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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-0883e75 [2019-09-05 13:01:19,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-05 13:01:19,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-05 13:01:19,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-05 13:01:19,022 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-05 13:01:19,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-05 13:01:19,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-05 13:01:19,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-05 13:01:19,035 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-05 13:01:19,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-05 13:01:19,037 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-05 13:01:19,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-05 13:01:19,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-05 13:01:19,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-05 13:01:19,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-05 13:01:19,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-05 13:01:19,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-05 13:01:19,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-05 13:01:19,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-05 13:01:19,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-05 13:01:19,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-05 13:01:19,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-05 13:01:19,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-05 13:01:19,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-05 13:01:19,052 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-05 13:01:19,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-05 13:01:19,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-05 13:01:19,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-05 13:01:19,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-05 13:01:19,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-05 13:01:19,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-05 13:01:19,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-05 13:01:19,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-05 13:01:19,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-05 13:01:19,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-05 13:01:19,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-05 13:01:19,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-05 13:01:19,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-05 13:01:19,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-05 13:01:19,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-05 13:01:19,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-05 13:01:19,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-05 13:01:19,075 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-05 13:01:19,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-05 13:01:19,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-05 13:01:19,076 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-05 13:01:19,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-05 13:01:19,077 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-05 13:01:19,080 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-05 13:01:19,080 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-05 13:01:19,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-05 13:01:19,081 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-05 13:01:19,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-05 13:01:19,082 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-05 13:01:19,085 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-05 13:01:19,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-05 13:01:19,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-05 13:01:19,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-05 13:01:19,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-05 13:01:19,086 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-05 13:01:19,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-05 13:01:19,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-05 13:01:19,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-05 13:01:19,087 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-05 13:01:19,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-05 13:01:19,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-05 13:01:19,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-05 13:01:19,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-05 13:01:19,088 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-05 13:01:19,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-05 13:01:19,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-05 13:01:19,089 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-05 13:01:19,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-05 13:01:19,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-05 13:01:19,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-05 13:01:19,151 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-05 13:01:19,151 INFO L275 PluginConnector]: CDTParser initialized [2019-09-05 13:01:19,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2019-09-05 13:01:19,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129d73bf9/559b2458db674e239fed1db9878e881e/FLAG7330cfcb0 [2019-09-05 13:01:19,714 INFO L306 CDTParser]: Found 1 translation units. [2019-09-05 13:01:19,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2019-09-05 13:01:19,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129d73bf9/559b2458db674e239fed1db9878e881e/FLAG7330cfcb0 [2019-09-05 13:01:20,029 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/129d73bf9/559b2458db674e239fed1db9878e881e [2019-09-05 13:01:20,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-05 13:01:20,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-05 13:01:20,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-05 13:01:20,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-05 13:01:20,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-05 13:01:20,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:20,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623ebb7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20, skipping insertion in model container [2019-09-05 13:01:20,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:20,055 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-05 13:01:20,138 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-05 13:01:20,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:01:20,715 INFO L188 MainTranslator]: Completed pre-run [2019-09-05 13:01:20,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-05 13:01:20,986 INFO L192 MainTranslator]: Completed translation [2019-09-05 13:01:20,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20 WrapperNode [2019-09-05 13:01:20,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-05 13:01:20,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-05 13:01:20,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-05 13:01:20,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-05 13:01:21,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (1/1) ... [2019-09-05 13:01:21,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-05 13:01:21,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-05 13:01:21,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-05 13:01:21,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-05 13:01:21,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (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 [2019-09-05 13:01:21,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-05 13:01:21,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-05 13:01:21,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-05 13:01:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-05 13:01:21,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-05 13:01:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-05 13:01:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-05 13:01:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-05 13:01:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-05 13:01:21,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-05 13:01:22,417 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-05 13:01:22,417 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-05 13:01:22,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:01:22 BoogieIcfgContainer [2019-09-05 13:01:22,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-05 13:01:22,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-05 13:01:22,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-05 13:01:22,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-05 13:01:22,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.09 01:01:20" (1/3) ... [2019-09-05 13:01:22,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4031c01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 01:01:22, skipping insertion in model container [2019-09-05 13:01:22,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.09 01:01:20" (2/3) ... [2019-09-05 13:01:22,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4031c01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.09 01:01:22, skipping insertion in model container [2019-09-05 