java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 09:05:19,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 09:05:19,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 09:05:19,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 09:05:19,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 09:05:19,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 09:05:19,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 09:05:19,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 09:05:19,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 09:05:19,924 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 09:05:19,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 09:05:19,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 09:05:19,927 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 09:05:19,928 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 09:05:19,929 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 09:05:19,930 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 09:05:19,930 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 09:05:19,932 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 09:05:19,934 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 09:05:19,936 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 09:05:19,937 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 09:05:19,938 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 09:05:19,940 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 09:05:19,940 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 09:05:19,941 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 09:05:19,941 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 09:05:19,942 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 09:05:19,943 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 09:05:19,944 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 09:05:19,945 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 09:05:19,945 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 09:05:19,946 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 09:05:19,946 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 09:05:19,947 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 09:05:19,948 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 09:05:19,948 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 09:05:19,949 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-11 09:05:19,964 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 09:05:19,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 09:05:19,968 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 09:05:19,969 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 09:05:19,969 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 09:05:19,969 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 09:05:19,969 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 09:05:19,970 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-11 09:05:19,970 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 09:05:19,970 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 09:05:19,970 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 09:05:19,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 09:05:19,971 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 09:05:19,971 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 09:05:19,971 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 09:05:19,972 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 09:05:19,972 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 09:05:19,972 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 09:05:19,972 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 09:05:19,972 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 09:05:19,973 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 09:05:19,973 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 09:05:19,973 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 09:05:19,973 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 09:05:19,974 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 09:05:19,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 09:05:19,975 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 09:05:19,975 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 09:05:19,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 09:05:19,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 09:05:19,976 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 09:05:19,976 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 09:05:19,976 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 09:05:20,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 09:05:20,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 09:05:20,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 09:05:20,046 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 09:05:20,047 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 09:05:20,048 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i [2018-09-11 09:05:20,409 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af91e403b/a624879b79464b80a3b127acf68259d4/FLAG6d88945c4 [2018-09-11 09:05:20,578 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 09:05:20,578 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/large_const_true-unreach-call_true-termination.i [2018-09-11 09:05:20,587 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af91e403b/a624879b79464b80a3b127acf68259d4/FLAG6d88945c4 [2018-09-11 09:05:20,603 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af91e403b/a624879b79464b80a3b127acf68259d4 [2018-09-11 09:05:20,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 09:05:20,617 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 09:05:20,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 09:05:20,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 09:05:20,630 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 09:05:20,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783e93cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20, skipping insertion in model container [2018-09-11 09:05:20,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,814 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 09:05:20,860 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:05:20,878 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 09:05:20,889 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 09:05:20,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20 WrapperNode [2018-09-11 09:05:20,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 09:05:20,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 09:05:20,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 09:05:20,905 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 09:05:20,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 09:05:20,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 09:05:20,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 09:05:20,930 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 09:05:20,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... [2018-09-11 09:05:20,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 