./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invariants/eq2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-invariants/eq2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fdb1f2e16ca0cea0aeedbb6ec0b2cb707dfee0e0 ................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 00:06:12,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 00:06:12,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 00:06:13,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 00:06:13,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 00:06:13,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 00:06:13,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 00:06:13,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 00:06:13,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 00:06:13,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 00:06:13,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 00:06:13,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 00:06:13,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 00:06:13,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 00:06:13,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 00:06:13,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 00:06:13,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 00:06:13,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 00:06:13,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 00:06:13,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 00:06:13,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 00:06:13,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 00:06:13,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 00:06:13,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 00:06:13,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 00:06:13,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 00:06:13,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 00:06:13,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 00:06:13,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 00:06:13,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 00:06:13,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 00:06:13,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 00:06:13,070 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 00:06:13,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 00:06:13,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 00:06:13,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 00:06:13,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 00:06:13,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 00:06:13,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 00:06:13,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 00:06:13,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 00:06:13,079 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 00:06:13,107 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 00:06:13,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 00:06:13,109 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 00:06:13,109 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 00:06:13,109 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 00:06:13,110 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 00:06:13,110 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 00:06:13,110 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 00:06:13,110 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 00:06:13,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 00:06:13,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 00:06:13,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 00:06:13,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 00:06:13,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 00:06:13,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 00:06:13,112 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 00:06:13,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 00:06:13,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 00:06:13,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 00:06:13,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 00:06:13,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 00:06:13,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 00:06:13,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 00:06:13,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 00:06:13,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 00:06:13,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 00:06:13,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 00:06:13,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 00:06:13,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdb1f2e16ca0cea0aeedbb6ec0b2cb707dfee0e0 [2019-11-28 00:06:13,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 00:06:13,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 00:06:13,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 00:06:13,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 00:06:13,422 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 00:06:13,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/eq2.c [2019-11-28 00:06:13,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768695b60/5e58afd587c143e5a5a5b9a065eba0c4/FLAG31cb7f4b1 [2019-11-28 00:06:13,895 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 00:06:13,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/eq2.c [2019-11-28 00:06:13,901 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768695b60/5e58afd587c143e5a5a5b9a065eba0c4/FLAG31cb7f4b1 [2019-11-28 00:06:14,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/768695b60/5e58afd587c143e5a5a5b9a065eba0c4 [2019-11-28 00:06:14,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 00:06:14,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 00:06:14,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 00:06:14,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 00:06:14,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 00:06:14,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4696e6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14, skipping insertion in model container [2019-11-28 00:06:14,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,307 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 00:06:14,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 00:06:14,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:06:14,497 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 00:06:14,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 00:06:14,521 INFO L208 MainTranslator]: Completed translation [2019-11-28 00:06:14,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14 WrapperNode [2019-11-28 00:06:14,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 00:06:14,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 00:06:14,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 00:06:14,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 00:06:14,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 00:06:14,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 00:06:14,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 00:06:14,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 00:06:14,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (1/1) ... [2019-11-28 00:06:14,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 00:06:14,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 00:06:14,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 00:06:14,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 00:06:14,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (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 [2019-11-28 00:06:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 00:06:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 00:06:14,835 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 00:06:14,836 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 00:06:14,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:06:14 BoogieIcfgContainer [2019-11-28 00:06:14,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 00:06:14,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 00:06:14,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 00:06:14,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 00:06:14,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:06:14" (1/3) ... [2019-11-28 00:06:14,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f12b179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:06:14, skipping insertion in model container [2019-11-28 00:06:14,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:06:14" (2/3) ... [2019-11-28 00:06:14,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f12b179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:06:14, skipping