/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=NARROWEST --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 [2020-09-25 02:21:00,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:21:00,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:21:00,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:21:00,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:21:00,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:21:00,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:21:00,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:21:00,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:21:00,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:21:00,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:21:00,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:21:00,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:21:00,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:21:00,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:21:00,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:21:00,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:21:00,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:21:00,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:21:00,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:21:00,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:21:00,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:21:00,546 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:21:00,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:21:00,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:21:00,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:21:00,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:21:00,559 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:21:00,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:21:00,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:21:00,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:21:00,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:21:00,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:21:00,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:21:00,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:21:00,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:21:00,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:21:00,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:21:00,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:21:00,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:21:00,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:21:00,577 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 02:21:00,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:21:00,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:21:00,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:21:00,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:21:00,611 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:21:00,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:21:00,612 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:21:00,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:21:00,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:21:00,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:21:00,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:21:00,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:21:00,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:21:00,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:21:00,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:21:00,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:21:00,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:21:00,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:21:00,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:21:00,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:21:00,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:21:00,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:21:00,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:21:00,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:21:00,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:21:00,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:21:00,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:21:00,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:21:00,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:21:00,616 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:21:01,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:21:01,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:21:01,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:21:01,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:21:01,140 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:21:01,141 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-09-25 02:21:01,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d0ad2e6b/ffdcc1b78ad54abf82733244b4fb86db/FLAG0254325f9 [2020-09-25 02:21:01,742 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:21:01,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/sumt2.c [2020-09-25 02:21:01,752 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d0ad2e6b/ffdcc1b78ad54abf82733244b4fb86db/FLAG0254325f9 [2020-09-25 02:21:02,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7d0ad2e6b/ffdcc1b78ad54abf82733244b4fb86db [2020-09-25 02:21:02,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:21:02,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:21:02,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:21:02,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:21:02,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:21:02,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22f0616b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02, skipping insertion in model container [2020-09-25 02:21:02,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:21:02,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:21:02,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:21:02,403 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:21:02,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:21:02,437 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:21:02,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02 WrapperNode [2020-09-25 02:21:02,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:21:02,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:21:02,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:21:02,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:21:02,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,545 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (1/1) ... [2020-09-25 02:21:02,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:21:02,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:21:02,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:21:02,560 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:21:02,562 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (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 02:21:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:21:02,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:21:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:21:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-25 02:21:02,649 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:21:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:21:02,649 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-25 02:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:21:02,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:21:02,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:21:02,928 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:21:02,928 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 02:21:02,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:02 BoogieIcfgContainer [2020-09-25 02:21:02,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:21:02,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:21:02,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:21:02,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:21:02,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:21:02" (1/3) ... [2020-09-25 02:21:02,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733f9542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:02, skipping insertion in model container [2020-09-25 02:21:02,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:21:02" (2/3) ... [2020-09-25 02:21:02,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733f9542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:21:02, skipping insertion in model container [2020-09-25 02:21:02,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:21:02" (3/3) ... [2020-09-25 02:21:02,967 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt2.c [2020-09-25 02:21:02,988 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:21:03,005 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:21:03,028 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:21:03,054 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:21:03,055 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:21:03,055 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:21:03,055 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:21:03,055 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:21:03,055 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:21:03,055 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:21:03,055 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:21:03,077 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-25 02:21:03,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 02:21:03,084 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:03,085 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] [2020-09-25 02:21:03,085 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:03,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:03,092 INFO L82 PathProgramCache]: Analyzing trace with hash 960346385, now seen corresponding path program 1 times [2020-09-25 02:21:03,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:03,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665473705] [2020-09-25 02:21:03,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:03,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:03,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:21:03,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:21:03,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 02:21:03,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:03,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 02:21:03,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:03,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 02:21:03,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:03,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:03,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:03,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:21:03,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:03,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:21:03,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:03,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:21:03,656 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 