09:05:20,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 09:05:20,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 09:05:20,955 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 09:05:20,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2018-09-11 09:05:21,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 09:05:21,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 09:05:21,034 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 09:05:21,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 09:05:21,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 09:05:21,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 09:05:21,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 09:05:21,035 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 09:05:21,567 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 09:05:21,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:05:21 BoogieIcfgContainer [2018-09-11 09:05:21,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 09:05:21,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 09:05:21,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 09:05:21,575 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 09:05:21,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 09:05:20" (1/3) ... [2018-09-11 09:05:21,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632457a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:05:21, skipping insertion in model container [2018-09-11 09:05:21,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 09:05:20" (2/3) ... [2018-09-11 09:05:21,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632457a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 09:05:21, skipping insertion in model container [2018-09-11 09:05:21,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 09:05:21" (3/3) ... [2018-09-11 09:05:21,582 INFO L112 eAbstractionObserver]: Analyzing ICFG large_const_true-unreach-call_true-termination.i [2018-09-11 09:05:21,591 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 09:05:21,599 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 09:05:21,643 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 09:05:21,644 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 09:05:21,644 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 09:05:21,644 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 09:05:21,644 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 09:05:21,644 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 09:05:21,644 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 09:05:21,645 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 09:05:21,645 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 09:05:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-09-11 09:05:21,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-11 09:05:21,672 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:21,673 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:21,674 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:21,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1750555721, now seen corresponding path program 1 times [2018-09-11 09:05:21,682 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:21,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-09-11 09:05:21,686 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [46], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 09:05:21,739 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:21,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:21,857 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:21,859 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-09-11 09:05:21,905 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:22,002 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 86.67% of their original sizes. [2018-09-11 09:05:22,003 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:22,060 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:22,061 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:22,061 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-11 09:05:22,062 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:22,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-11 09:05:22,073 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-11 09:05:22,073 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 09:05:22,076 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 4 states. [2018-09-11 09:05:22,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:22,417 INFO L93 Difference]: Finished difference Result 56 states and 76 transitions. [2018-09-11 09:05:22,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-11 09:05:22,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-09-11 09:05:22,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:22,428 INFO L225 Difference]: With dead ends: 56 [2018-09-11 09:05:22,428 INFO L226 Difference]: Without dead ends: 32 [2018-09-11 09:05:22,431 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 09:05:22,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-09-11 09:05:22,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 22. [2018-09-11 09:05:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-09-11 09:05:22,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-09-11 09:05:22,475 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2018-09-11 09:05:22,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:22,476 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-09-11 09:05:22,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-11 09:05:22,476 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-09-11 09:05:22,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 09:05:22,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:22,477 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:22,477 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:22,478 INFO L82 PathProgramCache]: Analyzing trace with hash -325731125, now seen corresponding path program 1 times [2018-09-11 09:05:22,478 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:22,478 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 09:05:22,479 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 09:05:22,481 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:22,481 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:22,499 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:22,500 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 15 variables. [2018-09-11 09:05:22,536 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:22,590 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 79.53% of their original sizes. [2018-09-11 09:05:22,591 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:22,766 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:22,767 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:22,767 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 09:05:22,767 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:22,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 09:05:22,768 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 09:05:22,769 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 09:05:22,769 