13:01:22,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.09 01:01:22" (3/3) ... [2019-09-05 13:01:22,428 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2019-09-05 13:01:22,437 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-05 13:01:22,446 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-05 13:01:22,463 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-05 13:01:22,490 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-05 13:01:22,490 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-05 13:01:22,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-05 13:01:22,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-05 13:01:22,491 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-05 13:01:22,491 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-05 13:01:22,491 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-05 13:01:22,491 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-05 13:01:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states. [2019-09-05 13:01:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-05 13:01:22,534 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 13:01:22,536 INFO L399 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 13:01:22,538 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 13:01:22,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 13:01:22,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1633347547, now seen corresponding path program 1 times [2019-09-05 13:01:22,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-05 13:01:22,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:01:22,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 13:01:22,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:01:22,602 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-05 13:01:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 13:01:23,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 13:01:23,130 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 13:01:23,130 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-05 13:01:23,131 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-05 13:01:23,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-05 13:01:23,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-05 13:01:23,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-05 13:01:23,154 INFO L87 Difference]: Start difference. First operand 252 states. Second operand 5 states. [2019-09-05 13:01:23,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 13:01:23,989 INFO L93 Difference]: Finished difference Result 261 states and 495 transitions. [2019-09-05 13:01:23,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-05 13:01:23,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2019-09-05 13:01:23,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 13:01:24,013 INFO L225 Difference]: With dead ends: 261 [2019-09-05 13:01:24,013 INFO L226 Difference]: Without dead ends: 253 [2019-09-05 13:01:24,016 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-05 13:01:24,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-09-05 13:01:24,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2019-09-05 13:01:24,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-05 13:01:24,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2019-09-05 13:01:24,072 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2019-09-05 13:01:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 13:01:24,073 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2019-09-05 13:01:24,073 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-05 13:01:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2019-09-05 13:01:24,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-05 13:01:24,077 INFO L391 BasicCegarLoop]: Found error trace [2019-09-05 13:01:24,077 INFO L399 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-05 13:01:24,078 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-05 13:01:24,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-05 13:01:24,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1070545246, now seen corresponding path program 1 times [2019-09-05 13:01:24,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-05 13:01:24,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:01:24,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-05 13:01:24,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-05 13:01:24,080 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-05 13:01:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-05 13:01:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-05 13:01:24,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-05 13:01:24,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-05 13:01:24,287 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-05 13:01:24,292 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-05 13:01:24,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-05 13:01:24,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-05 13:01:24,293 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand 5 states. [2019-09-05 13:01:24,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-05 13:01:24,939 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2019-09-05 13:01:24,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-05 13:01:24,939 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2019-09-05 13:01:24,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-05 13:01:24,941 INFO L225 Difference]: With dead ends: 256 [2019-09-05 13:01:24,941 INFO L226 Difference]: Without dead ends: 0 [2019-09-05 13:01:24,942 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-05 13:01:24,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-05 13:01:24,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-05 13:01:24,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-05 13:01:24,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-05 13:01:24,943 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2019-09-05 13:01:24,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-05 13:01:24,943 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-05 13:01:24,943 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-05 13:01:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-05 13:01:24,944 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-05 13:01:24,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.09 01:01:24 BoogieIcfgContainer [2019-09-05 13:01:24,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-05 13:01:24,952 INFO L168 Benchmark]: Toolchain (without parser) took 4911.64 ms. Allocated memory was 139.5 MB in the beginning and 269.5 MB in the end (delta: 130.0 MB). Free memory was 85.3 MB in the beginning and 203.3 MB in the end (delta: -118.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2019-09-05 13:01:24,953 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory is still 105.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-05 13:01:24,954 INFO L168 Benchmark]: CACSL2BoogieTranslator took 946.91 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 85.3 MB in the beginning and 160.8 MB in the end (delta: -75.5 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-09-05 13:01:24,955 INFO L168 Benchmark]: Boogie Preprocessor took 151.81 ms. Allocated memory is still 201.3 MB. Free memory was 160.8 MB in the beginning and 156.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-05 13:01:24,956 INFO L168 Benchmark]: RCFGBuilder took 1278.35 ms. Allocated memory was 201.3 MB in the beginning and 225.4 MB in the end (delta: 24.1 MB). Free memory was 156.9 MB in the beginning and 148.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. [2019-09-05 13:01:24,957 INFO L168 Benchmark]: TraceAbstraction took 2529.75 ms. Allocated memory was 225.4 MB in the beginning and 269.5 MB in the end (delta: 44.0 MB). Free memory was 148.4 MB in the beginning and 203.3 MB in the end (delta: -54.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-05 13:01:24,960 INFO L335 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 139.5 MB. Free memory is still 105.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 946.91 ms. Allocated memory was 139.5 MB in the beginning and 201.3 MB in the end (delta: 61.9 MB). Free memory was 85.3 MB in the beginning and 160.8 MB in the end (delta: -75.5 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.81 ms. Allocated memory is still 201.3 MB. Free memory was 160.8 MB in the beginning and 156.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1278.35 ms. Allocated memory was 201.3 MB in the beginning and 225.4 MB in the end (delta: 24.1 MB). Free memory was 156.9 MB in the beginning and 148.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 87.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2529.75 ms. Allocated memory was 225.4 MB in the beginning and 269.5 MB in the end (delta: 44.0 MB). Free memory was 148.4 MB in the beginning and 203.3 MB in the end (delta: -54.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1998]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2307]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 252 locations, 2 error locations. SAFE Result, 2.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 379 SDtfs, 791 SDslu, 651 SDs, 0 SdLazy, 1158 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 83140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...