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:52:42,532 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:52:42,532 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:52:42,532 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:52:42,532 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:52:42,532 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:52:42,532 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:52:42,533 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:52:42,554 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-24 21:52:42,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-24 21:52:42,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:52:42,562 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] [2020-09-24 21:52:42,563 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:52:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:52:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash 960346385, now seen corresponding path program 1 times [2020-09-24 21:52:42,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:52:42,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962199149] [2020-09-24 21:52:42,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:52:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:42,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:42,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:43,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:43,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 21:52:43,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:52:43,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-24 21:52:43,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:52:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:52:43,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:52:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:52:43,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:52:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:43,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:43,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:43,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:52:43,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:43,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:52:43,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:52:43,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:52:43,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:52:43,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:52:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:52:43,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962199149] [2020-09-24 21:52:43,397 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:52:43,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:52:43,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429298265] [2020-09-24 21:52:43,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:52:43,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:52:43,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:52:43,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:52:43,428 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 8 states. [2020-09-24 21:52:43,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:52:43,836 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2020-09-24 21:52:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 21:52:43,838 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-09-24 21:52:43,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:52:43,850 INFO L225 Difference]: With dead ends: 62 [2020-09-24 21:52:43,850 INFO L226 Difference]: Without dead ends: 29 [2020-09-24 21:52:43,857 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-09-24 21:52:43,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-24 21:52:43,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2020-09-24 21:52:43,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-24 21:52:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-24 21:52:43,913 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 21 [2020-09-24 21:52:43,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:52:43,914 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-24 21:52:43,914 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:52:43,914 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-24 21:52:43,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-24 21:52:43,916 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:52:43,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:52:43,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:52:43,917 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:52:43,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:52:43,918 INFO L82 PathProgramCache]: Analyzing trace with hash 974616700, now seen corresponding path program 1 times [2020-09-24 21:52:43,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:52:43,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795784604] [2020-09-24 21:52:43,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:52:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:44,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:44,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:44,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-24 21:52:44,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:44,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-09-24 21:52:44,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 21:52:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:52:44,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 21:52:44,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:52:44,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:52:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:44,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:44,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:44,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:52:44,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:44,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:52:44,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:44,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:52:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:52:44,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:52:44,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:52:44,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:52:44,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795784604] [2020-09-24 21:52:44,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:52:44,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 21:52:44,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055925685] [2020-09-24 21:52:44,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:52:44,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:52:44,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:52:44,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:52:44,797 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 10 states. [2020-09-24 21:52:47,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:52:47,236 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2020-09-24 21:52:47,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:52:47,237 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-09-24 21:52:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:52:47,238 INFO L225 Difference]: With dead ends: 38 [2020-09-24 21:52:47,238 INFO L226 Difference]: Without dead ends: 33 [2020-09-24 21:52:47,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:52:47,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-24 21:52:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2020-09-24 21:52:47,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-24 21:52:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-24 21:52:47,247 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 25 [2020-09-24 21:52:47,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:52:47,248 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-24 21:52:47,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:52:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-24 21:52:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-24 21:52:47,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:52:47,250 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, 1] [2020-09-24 21:52:47,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:52:47,250 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:52:47,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:52:47,251 INFO L82 PathProgramCache]: Analyzing trace with hash 928460148, now seen corresponding path program 2 times [2020-09-24 21:52:47,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:52:47,252 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770641902] [2020-09-24 21:52:47,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:52:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:47,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:47,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:47,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:47,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:47,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-24 