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 6 states. [2018-09-11 09:05:23,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:23,141 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-09-11 09:05:23,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 09:05:23,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-09-11 09:05:23,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:23,143 INFO L225 Difference]: With dead ends: 37 [2018-09-11 09:05:23,143 INFO L226 Difference]: Without dead ends: 24 [2018-09-11 09:05:23,145 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-09-11 09:05:23,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-09-11 09:05:23,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-09-11 09:05:23,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-09-11 09:05:23,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2018-09-11 09:05:23,157 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2018-09-11 09:05:23,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:23,158 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2018-09-11 09:05:23,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 09:05:23,158 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-09-11 09:05:23,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-11 09:05:23,161 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:23,161 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:23,161 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:23,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1659274082, now seen corresponding path program 1 times [2018-09-11 09:05:23,163 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:23,163 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2018-09-11 09:05:23,164 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [29], [33], [36], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 09:05:23,166 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:23,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:23,238 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:23,238 INFO L272 AbstractInterpreter]: Visited 17 different actions 23 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 09:05:23,245 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:23,404 INFO L232 lantSequenceWeakener]: Weakened 12 states. On average, predicates are now at 73.33% of their original sizes. [2018-09-11 09:05:23,405 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:24,089 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:24,089 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:24,089 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-11 09:05:24,089 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:24,090 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-11 09:05:24,090 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-11 09:05:24,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-09-11 09:05:24,091 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 12 states. [2018-09-11 09:05:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:25,189 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-09-11 09:05:25,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-11 09:05:25,191 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 19 [2018-09-11 09:05:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:25,192 INFO L225 Difference]: With dead ends: 54 [2018-09-11 09:05:25,193 INFO L226 Difference]: Without dead ends: 38 [2018-09-11 09:05:25,194 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-11 09:05:25,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-09-11 09:05:25,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-09-11 09:05:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-09-11 09:05:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-09-11 09:05:25,209 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 19 [2018-09-11 09:05:25,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:25,209 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-09-11 09:05:25,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-11 09:05:25,210 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-09-11 09:05:25,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-11 09:05:25,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:25,211 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:25,211 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:25,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1678569579, now seen corresponding path program 1 times [2018-09-11 09:05:25,212 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:25,212 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-11 09:05:25,212 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [29], [33], [38], [41], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 09:05:25,214 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:25,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:25,243 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:25,243 INFO L272 AbstractInterpreter]: Visited 18 different actions 24 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 09:05:25,272 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:25,374 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 72.43% of their original sizes. [2018-09-11 09:05:25,375 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:26,248 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:26,249 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:26,249 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:26,249 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:26,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:26,250 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:26,251 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:26,251 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 13 states. [2018-09-11 09:05:26,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:26,805 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2018-09-11 09:05:26,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 09:05:26,806 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-09-11 09:05:26,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:26,809 INFO L225 Difference]: With dead ends: 64 [2018-09-11 09:05:26,809 INFO L226 Difference]: Without dead ends: 48 [2018-09-11 09:05:26,810 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-11 09:05:26,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-11 09:05:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 37. [2018-09-11 09:05:26,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-09-11 09:05:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2018-09-11 09:05:26,825 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 20 [2018-09-11 09:05:26,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:26,825 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2018-09-11 09:05:26,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:26,825 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2018-09-11 09:05:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-11 09:05:26,826 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:26,827 