02:21:03,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665473705] [2020-09-25 02:21:03,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:03,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 02:21:03,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295577722] [2020-09-25 02:21:03,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 02:21:03,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:03,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 02:21:03,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:21:03,688 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-09-25 02:21:03,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:03,754 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-09-25 02:21:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 02:21:03,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-09-25 02:21:03,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:03,768 INFO L225 Difference]: With dead ends: 46 [2020-09-25 02:21:03,768 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 02:21:03,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 02:21:03,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 02:21:03,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 02:21:03,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 02:21:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 02:21:03,817 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 21 [2020-09-25 02:21:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:03,817 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 02:21:03,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 02:21:03,818 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 02:21:03,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-25 02:21:03,819 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:03,819 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] [2020-09-25 02:21:03,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:21:03,820 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:03,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:03,820 INFO L82 PathProgramCache]: Analyzing trace with hash 948340612, now seen corresponding path program 1 times [2020-09-25 02:21:03,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:03,821 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474218121] [2020-09-25 02:21:03,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:03,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:04,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-25 02:21:04,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:04,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 02:21:04,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 02:21:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:21:04,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 02:21:04,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:04,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:04,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:04,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:04,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:21:04,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:04,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:21:04,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:04,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:04,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:04,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:21:04,290 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 02:21:04,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474218121] [2020-09-25 02:21:04,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:04,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:21:04,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968465755] [2020-09-25 02:21:04,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:21:04,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:04,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:21:04,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:21:04,298 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 8 states. [2020-09-25 02:21:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:06,661 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2020-09-25 02:21:06,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 02:21:06,662 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-09-25 02:21:06,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:06,664 INFO L225 Difference]: With dead ends: 34 [2020-09-25 02:21:06,664 INFO L226 Difference]: Without dead ends: 29 [2020-09-25 02:21:06,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:21:06,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-09-25 02:21:06,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2020-09-25 02:21:06,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-09-25 02:21:06,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-09-25 02:21:06,673 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 21 [2020-09-25 02:21:06,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:06,673 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-09-25 02:21:06,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:21:06,674 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-09-25 02:21:06,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-25 02:21:06,675 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:06,675 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] [2020-09-25 02:21:06,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:21:06,676 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:06,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:06,676 INFO L82 PathProgramCache]: Analyzing trace with hash 974616700, now seen corresponding path program 1 times [2020-09-25 02:21:06,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:06,677 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794396620] [2020-09-25 02:21:06,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:06,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:07,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:07,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 02:21:07,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:07,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-25 02:21:07,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 02:21:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:21:07,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:21:07,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:07,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:07,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:07,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:07,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:21:07,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:07,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:21:07,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:07,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:07,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:07,431 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 02:21:07,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794396620] [2020-09-25 02:21:07,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:21:07,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:21:07,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490707734] [2020-09-25 02:21:07,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:21:07,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:07,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:21:07,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:21:07,435 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 10 states. [2020-09-25 02:21:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:07,791 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2020-09-25 02:21:07,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:21:07,792 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-09-25 02:21:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:07,796 INFO L225 Difference]: With dead ends: 47 [2020-09-25 02:21:07,797 INFO L226 Difference]: Without dead ends: 34 [2020-09-25 02:21:07,798 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 [2020-09-25 02:21:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-25 02:21:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 31. [2020-09-25 02:21:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-25 02:21:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2020-09-25 02:21:07,816 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 25 [2020-09-25 02:21:07,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:07,816 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2020-09-25 02:21:07,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:21:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-09-25 02:21:07,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 02:21:07,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:07,819 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] [2020-09-25 02:21:07,819 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:21:07,819 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:07,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:07,820 INFO L82 PathProgramCache]: Analyzing trace with hash 928460148, now seen corresponding path program 2 times [2020-09-25 02:21:07,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:07,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071604808] [2020-09-25 02:21:07,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:07,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:07,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:08,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:08,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 613 [2020-09-25 02:21:08,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:21:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:10,244 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 33 DAG size of output: 12 [2020-09-25 02:21:10,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:10,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:10,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:10,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:21:10,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:10,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:21:10,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:10,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:10,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:10,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:21:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:21:10,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071604808] [2020-09-25 02:21:10,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:21:10,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 02:21:10,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226461635] [2020-09-25 02:21:10,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 02:21:10,350 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:10,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 02:21:10,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 02:21:10,351 