21:52:47,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:52:47,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-09-24 21:52:47,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:52:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 21:52:47,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-24 21:52:47,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:52:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:52:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:52:48,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:52:48,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:52:48,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:52:48,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:52:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:52:48,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:52:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:52:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:52:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:52:48,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:52:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-24 21:52:48,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770641902] [2020-09-24 21:52:48,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 21:52:48,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 21:52:48,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17546583] [2020-09-24 21:52:48,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:52:48,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:52:48,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:52:48,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:52:48,091 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 10 states. [2020-09-24 21:52:48,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:52:48,355 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-24 21:52:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:52:48,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-09-24 21:52:48,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:52:48,356 INFO L225 Difference]: With dead ends: 31 [2020-09-24 21:52:48,356 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:52:48,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:52:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:52:48,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:52:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:52:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:52:48,358 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-24 21:52:48,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:52:48,359 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:52:48,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:52:48,359 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:52:48,359 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:52:48,359 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:52:48,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:52:48,503 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:52:48,503 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-24 21:52:48,503 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:52:48,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 21:52:48,504 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 21:52:48,504 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 21:52:48,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 21:52:48,504 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:52:48,504 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:52:48,504 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 21:52:48,505 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 21:52:48,505 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-24 21:52:48,505 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 21:52:48,505 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 31) no Hoare annotation was computed. [2020-09-24 21:52:48,505 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-09-24 21:52:48,505 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-09-24 21:52:48,506 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 21:52:48,506 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 28) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (and (<= main_~l~0 .cse0) (<= .cse0 main_~l~0))) [2020-09-24 21:52:48,506 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 28) the Hoare annotation is: (let ((.cse2 (div (+ main_~i~0 main_~j~0) 4294967296)) (.cse3 (div main_~l~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ (* 4294967296 .cse2) main_~l~0))) (and (< .cse0 (+ main_~i~0 main_~j~0 .cse1 1)) (<= (+ main_~i~0 main_~j~0 .cse1) .cse0) (<= .cse2 .cse3)))) [2020-09-24 21:52:48,506 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-24 21:52:48,506 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-24 21:52:48,507 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-24 21:52:48,507 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-24 21:52:48,508 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-24 21:52:48,508 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 31) no Hoare annotation was computed. [2020-09-24 21:52:48,508 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-09-24 21:52:48,508 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 21:52:48,508 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-24 21:52:48,509 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 21:52:48,509 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-24 21:52:48,509 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-24 21:52:48,510 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-24 21:52:48,513 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-24 21:52:48,514 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-24 21:52:48,515 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-24 21:52:48,515 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 21:52:48,515 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-24 21:52:48,515 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-24 21:52:48,515 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-24 21:52:48,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 09:52:48 BoogieIcfgContainer [2020-09-24 21:52:48,541 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 21:52:48,552 INFO L168 Benchmark]: Toolchain (without parser) took 6909.19 ms. Allocated memory was 146.8 MB in the beginning and 244.3 MB in the end (delta: 97.5 MB). Free memory was 103.6 MB in the beginning and 96.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:48,553 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 21:52:48,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.14 ms. Allocated memory is still 146.8 MB. Free memory was 102.9 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:48,565 INFO L168 Benchmark]: Boogie Preprocessor took 116.74 ms. Allocated memory was 146.8 MB in the beginning and 201.9 MB in the end (delta: 55.1 MB). Free memory was 93.4 MB in the beginning and 180.8 MB in the end (delta: -87.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:48,568 INFO L168 Benchmark]: RCFGBuilder took 401.79 ms. Allocated memory is still 201.9 MB. Free memory was 180.8 MB in the beginning and 166.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:48,574 INFO L168 Benchmark]: TraceAbstraction took 6086.19 ms. Allocated memory was 201.9 MB in the beginning and 244.3 MB in the end (delta: 42.5 MB). Free memory was 166.1 MB in the beginning and 96.0 MB in the end (delta: 70.1 MB). Peak memory consumption was 112.6 MB. Max. memory is 7.1 GB. [2020-09-24 21:52:48,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.14 ms. Allocated memory is still 146.8 MB. Free memory was 102.9 MB in the beginning and 93.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.74 ms. Allocated memory was 146.8 MB in the beginning and 201.9 MB in the end (delta: 55.1 MB). Free memory was 93.4 MB in the beginning and 180.8 MB in the end (delta: -87.4 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 401.79 ms. Allocated memory is still 201.9 MB. Free memory was 180.8 MB in the beginning and 166.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6086.19 ms. Allocated memory was 201.9 MB in the beginning and 244.3 MB in the end (delta: 42.5 MB). Free memory was 166.1 MB in the beginning and 96.0 MB in the end (delta: 70.1 MB). Peak memory consumption was 112.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: l <= i + j && i + j <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 127 SDslu, 130 SDs, 0 SdLazy, 393 SolverSat, 26 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 16 NumberOfFragments, 65 HoareAnnotationTreeSize, 10 FomulaSimplifications, 125 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 95 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 13768 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...