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:26,827 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:26,827 INFO L82 PathProgramCache]: Analyzing trace with hash -2071596589, now seen corresponding path program 1 times [2018-09-11 09:05:26,827 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:26,828 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-11 09:05:26,828 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [15], [19], [23], [27], [29], [33], [38], [43], [48], [52], [58], [66], [67], [68], [70] [2018-09-11 09:05:26,830 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:26,830 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:26,854 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:26,854 INFO L272 AbstractInterpreter]: Visited 18 different actions 24 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 17 variables. [2018-09-11 09:05:26,894 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:26,961 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 72.43% of their original sizes. [2018-09-11 09:05:26,961 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:27,368 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:27,369 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:27,369 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:27,369 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:27,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:27,370 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:27,370 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:27,371 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand 13 states. [2018-09-11 09:05:27,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:27,779 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-09-11 09:05:27,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-11 09:05:27,780 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 20 [2018-09-11 09:05:27,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:27,781 INFO L225 Difference]: With dead ends: 58 [2018-09-11 09:05:27,781 INFO L226 Difference]: Without dead ends: 42 [2018-09-11 09:05:27,782 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-11 09:05:27,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-09-11 09:05:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2018-09-11 09:05:27,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-11 09:05:27,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2018-09-11 09:05:27,798 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 20 [2018-09-11 09:05:27,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:27,799 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2018-09-11 09:05:27,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:27,799 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2018-09-11 09:05:27,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-11 09:05:27,800 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:27,800 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:27,800 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:27,801 INFO L82 PathProgramCache]: Analyzing trace with hash 539091162, now seen corresponding path program 1 times [2018-09-11 09:05:27,801 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:27,801 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-09-11 09:05:27,801 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [29], [33], [36], [48], [52], [58], [60], [66], [67], [68], [70], [71] [2018-09-11 09:05:27,803 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:27,804 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:27,834 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:27,835 INFO L272 AbstractInterpreter]: Visited 21 different actions 38 times. Merged at 8 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 19 variables. [2018-09-11 09:05:27,838 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:27,917 INFO L232 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 75.47% of their original sizes. [2018-09-11 09:05:27,917 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:28,220 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:28,221 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:28,221 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-11 09:05:28,221 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:28,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-11 09:05:28,223 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-11 09:05:28,223 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2018-09-11 09:05:28,224 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 13 states. [2018-09-11 09:05:29,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:29,116 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-09-11 09:05:29,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-11 09:05:29,117 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2018-09-11 09:05:29,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:29,119 INFO L225 Difference]: With dead ends: 52 [2018-09-11 09:05:29,119 INFO L226 Difference]: Without dead ends: 31 [2018-09-11 09:05:29,120 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-09-11 09:05:29,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-11 09:05:29,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-09-11 09:05:29,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-11 09:05:29,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-09-11 09:05:29,135 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 27 [2018-09-11 09:05:29,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:29,136 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-09-11 09:05:29,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-11 09:05:29,136 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-09-11 09:05:29,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-11 09:05:29,137 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:29,137 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:29,137 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:29,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2088465907, now seen corresponding path program 1 times [2018-09-11 09:05:29,138 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:29,138 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 29 with the following transitions: [2018-09-11 09:05:29,138 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [29], [33], [38], [41], [48], [52], [58], [60], [66], [67], [68], [70], [71] [2018-09-11 09:05:29,140 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:29,141 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:29,168 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:29,168 INFO L272 AbstractInterpreter]: Visited 22 different actions 39 times. Merged at 8 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 19 variables. [2018-09-11 09:05:29,184 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:29,269 INFO L232 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 74.77% of their original sizes. [2018-09-11 09:05:29,269 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:29,593 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:29,594 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:29,594 