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2020-09-25 02:21:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:14,676 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2020-09-25 02:21:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 02:21:14,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-09-25 02:21:14,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:14,679 INFO L225 Difference]: With dead ends: 45 [2020-09-25 02:21:14,680 INFO L226 Difference]: Without dead ends: 35 [2020-09-25 02:21:14,680 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:21:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-09-25 02:21:14,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2020-09-25 02:21:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 02:21:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-25 02:21:14,689 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 29 [2020-09-25 02:21:14,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:14,689 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-25 02:21:14,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 02:21:14,690 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-25 02:21:14,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-09-25 02:21:14,690 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:21:14,691 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:21:14,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 02:21:14,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:21:14,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:21:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash 229467604, now seen corresponding path program 1 times [2020-09-25 02:21:14,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:21:14,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [331944739] [2020-09-25 02:21:14,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:21:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:14,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:15,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:15,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 02:21:15,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:15,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 360 [2020-09-25 02:21:15,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 02:21:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 02:21:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 02:21:15,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:15,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:21:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:21:15,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:21:15,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:21:15,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:21:15,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:21:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:21:15,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:21:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:21:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:21:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:21:15,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:21:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 02:21:15,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [331944739] [2020-09-25 02:21:15,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:21:15,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 02:21:15,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291106132] [2020-09-25 02:21:15,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:21:15,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:21:15,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:21:15,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:21:15,289 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 10 states. [2020-09-25 02:21:15,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:21:15,572 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 02:21:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:21:15,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-09-25 02:21:15,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:21:15,573 INFO L225 Difference]: With dead ends: 34 [2020-09-25 02:21:15,573 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 02:21:15,574 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 [2020-09-25 02:21:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 02:21:15,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 02:21:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 02:21:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 02:21:15,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2020-09-25 02:21:15,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:21:15,575 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 02:21:15,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:21:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 02:21:15,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 02:21:15,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 02:21:15,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 02:21:15,756 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:21:15,756 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-25 02:21:15,756 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:21:15,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-25 02:21:15,757 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-25 02:21:15,757 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-25 02:21:15,757 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-25 02:21:15,757 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:21:15,757 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 31) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point L23(lines 23 26) no Hoare annotation was computed. [2020-09-25 02:21:15,758 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 26) no Hoare annotation was computed. [2020-09-25 02:21:15,759 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-25 02:21:15,759 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))) [2020-09-25 02:21:15,760 INFO L264 CegarLoopResult]: At program point L21-3(lines 21 28) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 main_~j~0))) (let ((.cse1 (div .cse0 4294967296)) (.cse2 (div main_~l~0 4294967296))) (or (and (<= main_~i~0 0) (<= .cse0 0) (<= 0 main_~i~0) (= (+ (* .cse1 4294967296) main_~l~0) (+ main_~i~0 main_~j~0 (* .cse2 4294967296))) (<= 0 .cse0)) (let ((.cse4 (* 4294967296 .cse2)) (.cse3 (+ (* 4294967296 .cse1) main_~l~0))) (and (< .cse3 (+ main_~i~0 main_~j~0 .cse4 1)) (<= (+ main_~i~0 main_~j~0 .cse4) .cse3) (<= .cse1 .cse2)))))) [2020-09-25 02:21:15,761 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-25 02:21:15,761 INFO L268 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-09-25 02:21:15,761 INFO L268 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-09-25 02:21:15,761 INFO L268 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2020-09-25 02:21:15,761 INFO L268 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-09-25 02:21:15,762 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 31) no Hoare annotation was computed. [2020-09-25 02:21:15,762 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 31) the Hoare annotation is: true [2020-09-25 02:21:15,762 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-25 02:21:15,763 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-09-25 02:21:15,763 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-25 02:21:15,763 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-09-25 02:21:15,764 INFO L268 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-09-25 02:21:15,764 INFO L268 CegarLoopResult]: For program point L16-1(line 16) no Hoare annotation was computed. [2020-09-25 02:21:15,764 INFO L268 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-09-25 02:21:15,765 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-25 02:21:15,765 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-09-25 02:21:15,765 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-25 02:21:15,765 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-09-25 02:21:15,765 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-09-25 02:21:15,767 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-09-25 02:21:15,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:21:15 BoogieIcfgContainer [2020-09-25 02:21:15,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 02:21:15,793 INFO L168 Benchmark]: Toolchain (without parser) took 13695.16 ms. Allocated memory was 145.2 MB in the beginning and 250.1 MB in the end (delta: 104.9 MB). Free memory was 101.7 MB in the beginning and 145.7 MB in the end (delta: -44.0 MB). Peak memory consumption was 60.8 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:15,794 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 02:21:15,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.15 ms. Allocated memory is still 145.2 MB. Free memory was 101.0 MB in the beginning and 91.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:15,796 INFO L168 Benchmark]: Boogie Preprocessor took 120.28 ms. Allocated memory was 145.2 MB in the beginning and 200.8 MB in the end (delta: 55.6 MB). Free memory was 91.4 MB in the beginning and 179.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:15,797 INFO L168 Benchmark]: RCFGBuilder took 374.04 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 165.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:15,798 INFO L168 Benchmark]: TraceAbstraction took 12846.89 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 164.7 MB in the beginning and 145.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. [2020-09-25 02:21:15,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 335.15 ms. Allocated memory is still 145.2 MB. Free memory was 101.0 MB in the beginning and 91.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.28 ms. Allocated memory was 145.2 MB in the beginning and 200.8 MB in the end (delta: 55.6 MB). Free memory was 91.4 MB in the beginning and 179.5 MB in the end (delta: -88.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 374.04 ms. Allocated memory is still 200.8 MB. Free memory was 178.8 MB in the beginning and 165.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12846.89 ms. Allocated memory was 200.8 MB in the beginning and 250.1 MB in the end (delta: 49.3 MB). Free memory was 164.7 MB in the beginning and 145.7 MB in the end (delta: 19.0 MB). Peak memory consumption was 68.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: l <= i + j && i + j <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.5s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 164 SDslu, 131 SDs, 0 SdLazy, 393 SolverSat, 33 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.7s 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 19 NumberOfFragments, 101 HoareAnnotationTreeSize, 12 FomulaSimplifications, 177 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 103 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 15960 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 9/12 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...