insertion in model container [2019-11-28 00:06:14,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:06:14" (3/3) ... [2019-11-28 00:06:14,846 INFO L109 eAbstractionObserver]: Analyzing ICFG eq2.c [2019-11-28 00:06:14,854 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 00:06:14,860 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 00:06:14,871 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 00:06:14,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 00:06:14,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 00:06:14,893 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 00:06:14,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 00:06:14,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 00:06:14,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 00:06:14,893 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 00:06:14,893 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 00:06:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-28 00:06:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-28 00:06:14,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 00:06:14,910 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-28 00:06:14,911 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 00:06:14,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 00:06:14,917 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-28 00:06:14,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 00:06:14,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515583818] [2019-11-28 00:06:14,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 00:06:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 00:06:15,278 WARN L192 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 17 [2019-11-28 00:06:15,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 00:06:15,296 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515583818] [2019-11-28 00:06:15,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 00:06:15,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 00:06:15,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161718794] [2019-11-28 00:06:15,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 00:06:15,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 00:06:15,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 00:06:15,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 00:06:15,319 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-11-28 00:06:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 00:06:15,393 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-28 00:06:15,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 00:06:15,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-28 00:06:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 00:06:15,402 INFO L225 Difference]: With dead ends: 16 [2019-11-28 00:06:15,403 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 00:06:15,406 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 [2019-11-28 00:06:15,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 00:06:15,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 00:06:15,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 00:06:15,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 00:06:15,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-28 00:06:15,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 00:06:15,431 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 00:06:15,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 00:06:15,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 00:06:15,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 00:06:15,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 00:06:15,509 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 00:06:15,509 INFO L242 CegarLoopResult]: At program point L19(lines 9 20) the Hoare annotation is: (let ((.cse0 (div ULTIMATE.start_main_~y~0 4294967296)) (.cse1 (div ULTIMATE.start_main_~z~0 4294967296))) (let ((.cse3 (* 4294967296 .cse1)) (.cse2 (+ ULTIMATE.start_main_~z~0 (* 4294967296 .cse0)))) (and (< .cse0 (+ .cse1 1)) (< .cse2 (+ .cse3 ULTIMATE.start_main_~y~0 1)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ .cse3 ULTIMATE.start_main_~y~0) .cse2)))) [2019-11-28 00:06:15,510 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-28 00:06:15,510 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 00:06:15,510 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 00:06:15,510 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-28 00:06:15,510 INFO L242 CegarLoopResult]: At program point L14-2(lines 14 17) the Hoare annotation is: (let ((.cse0 (div ULTIMATE.start_main_~y~0 4294967296)) (.cse1 (div ULTIMATE.start_main_~z~0 4294967296))) (let ((.cse3 (* 4294967296 .cse1)) (.cse2 (+ ULTIMATE.start_main_~z~0 (* 4294967296 .cse0)))) (and (< .cse0 (+ .cse1 1)) (< .cse2 (+ .cse3 ULTIMATE.start_main_~y~0 1)) (<= (+ .cse3 ULTIMATE.start_main_~y~0) .cse2)))) [2019-11-28 00:06:15,511 INFO L246 CegarLoopResult]: For program point L14-3(lines 14 17) no Hoare annotation was computed. [2019-11-28 00:06:15,511 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-28 00:06:15,511 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse0 (div ULTIMATE.start_main_~y~0 4294967296)) (.cse1 (div ULTIMATE.start_main_~z~0 4294967296))) (let ((.cse3 (* 4294967296 .cse1)) (.cse2 (+ ULTIMATE.start_main_~z~0 (* 4294967296 .cse0)))) (and (< .cse0 (+ .cse1 1)) (< .cse2 (+ .cse3 ULTIMATE.start_main_~y~0 1)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ .cse3 ULTIMATE.start_main_~y~0) .cse2)))) [2019-11-28 00:06:15,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:06:15 BoogieIcfgContainer [2019-11-28 00:06:15,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 00:06:15,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 00:06:15,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 00:06:15,533 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 00:06:15,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:06:14" (3/4) ... [2019-11-28 00:06:15,538 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 00:06:15,548 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 00:06:15,548 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 00:06:15,588 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 00:06:15,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 00:06:15,590 INFO L168 Benchmark]: Toolchain (without parser) took 1299.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -123.2 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-28 00:06:15,591 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:06:15,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.54 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 00:06:15,592 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 00:06:15,593 INFO L168 Benchmark]: Boogie Preprocessor took 16.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 00:06:15,593 INFO L168 Benchmark]: RCFGBuilder took 211.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:06:15,594 INFO L168 Benchmark]: TraceAbstraction took 693.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. [2019-11-28 00:06:15,595 INFO L168 Benchmark]: Witness Printer took 55.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 00:06:15,599 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 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.54 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -193.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 211.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 693.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 11.5 GB. * Witness Printer took 55.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 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: (y / 4294967296 < z / 4294967296 + 1 && z + 4294967296 * (y / 4294967296) < 4294967296 * (z / 4294967296) + y + 1) && 4294967296 * (z / 4294967296) + y <= z + 4294967296 * (y / 4294967296) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((y / 4294967296 < z / 4294967296 + 1 && z + 4294967296 * (y / 4294967296) < 4294967296 * (z / 4294967296) + y + 1) && !(0 == cond)) && 4294967296 * (z / 4294967296) + y <= z + 4294967296 * (y / 4294967296) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ((y / 4294967296 < z / 4294967296 + 1 && z + 4294967296 * (y / 4294967296) < 4294967296 * (z / 4294967296) + y + 1) && !(0 == cond)) && 4294967296 * (z / 4294967296) + y <= z + 4294967296 * (y / 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 9 SDslu, 2 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=10occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 131 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 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...