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 09:05:29,595 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:29,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 09:05:29,596 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 09:05:29,596 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-09-11 09:05:29,596 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 14 states. [2018-09-11 09:05:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:30,129 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-09-11 09:05:30,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 09:05:30,130 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-09-11 09:05:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:30,131 INFO L225 Difference]: With dead ends: 52 [2018-09-11 09:05:30,132 INFO L226 Difference]: Without dead ends: 31 [2018-09-11 09:05:30,132 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-09-11 09:05:30,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-09-11 09:05:30,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-09-11 09:05:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-09-11 09:05:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-09-11 09:05:30,147 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 28 [2018-09-11 09:05:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:30,147 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-09-11 09:05:30,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 09:05:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-09-11 09:05:30,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-11 09:05:30,149 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 09:05:30,149 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 09:05:30,149 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 09:05:30,149 INFO L82 PathProgramCache]: Analyzing trace with hash 212356683, now seen corresponding path program 1 times [2018-09-11 09:05:30,150 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 09:05:30,150 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 29 with the following transitions: [2018-09-11 09:05:30,150 INFO L202 CegarAbsIntRunner]: [0], [1], [4], [6], [9], [11], [15], [19], [23], [27], [29], [33], [38], [43], [48], [52], [58], [60], [66], [67], [68], [70], [71] [2018-09-11 09:05:30,152 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 09:05:30,152 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 09:05:30,178 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 09:05:30,178 INFO L272 AbstractInterpreter]: Visited 22 different actions 39 times. Merged at 8 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 19 variables. [2018-09-11 09:05:30,205 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 09:05:30,279 INFO L232 lantSequenceWeakener]: Weakened 20 states. On average, predicates are now at 74.77% of their original sizes. [2018-09-11 09:05:30,279 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 09:05:30,588 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 09:05:30,589 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 09:05:30,589 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-11 09:05:30,589 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 09:05:30,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-11 09:05:30,590 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-11 09:05:30,590 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-09-11 09:05:30,591 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 14 states. [2018-09-11 09:05:31,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 09:05:31,138 INFO L93 Difference]: Finished difference Result 32 states and 32 transitions. [2018-09-11 09:05:31,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-11 09:05:31,140 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-09-11 09:05:31,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 09:05:31,140 INFO L225 Difference]: With dead ends: 32 [2018-09-11 09:05:31,141 INFO L226 Difference]: Without dead ends: 0 [2018-09-11 09:05:31,142 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-09-11 09:05:31,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-11 09:05:31,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-11 09:05:31,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-11 09:05:31,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-11 09:05:31,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-09-11 09:05:31,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 09:05:31,144 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-11 09:05:31,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-11 09:05:31,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-11 09:05:31,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-11 09:05:31,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-11 09:05:31,725 WARN L175 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 325 [2018-09-11 09:05:32,078 WARN L175 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 368 [2018-09-11 09:05:32,228 WARN L175 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 285 [2018-09-11 09:05:35,861 WARN L175 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 325 DAG size of output: 42 [2018-09-11 09:05:39,310 WARN L175 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 368 DAG size of output: 62 [2018-09-11 09:05:40,445 WARN L175 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 285 DAG size of output: 59 [2018-09-11 09:05:40,449 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-11 09:05:40,449 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-11 09:05:40,449 INFO L429 ceAbstractionStarter]: At program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-09-11 09:05:40,449 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-09-11 09:05:40,449 INFO L426 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-09-11 09:05:40,449 INFO L426 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-09-11 09:05:40,450 INFO L426 ceAbstractionStarter]: For program point __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_invgen_large_const_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-09-11 09:05:40,450 INFO L426 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-09-11 09:05:40,450 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-11 09:05:40,450 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-11 09:05:40,450 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-11 09:05:40,450 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-11 09:05:40,450 INFO L422 ceAbstractionStarter]: At program point L33(line 33) the Hoare annotation is: (let ((.cse1 (+ main_~j~0 1)) (.cse9 (* 2 main_~c2~0))) (let ((.cse0 (<= .cse9 4000)) (.cse2 (<= 2 (* 2 main_~k~0))) (.cse6 (<= 1 (+ main_~j~0 main_~n~0))) (.cse3 (= main_~c1~0 4000)) (.cse7 (+ main_~j~0 main_~k~0)) (.cse4 (<= 4000 .cse9)) (.cse5 (= main_~c3~0 10000)) (.cse8 (<= main_~n~0 .cse1))) (or (and .cse0 (= (mod main_~k~0 2000) 0) (<= .cse1 main_~n~0) .cse2 (<= (+ main_~k~0 main_~n~0) 2001) .cse3 (<= main_~k~0 (+ main_~j~0 2000)) .cse4 .cse5) (and .cse0 .cse2 .cse6 (= (mod main_~k~0 4000) 0) .cse3 (<= .cse7 