/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-invariants/eq2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:17:48,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:17:48,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:17:48,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:17:48,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:17:48,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:17:48,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:17:48,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:17:48,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:17:48,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:17:48,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:17:48,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:17:48,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:17:48,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:17:48,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:17:48,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:17:48,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:17:48,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:17:48,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:17:48,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:17:48,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:17:48,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:17:48,929 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:17:48,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:17:48,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 04:17:48,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 04:17:48,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 04:17:48,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 04:17:48,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 04:17:48,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 04:17:48,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:17:48,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:17:48,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:17:48,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:17:48,939 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:17:48,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:17:48,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:17:48,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:17:48,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:17:48,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:17:48,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:17:48,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:17:48,959 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:17:48,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:17:48,960 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:17:48,960 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:17:48,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:17:48,960 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:17:48,961 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:17:48,961 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:17:48,961 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:17:48,961 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:17:48,961 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:17:48,962 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:17:48,962 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:17:48,962 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:17:48,962 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:17:48,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:17:48,963 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:17:48,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:17:48,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:17:48,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:17:48,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:17:48,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:17:48,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:17:48,964 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:17:48,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:17:48,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:17:48,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:17:48,965 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:17:48,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:17:48,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:17:48,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:17:48,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:17:48,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:17:48,966 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:17:48,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:17:48,967 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:17:48,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:17:48,967 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:17:49,235 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:17:49,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:17:49,259 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:17:49,260 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:17:49,261 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:17:49,261 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2.c [2019-11-24 04:17:49,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3d36c08/36ef89ea5fd54d96b727c11c3143b356/FLAGd38f08799 [2019-11-24 04:17:49,742 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:17:49,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2.c [2019-11-24 04:17:49,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3d36c08/36ef89ea5fd54d96b727c11c3143b356/FLAGd38f08799 [2019-11-24 04:17:50,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f3d36c08/36ef89ea5fd54d96b727c11c3143b356 [2019-11-24 04:17:50,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:17:50,158 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:17:50,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:17:50,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:17:50,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:17:50,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487d0c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50, skipping insertion in model container [2019-11-24 04:17:50,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:17:50,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:17:50,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:17:50,445 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:17:50,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:17:50,482 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:17:50,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50 WrapperNode [2019-11-24 04:17:50,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:17:50,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:17:50,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:17:50,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:17:50,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:17:50,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:17:50,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:17:50,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:17:50,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (1/1) ... [2019-11-24 04:17:50,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:17:50,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:17:50,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:17:50,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:17:50,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (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 [2019-11-24 04:17:50,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:17:50,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:17:50,948 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:17:50,948 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-24 04:17:50,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:17:50 BoogieIcfgContainer [2019-11-24 04:17:50,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:17:50,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:17:50,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:17:50,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:17:50,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:17:50" (1/3) ... [2019-11-24 