4000) .cse4 .cse5 .cse8) (and (= (mod main_~k~0 10000) 0) .cse0 .cse2 .cse6 .cse3 (<= .cse7 10000) .cse4 .cse5 .cse8)))) [2018-09-11 09:05:40,451 INFO L426 ceAbstractionStarter]: For program point L33-1(line 33) no Hoare annotation was computed. [2018-09-11 09:05:40,451 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 38) no Hoare annotation was computed. [2018-09-11 09:05:40,451 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-11 09:05:40,451 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-11 09:05:40,451 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 38) no Hoare annotation was computed. [2018-09-11 09:05:40,451 INFO L426 ceAbstractionStarter]: For program point L32-1(lines 32 36) no Hoare annotation was computed. [2018-09-11 09:05:40,451 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 38) the Hoare annotation is: true [2018-09-11 09:05:40,452 INFO L422 ceAbstractionStarter]: At program point L32-3(lines 32 36) the Hoare annotation is: (let ((.cse4 (+ main_~j~0 main_~k~0)) (.cse5 (<= main_~n~0 main_~j~0)) (.cse6 (= main_~c1~0 4000)) (.cse7 (= main_~c2~0 2000)) (.cse8 (= main_~c3~0 10000)) (.cse0 (= main_~j~0 0)) (.cse1 (<= 0 (+ main_~k~0 main_~n~0))) (.cse2 (<= main_~n~0 main_~k~0)) (.cse3 (<= main_~n~0 (+ main_~j~0 1)))) (or (and (or (and (= (mod main_~k~0 10000) 0) (<= main_~k~0 (+ main_~n~0 9999)) .cse0 .cse1 .cse2 .cse3) (and (<= 2 (+ main_~j~0 main_~n~0)) (<= 0 (* 2 main_~k~0)) (<= (* 2 main_~j~0) 2) (not (= main_~k~0 0)) (<= .cse4 10000) .cse5)) .cse6 .cse7 .cse8) (and (and (<= main_~k~0 (+ main_~n~0 3999)) (= (mod main_~k~0 4000) 0) .cse0 .cse1 .cse2 .cse3) .cse6 .cse7 .cse8) (and (<= .cse4 0) (<= main_~i~0 main_~k~0) (<= main_~k~0 main_~n~0) (= main_~i~0 0) .cse5) (and .cse6 .cse7 .cse8 (and (= (mod main_~k~0 2000) 0) (<= main_~k~0 (+ main_~n~0 1999)) .cse0 .cse1 .cse2 .cse3)))) [2018-09-11 09:05:40,452 INFO L426 ceAbstractionStarter]: For program point L32-4(lines 32 36) no Hoare annotation was computed. [2018-09-11 09:05:40,452 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 29) no Hoare annotation was computed. [2018-09-11 09:05:40,452 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2018-09-11 09:05:40,452 INFO L422 ceAbstractionStarter]: At program point L26-2(lines 20 30) the Hoare annotation is: (let ((.cse3 (= main_~c1~0 4000)) (.cse1 (<= main_~n~0 main_~i~0)) (.cse4 (= main_~c2~0 2000)) (.cse2 (= main_~c3~0 10000))) (or (and (let ((.cse0 (+ main_~i~0 9999))) (and (<= main_~i~0 main_~n~0) (<= main_~k~0 .cse0) (= main_~k~0 10000) .cse1 (<= .cse0 main_~c3~0) .cse2)) .cse3 .cse4) (and (or (and (and (<= 2001 (+ main_~c2~0 main_~n~0)) (<= main_~c2~0 main_~k~0) (= main_~k~0 2000) (<= (+ main_~i~0 1999) main_~k~0) .cse1) .cse3) (and (or (and (<= (+ main_~k~0 main_~n~0) 9) .cse3 (<= main_~i~0 main_~k~0) (<= (+ main_~c1~0 main_~k~0) 4000) (<= main_~k~0 main_~n~0) (= main_~i~0 0)) (and (<= (+ main_~c1~0 main_~i~0) 4001) .cse3 (<= (+ main_~n~0 3999) main_~k~0) (<= 4001 (+ main_~c1~0 main_~n~0)) .cse1 (<= (* 2 main_~k~0) 8000))) .cse4)) .cse2))) [2018-09-11 09:05:40,452 INFO L426 ceAbstractionStarter]: For program point L20-1(lines 20 30) no Hoare annotation was computed. [2018-09-11 09:05:40,452 INFO L426 ceAbstractionStarter]: For program point L20-3(lines 20 30) no Hoare annotation was computed. [2018-09-11 09:05:40,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 09:05:40 BoogieIcfgContainer [2018-09-11 09:05:40,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 09:05:40,467 INFO L168 Benchmark]: Toolchain (without parser) took 19853.80 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.1 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 770.1 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:40,469 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 09:05:40,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:40,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 09:05:40,470 INFO L168 Benchmark]: Boogie Preprocessor took 24.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 09:05:40,471 INFO L168 Benchmark]: RCFGBuilder took 613.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:40,472 INFO L168 Benchmark]: TraceAbstraction took 18897.14 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 349.2 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -279.1 MB). Peak memory consumption was 812.2 MB. Max. memory is 7.1 GB. [2018-09-11 09:05:40,476 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 286.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.81 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 613.79 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -777.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18897.14 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 349.2 MB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -279.1 MB). Peak memory consumption was 812.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 32]: Loop Invariant Derived loop invariant: (((((((((((k % 10000 == 0 && k <= n + 9999) && j == 0) && 0 <= k + n) && n <= k) && n <= j + 1) || (((((2 <= j + n && 0 <= 2 * k) && 2 * j <= 2) && !(k == 0)) && j + k <= 10000) && n <= j)) && c1 == 4000) && c2 == 2000) && c3 == 10000) || ((((((((k <= n + 3999 && k % 4000 == 0) && j == 0) && 0 <= k + n) && n <= k) && n <= j + 1) && c1 == 4000) && c2 == 2000) && c3 == 10000)) || ((((j + k <= 0 && i <= k) && k <= n) && i == 0) && n <= j)) || (((c1 == 4000 && c2 == 2000) && c3 == 10000) && ((((k % 2000 == 0 && k <= n + 1999) && j == 0) && 0 <= k + n) && n <= k) && n <= j + 1) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (((((((i <= n && k <= i + 9999) && k == 10000) && n <= i) && i + 9999 <= c3) && c3 == 10000) && c1 == 4000) && c2 == 2000) || (((((((2001 <= c2 + n && c2 <= k) && k == 2000) && i + 1999 <= k) && n <= i) && c1 == 4000) || (((((((k + n <= 9 && c1 == 4000) && i <= k) && c1 + k <= 4000) && k <= n) && i == 0) || (((((c1 + i <= 4001 && c1 == 4000) && n + 3999 <= k) && 4001 <= c1 + n) && n <= i) && 2 * k <= 8000)) && c2 == 2000)) && c3 == 10000) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 27 locations, 1 error locations. SAFE Result, 18.8s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 4.7s AutomataDifference, 0.0s DeadEndRemovalTime, 9.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 138 SDtfs, 284 SDslu, 570 SDs, 0 SdLazy, 709 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 192 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.8744914433322567 AbsIntWeakeningRatio, 1.0797546012269938 AbsIntAvgWeakeningVarsNumRemoved, 18.368098159509202 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 34 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 18 PreInvPairs, 35 NumberOfFragments, 406 HoareAnnotationTreeSize, 18 FomulaSimplifications, 2974 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 21054 FormulaSimplificationTreeSizeReductionInter, 8.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/large_const_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_09-05-40-503.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/large_const_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_09-05-40-503.csv Received shutdown request...