04:17:50,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4760ea11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:17:50, skipping insertion in model container [2019-11-24 04:17:50,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:17:50" (2/3) ... [2019-11-24 04:17:50,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4760ea11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:17:50, skipping insertion in model container [2019-11-24 04:17:50,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:17:50" (3/3) ... [2019-11-24 04:17:50,957 INFO L109 eAbstractionObserver]: Analyzing ICFG eq2.c [2019-11-24 04:17:50,966 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:17:50,972 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-24 04:17:50,983 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-24 04:17:51,009 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:17:51,009 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:17:51,009 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:17:51,009 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:17:51,009 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:17:51,010 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:17:51,010 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:17:51,010 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:17:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-11-24 04:17:51,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:17:51,027 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:17:51,027 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:17:51,028 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:17:51,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:17:51,032 INFO L82 PathProgramCache]: Analyzing trace with hash 984610, now seen corresponding path program 1 times [2019-11-24 04:17:51,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:17:51,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708969865] [2019-11-24 04:17:51,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:17:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:17:51,356 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 16 [2019-11-24 04:17:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:17:51,387 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708969865] [2019-11-24 04:17:51,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:17:51,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-24 04:17:51,390 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520120434] [2019-11-24 04:17:51,394 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-24 04:17:51,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:17:51,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-24 04:17:51,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-24 04:17:51,410 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-11-24 04:17:51,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:17:51,486 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-11-24 04:17:51,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-24 04:17:51,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-24 04:17:51,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:17:51,496 INFO L225 Difference]: With dead ends: 9 [2019-11-24 04:17:51,497 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:17:51,502 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-24 04:17:51,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:17:51,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:17:51,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:17:51,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:17:51,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-24 04:17:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:17:51,531 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:17:51,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-24 04:17:51,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:17:51,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:17:51,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:17:51,592 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:17:51,593 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-24 04:17:51,593 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:17:51,593 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-24 04:17:51,594 INFO L440 ceAbstractionStarter]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~y~0 4294967296)) (.cse3 (div ULTIMATE.start_main_~z~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ ULTIMATE.start_main_~z~0 (* 4294967296 .cse2)))) (and (< .cse0 (+ .cse1 ULTIMATE.start_main_~y~0 1)) (<= (+ .cse1 ULTIMATE.start_main_~y~0) .cse0) (<= .cse2 .cse3)))) [2019-11-24 04:17:51,594 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-24 04:17:51,595 INFO L440 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse2 (div ULTIMATE.start_main_~y~0 4294967296)) (.cse3 (div ULTIMATE.start_main_~z~0 4294967296))) (let ((.cse1 (* 4294967296 .cse3)) (.cse0 (+ ULTIMATE.start_main_~z~0 (* 4294967296 .cse2)))) (and (< .cse0 (+ .cse1 ULTIMATE.start_main_~y~0 1)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ .cse1 ULTIMATE.start_main_~y~0) .cse0) (<= .cse2 .cse3)))) [2019-11-24 04:17:51,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:17:51 BoogieIcfgContainer [2019-11-24 04:17:51,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:17:51,615 INFO L168 Benchmark]: Toolchain (without parser) took 1460.27 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 101.5 MB in the beginning and 138.2 MB in the end (delta: -36.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,617 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.23 ms. Allocated memory is still 144.7 MB. Free memory was 101.3 MB in the beginning and 92.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 164.17 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 92.0 MB in the beginning and 183.6 MB in the end (delta: -91.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,621 INFO L168 Benchmark]: Boogie Preprocessor took 21.86 ms. Allocated memory is still 204.5 MB. Free memory was 183.6 MB in the beginning and 182.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,622 INFO L168 Benchmark]: RCFGBuilder took 279.11 ms. Allocated memory is still 204.5 MB. Free memory was 182.2 MB in the beginning and 170.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,623 INFO L168 Benchmark]: TraceAbstraction took 662.81 ms. Allocated memory is still 204.5 MB. Free memory was 169.9 MB in the beginning and 138.2 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2019-11-24 04:17:51,634 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 324.23 ms. Allocated memory is still 144.7 MB. Free memory was 101.3 MB in the beginning and 92.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 164.17 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 92.0 MB in the beginning and 183.6 MB in the end (delta: -91.6 MB). Peak memory consumption was 11.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.86 ms. Allocated memory is still 204.5 MB. Free memory was 183.6 MB in the beginning and 182.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 279.11 ms. Allocated memory is still 204.5 MB. Free memory was 182.2 MB in the beginning and 170.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 662.81 ms. Allocated memory is still 204.5 MB. Free memory was 169.9 MB in the beginning and 138.2 MB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 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: 14]: Loop Invariant Derived loop invariant: (z + 4294967296 * (y / 4294967296) < 4294967296 * (z / 4294967296) + y + 1 && 4294967296 * (z / 4294967296) + y <= z + 4294967296 * (y / 4294967296)) && y / 4294967296 <= z / 4294967296 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((z + 4294967296 * (y / 4294967296) < 4294967296 * (z / 4294967296) + y + 1 && !(0 == cond)) && 4294967296 * (z / 4294967296) + y <= z + 4294967296 * (y / 4294967296)) && y / 4294967296 <= z / 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 5 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 82 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...